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Zaphod Beeblebrox

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Zaphod Beeblebrox ( / ˈ z eɪ f ɒ d ˈ b iː b əl b r ɒ k s / ) is a fictional character in the various versions of the comic science fiction series The Hitchhiker's Guide to the Galaxy by Douglas Adams .

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180-526: He is from a planet in the vicinity of Betelgeuse , and is a "semi-half-cousin" of Ford Prefect , with whom he "shares three of the same mothers". Because of "an accident with a contraceptive and a time machine ", his father, grandfather, and great-grandfather are actually his direct descendants (see Zaphod Beeblebrox the Fourth ). This character is described across all versions as having two heads and three arms, though explanations of how he came to receive

360-492: A dual head X multiseat configuration is referred to as Zaphod mode . A nightclub named Zaphod Beeblebrox existed in Ottawa, Ontario , Canada, billed as "the nightclub at the edge of the universe." Opened in the early 1990s, it hosted an assortment of artists including Jewel , The Sheepdogs and Alanis Morissette , who previewed Jagged Little Pill with a concert there. The Rolling Stones shot part of their video for

540-411: A genital ulcer ; even if they do not, they increase the risk of both acquiring and passing on HIV up to ten-fold. Hepatitis B can also be transmitted through sexual contact. Globally, there are about 257 million chronic carriers of hepatitis B. HIV is one of the world's leading infectious killers; in 2010, approximately 30 million people were estimated to have died because of it since the beginning of

720-460: A stroke can also largely impact on the ability to engage in sexual intercourse. Although disability-related pain, including as a result of cancer , and mobility impairment can hamper sexual intercourse, in many cases, the most significant impediments to sexual intercourse for individuals with a disability are psychological. In particular, people who have a disability can find sexual intercourse daunting due to issues involving their self-concept as

900-416: A B–V color index of 1.85 – a figure which points to its pronounced "redness". The photosphere has an extended atmosphere , which displays strong lines of emission rather than absorption , a phenomenon that occurs when a star is surrounded by a thick gaseous envelope (rather than ionized). This extended gaseous atmosphere has been observed moving toward and away from Betelgeuse, depending on fluctuations in

1080-426: A boy who is 1 to 3 years older than they are. Between 1988 and 2002, the percentage of people in the U.S. who had sexual intercourse between the ages of 15 and 19 fell from 60 to 46 percent for never-married males, and from 51 to 46 percent for never-married females. In humans, sexual intercourse and sexual activity in general have been reported as having health benefits as varied as increased immunity by increasing

1260-436: A diameter of 0.047″ , although the stellar disk was likely 17% larger due to the limb darkening , resulting in an estimate for its angular diameter of about 0.055". Since then, other studies have produced angular diameters that range from 0.042 to 0.069″ . Combining these data with historical distance estimates of 180 to 815 ly yields a projected radius of the stellar disk of anywhere from 1.2 to 8.9 AU . Using

1440-530: A diameter of 3.84 × 10  km ( 2.58  AU ) based on the parallax value of 0.018 ″ . But limb darkening and measurement errors resulted in uncertainty about the accuracy of these measurements. The 1950s and 1960s saw two developments that affected stellar convection theory in red supergiants: the Stratoscope projects and the 1958 publication of Structure and Evolution of the Stars , principally

1620-548: A distance of roughly 131 pc or 427 ly , and had a smaller reported error than previous measurements. However, later evaluation of the Hipparcos parallax measurements for variable stars like Betelgeuse found that the uncertainty of these measurements had been underestimated. In 2007, an improved figure of 6.55 ± 0.83 was calculated, hence a much tighter error factor yielding a distance of roughly 152 ± 20 pc or 500 ± 65 ly . In 2008, measurements using

1800-547: A dust cloud that blocked the starlight coming from about a quarter of Betelgeuse's surface. Hubble captured signs of dense, heated material moving through the star's atmosphere in September, October and November before several telescopes observed the more marked dimming in December and the first few months of 2020. By January 2020, Betelgeuse had dimmed by a factor of approximately 2.5 from magnitude 0.5 to 1.5 and

1980-519: A few hundred days are typically due to fundamental and first overtone pulsation. Lines in the spectrum of Betelgeuse show doppler shifts indicating radial velocity changes corresponding, very roughly, to the brightness changes. This demonstrates the nature of the pulsations in size, although corresponding temperature and spectral variations are not clearly seen. Variations in the diameter of Betelgeuse have also been measured directly. First overtone pulsations of 185 days have been observed, and

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2160-467: A few times, such as for tormenting Arthur Dent , piloting the spaceship Heart of Gold , or preparing a Pan-Galactic Gargle Blaster. The second head was sawed off by Humma Kavula during the film. In And Another Thing... , Colfer's addition to the book series, a photo is mentioned which shows Zaphod with the second head replaced by that of a woman. It is implied that Zaphod may have surgically attached this woman's head to himself, before realising he liked

2340-504: A form of safe sex and contraception. Condoms are widely recommended for the prevention of sexually transmitted infections (STIs). According to reports by the National Institutes of Health (NIH) and World Health Organization (WHO), correct and consistent use of latex condoms reduces the risk of HIV/AIDS transmission by approximately 85–99% relative to risk when unprotected. Condoms are rarely used for oral sex and there

2520-604: A lack of "dialogue around this population's human right to consensual sexual expression, undertreatment of menstrual disorders, and legal and systemic barriers". Women with intellectual disability may lack sexual health care and sex education. They may not recognize sexual abuse. Consensual sexual intercourse is not always an option for some. Those with intellectual disability may have limited knowledge and access to contraception, screening for sexually transmitted infections and cervical cancer. Sexual intercourse may be for reproductive, relational, or recreational purposes. It often plays

2700-408: A large collar or scarf to keep it hidden. As such, the film is also the only version that explains the second head . In this filmed version, the second head appears underneath the first, roughly between his chin and the top of his chest, popping up when the first head is flipped backwards. The third arm is hidden underneath Zaphod's clothing, appears to be controlled by the second head, and only appears

2880-533: A little over twenty times that of the Sun . For various reasons , its distance has been quite difficult to measure; current best estimates are of the order of 400–600  light-years from the Sun ;– a comparatively wide uncertainty for a relatively nearby star. Its absolute magnitude is about −6. With an age of less than 10 million years, Betelgeuse has evolved rapidly because of its large mass, and

3060-517: A man's penis into another person's rectum, but may also mean the use of sex toys or fingers to penetrate the anus, or oral sex on the anus ( anilingus ), or pegging . Oral sex consists of all the sexual activities that involve the use of the mouth and throat to stimulate genitalia or anus. It is sometimes performed to the exclusion of all other forms of sexual activity, and may include the ingestion or absorption of semen (during fellatio ) or vaginal fluids (during cunnilingus ). Fingering involves

3240-562: A more normal brightness range, reaching a peak of 0.0 visual and 0.1 V-band magnitude in April 2023. Infrared observations found no significant change in luminosity over the last 50 years, suggesting that the dimming was due to a change in extinction around the star rather than a more fundamental change. A study using the Hubble Space Telescope suggests that occluding dust was created by a surface mass ejection; this material

3420-497: A neurotransmitter. This behavior is characterized by a fixation on sexual intercourse and disinhibition. It was proposed that this 'addictive behavior' be classified in DSM-5 as an impulsive–compulsive behavioral disorder. Addiction to sexual intercourse is thought to be genetically linked. Those having an addiction to sexual intercourse have a higher response to visual sexual cues in the brain. Those seeking treatment will typically see

3600-625: A paper titled "Zaphod Beeblebrox's Brain and the Fifty-ninth Row of Pascal's Triangle " in The American Mathematical Monthly, Vol. 99, (1992), pp. 318–331. In 2016, during season 4 of Teenage Mutant Ninja Turtles , the group travels to a Cantina in outer space belonging to someone named Zaphod. Sun Microsystems manuals published in the 1980s named the computers in their network diagrams Zaphod, Beeble and Brox. Betelgeuse Betelgeuse

3780-505: A physician for pharmacological management and therapy. One form of hypersexuality is Kleine–Levin syndrome . It is manifested by hypersomnia and hypersexuality and remains relatively rare. Sexual activity can directly cause death , particularly due to coronary circulation complications, which is sometimes called coital death, coital sudden death or coital coronary. However, coital deaths are significantly rare. People, especially those who get little or no physical exercise, have

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3960-554: A portrait of high resolution. It was this methodology that identified the hotspots on Betelgeuse in the 1990s. Other technological breakthroughs include adaptive optics , space observatories like Hipparcos, Hubble and Spitzer , and the Astronomical Multi-BEam Recombiner (AMBER) , which combines the beams of three telescopes simultaneously, allowing researchers to achieve milliarcsecond spatial resolution . Observations in different regions of

4140-605: A primary form of sexual activity. Researchers commonly use sexual intercourse to denote penile–vaginal intercourse while using specific words, such as anal sex or oral sex , for other sexual behaviors. Scholars Richard M. Lerner and Laurence Steinberg state that researchers also "rarely disclose" how they conceptualize sex "or even whether they resolved potential discrepancies" in conceptualizations of sex. Lerner and Steinberg attribute researchers' focus on penile–vaginal sex to "the larger culture's preoccupation with this form of sexual activity", and have expressed concern that

4320-490: A radio-controlled second head with an eye-patch. Unfortunately, the second head's mechanics seldom worked properly and so for most of the time it just sat on Zaphod's shoulder looking inanimate, although in one scene it manages to have a brief conversation with Wing-Davey's real head, before being told to "go back to sleep". Wing-Davey also suggested to the TV series' costume designer that Zaphod's costume should be made to indicate that

4500-462: A receptive partner during anal intercourse. The study said that fewer women reported engaging in anal sex than other partnered sexual behaviors. It was estimated that 10% to 14% of women aged 18 to 39 years old practiced anal sex in the past 90 days, and that most of the women who engage in anal sex said they practiced it once a month or a few times a year. The prevalence of sexual intercourse has been compared cross-culturally. In 2003, Michael Bozon of

4680-510: A resolution superior to that obtained by ground-based interferometers—the first conventional-telescope image (or "direct-image" in NASA terminology) of the disk of another star. Because ultraviolet light is absorbed by the Earth's atmosphere , observations at these wavelengths are best performed by space telescopes . This image, like earlier pictures, contained a bright patch indicating a region in

4860-461: A role in personal decisions about sexual intercourse or other sexual activity, such as decisions about virginity , or legal and public policy matters. Religious views on sexuality vary significantly between different religions and sects of the same religion, though there are common themes, such as prohibition of adultery. Reproductive sexual intercourse between non-human animals is more often called copulation , and sperm may be introduced into

5040-416: A sexual being, or a partner's discomfort or perceived discomfort. Temporary difficulties can arise with alcohol and sex , as alcohol can initially increase interest through disinhibition but decrease capacity with greater intake; however, disinhibition can vary depending on the culture. People with mental disabilities also are subject to challenges in participating in sexual intercourse. This can include

5220-468: A slightly increased risk of triggering a heart attack or sudden cardiac death when they engage in sexual intercourse or any vigorous physical exercise that is engaged in on a sporadic basis. Regular exercise reduces, but does not eliminate, the increased risk. Sexual intercourse, when involving a male participant, often ends when the male has ejaculated, and thus the partner might not have time to reach orgasm . In addition, premature ejaculation (PE)

5400-477: A starship that had been carrying extremely dangerous materials intended for disposal in a black hole. Since this story is set at a time before his decision to run for President of the Galaxy, he displays a noticeably different personality, exhibiting concern over the hazards posed by the cargo to himself, the crew, and living creatures in general. In both the radio and television versions of The Hitchhiker's Guide to

5580-429: A strong role in human bonding . In many societies, it is normal for couples to have sexual intercourse while using some method of birth control, sharing pleasure and strengthening their emotional bond through sexual activity even though they are deliberately avoiding pregnancy. In humans and bonobos , the female undergoes relatively concealed ovulation so that male and female partners commonly do not know whether she

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5760-522: A surgery. Obstacles that those with disabilities face with regard to engaging in sexual intercourse include pain, depression , fatigue, negative body image , stiffness, functional impairment, anxiety, reduced libido , hormonal imbalance, and drug treatment or side effects. Sexual functioning has been regularly identified as a neglected area of the quality of life in patients with rheumatoid arthritis . For those that must take opioids for pain control, sexual intercourse can become more difficult. Having

5940-578: A table of the first two batches of names approved by the WGSN, which included Betelgeuse for this star. It is now so entered in the IAU Catalog of Star Names . Betelgeuse and its red coloration have been noted since antiquity ; the classical astronomer Ptolemy described its color as ὑπόκιρρος ( hypókirrhos = more or less orange-tawny), a term later described by a translator of Ulugh Beg 's Zij-i Sultani as rubedo , Latin for "ruddiness". In

6120-468: A third estimate in the near-infrared corroborating the 2009 numbers, this time showing a limb-darkened disk diameter of 42.49 ± 0.06 mas . The near-infrared photospheric diameter of 43.33 mas at the Hipparcos distance of 152 ± 20 pc equates to about 3.4 AU or 730  R ☉ . A 2014 paper derives an angular diameter of 42.28 mas (equivalent to a 41.01 mas uniform disc) using H and K band observations made with

6300-402: A trigonometric parallax of 5 ± 4 mas , a distance of 200 pc or 650 ly . Given this uncertainty, researchers were adopting a wide range of distance estimates, leading to significant variances in the calculation of the star's attributes. The results from the Hipparcos mission were released in 1997. The measured parallax of Betelgeuse was 7.63 ± 1.64 mas , which equated to

6480-416: A variety of safe sex methods that are practiced by heterosexual and same-sex couples, including non-penetrative sex acts, and heterosexual couples may use oral or anal sex (or both) as a means of birth control. However, pregnancy can still occur with anal sex or other forms of sexual activity if the penis is near the vagina (such as during intercrural sex or other genital-genital rubbing ) and its sperm

6660-1071: Is delayed ejaculation , which can be caused as an unwanted side effect of antidepressant medications such as fluvoxamine ; however, all SSRIs have ejaculation-delaying effects, and fluvoxamine has the least ejaculation-delaying effects. Sexual intercourse often remains possible after major medical treatment of the reproductive organs and structures. This is especially true for women. Even after extensive gynecological surgical procedures (such as hysterectomy , oophorectomy , salpingectomy , dilation and curettage , hymenotomy , Bartholin gland surgery, abscess removal, vestibulectomy , labia minora reduction, cervical conization , surgical and radiological cancer treatments and chemotherapy), sexual intercourse can continue. Reconstructive surgery remains an option for women who have experienced benign and malignant conditions. Men and women who have underwent extensive surgery should consult their medical team to understand how their treatment or surgery affects sex and how long they should wait before having sexual intercourse after

6840-424: Is ejaculated through the penis into the vagina. The sperm passes through the vaginal vault , cervix and into the uterus , and then into the fallopian tubes . Millions of sperm are ejaculated to increase the chances of fertilization (see sperm competition ), but only one is sufficient to fertilize an egg or ovum . When a fertile ovum from the female is present in the fallopian tubes, the male gamete fertilizes

7020-483: Is "the most prevalent sexual behavior among men and women of all ages and ethnicities". Clint E. Bruess et al. stated that it "is the most frequently studied behavior" and is "often the focus of sexuality education programming for youth." Weiten et al. said that it "is the most widely endorsed and practiced sexual act in our society." Regarding oral or anal intercourse, the CDC stated in 2009, "Studies indicate that oral sex

7200-399: Is a red supergiant star in the constellation of Orion . It is usually the tenth-brightest star in the night sky and, after Rigel , the second-brightest in its constellation. It is a distinctly reddish, semiregular variable star whose apparent magnitude , varying between +0.0 and +1.6, has the widest range displayed by any first-magnitude star . Betelgeuse is the brightest star in

7380-444: Is a form of assisted reproductive technology , which are methods used to achieve pregnancy by artificial or partially artificial means. For artificial insemination, sperm donors may donate their sperm through a sperm bank , and the insemination is performed with the express intention of attempting to impregnate the female; to this extent, its purpose is the medical equivalent of sexual intercourse. ICI insemination, which involves

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7560-456: Is also known as vaginal intercourse or vaginal sex . Sexual penetration has been known by humans since the dawn of time, and has been an instinctive form of sexual behaviour and psychology among humans. Other forms of penetrative sexual intercourse include anal sex (penetration of the anus by the penis), oral sex (penetration of the mouth by the penis or oral penetration of the female genitalia ), fingering (sexual penetration by

7740-509: Is also not clear if timed intercourse has an effect on a person's level of stress or their quality of life. Studies have shown no significant difference between different sex positions and pregnancy rate, as long as it results in ejaculation into the vagina. When a sperm donor has sexual intercourse with a woman who is not his partner and for the sole purpose of impregnating the woman, this may be known as natural insemination , as opposed to artificial insemination . Artificial insemination

7920-547: Is also surrounded by a complex, asymmetric envelope , roughly 250 times the size of the star, caused by mass loss from the star itself. The Earth-observed angular diameter of Betelgeuse is exceeded only by those of R Doradus and the Sun. Starting in October 2019, Betelgeuse began to dim noticeably, and by mid-February 2020 its brightness had dropped by a factor of approximately 3, from magnitude 0.5 to 1.7. It then returned to

8100-532: Is at lower ages than that of women; this group includes south European and Latin cultures (Portugal, Greece and Romania are noted) and such from Latin America (Brazil, Chile , and the Dominican Republic ). The study considered many Asian societies to also fall into this group, although matching data was only available from Thailand . In the third group, age of men and women at sexual initiation

8280-600: Is because "although an estimated 15 percent to 20 percent of men experience difficulty controlling rapid ejaculation, most do not consider it a problem requiring help, and many women have difficulty expressing their sexual needs". The American Urological Association (AUA) estimates that premature ejaculation could affect 21 percent of men in the United States. For those whose impotence is caused by medical conditions, prescription drugs such as Viagra , Cialis , and Levitra are available. However, doctors caution against

8460-532: Is busy carrying out some grand scheme, has no clue as to what it is and is unable to do anything but follow the path that he laid out for himself. Zaphod's grand schemes have included, over time, a second-hand ballpoint pen business (which may or may not have been established with the help of Veet Voojagig ). He was forced to section off portions of both brains that stored the plan so that scans of his mind, which would be necessary for him to become president, would not reveal his plan, which included his being President of

8640-486: Is clear that the Hipparcos data still contain systematic errors of unknown origin." Although the radio data also have systematic errors, the Harper solution combines the datasets in the hope of mitigating such errors. An updated result from further observations with ALMA and e-Merlin gives a parallax of 4.51 ± 0.8 mas and a distance of 222 +34 −48 pc or 724 +111 −156 ly. In 2020, new observational data from

8820-411: Is common, and women often require a substantially longer duration of stimulation with a sexual partner than men do before reaching an orgasm. Scholars, such as Weiten et al., state that "many couples are locked into the idea that orgasms should be achieved only through intercourse [penile-vaginal sex]," that "the word foreplay suggests that any other form of sexual stimulation is merely preparation for

9000-502: Is commonly practiced by sexually active male-female and same-gender couples of various ages, including adolescents." Oral sex is significantly more common than anal sex. The 2010 NSSHB study reported that vaginal intercourse was practiced more than insertive anal intercourse among men, but that 13% to 15% of men aged 25 to 49 practiced insertive anal intercourse. Receptive anal intercourse was infrequent among men, with approximately 7% of men aged 14 to 94 years old having said that they were

9180-420: Is deposited near the vagina's entrance and travels along the vagina's lubricating fluids; the risk of pregnancy can also occur without the penis being near the vagina because sperm may be transported to the vaginal opening by the vagina coming in contact with fingers or other non-genital body parts that have come in contact with semen. Safe sex is a relevant harm reduction philosophy and condoms are used as

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9360-677: Is easy to find with the naked eye. It is one of three stars that make up the Winter Triangle asterism , and it marks the center of the Winter Hexagon . It can be seen rising in the east at the beginning of January of each year, just after sunset. Between mid-September and mid-March (best in mid-December), it is visible to virtually every inhabited region of the globe, except in Antarctica at latitudes south of 82°. In May (moderate northern latitudes) or June (southern latitudes),

9540-512: Is especially the case for men with a lower emotional and composite marital satisfaction. Other studies report that the lack of sexual intercourse does not significantly result in divorce, though it is commonly one of the various contributors to it. According to the 2010 National Survey of Sexual Health and Behavior (NSSHB), men whose most recent sexual encounter was with a relationship partner reported greater arousal, greater pleasure, fewer problems with erectile function, orgasm, and less pain during

9720-544: Is expected to end its evolution with a supernova explosion, most likely within 100,000 years. When Betelgeuse explodes, it will shine as bright as the half-Moon for more than three months; life on Earth will be unharmed. Having been ejected from its birthplace in the Orion OB1 association  – which includes the stars in Orion's Belt  – this runaway star has been observed to be moving through

9900-685: Is fertile at any given moment. One possible reason for this distinct biological feature may be formation of strong emotional bonds between sexual partners important for social interactions and, in the case of humans, long-term partnership rather than immediate sexual reproduction. Sexual dissatisfaction due to the lack of sexual intercourse is associated with increased risk of divorce and relationship dissolution, especially for men. Some research, however, indicates that general dissatisfaction with marriage for men results if their wives flirted with, erotically kissed or became romantically or sexually involved with another man ( infidelity ), and that this

10080-461: Is generally believed to be a variation in just a portion of the extended atmosphere around Betelgeuse, and observations at other wavelengths have shown an increase in diameter over a similar period. Sexual intercourse Sexual intercourse (also coitus or copulation ) is a sexual activity typically involving the insertion and thrusting of the male penis inside the female vagina for sexual pleasure , reproduction , or both. This

10260-411: Is generally considered to be a single isolated star and a runaway star , not currently associated with any cluster or star-forming region, although its birthplace is unclear. Two spectroscopic companions to Betelgeuse have been proposed. Analysis of polarization data from 1968 through 1983 indicated a close companion with a periodic orbit of about 2.1 years, and by using speckle interferometry ,

10440-602: Is involuntary tensing of the pelvic floor musculature, making coitus, or any form of penetration of the vagina, distressing, painful and sometimes impossible for women. It is a conditioned reflex of the pubococcygeus muscle, and is sometimes referred to as the PC muscle. Vaginismus can be hard to overcome because if a woman expects to experience pain during sexual intercourse, this can cause a muscle spasm, which results in painful sexual intercourse. Treatment of vaginismus often includes both psychological and behavioral techniques, including

10620-422: Is known under different ancient Latin names for a variety of sexual activities, but usually denotes penile–vaginal penetration. This is often called vaginal intercourse or vaginal sex. Vaginal sex, and less often vaginal intercourse , may also denote any vaginal sexual activity, particularly if penetrative , including sexual activity between lesbian couples . Copulation , by contrast, more often denotes

10800-568: Is less risky than vaginal or anal intercourse. Many times, STIs initially do not cause symptoms, increasing the risk of unknowingly passing the infection on to a sex partner or others. There are 19 million new cases of sexually transmitted infections every year in the U.S., and, in 2005, the World Health Organization (WHO) estimated that 448 million people aged 15–49 were infected per year with curable STIs (such as syphilis , gonorrhea and chlamydia ). Some STIs can cause

10980-530: Is listed in the General Catalogue of Variable Stars with a possible period of 2,335 days. More detailed analyses have shown a main period near 400 days, a short period of 185 days, and a longer secondary period around 2,100 days. The lowest reliably-recorded V-band magnitude of +1.614 was reported in February 2020. Radial pulsations of red supergiants are well-modelled and show that periods of

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11160-538: Is negligible, so the classical photosphere can be directly seen; in the mid-infrared the scattering increases once more, causing the thermal emission of the warm atmosphere to increase the apparent diameter. Studies with the IOTA and VLTI published in 2009 brought strong support to the idea of dust shells and a molecular shell (MOLsphere) around Betelgeuse, and yielded diameters ranging from 42.57 to 44.28 mas with comparatively insignificant margins of error. In 2011,

11340-736: Is no data on Betelgeuse in Gaia Data Release 2 , which was released in 2018. Betelgeuse is classified as a semiregular variable star , indicating that some periodicity is noticeable in the brightness changes, but amplitudes may vary, cycles may have different lengths, and there may be standstills or periods of irregularity. It is placed in subgroup SRc; these are pulsating red supergiants with amplitudes around one magnitude and periods from tens to hundreds of days. Betelgeuse typically shows only small brightness changes near to magnitude +0.5, although at its extremes it can become as bright as magnitude 0.0 or as faint as magnitude +1.6. Betelgeuse

11520-568: Is not heard in the film itself. Zaphod is the inventor of the Pan-Galactic Gargle Blaster , a fictional cocktail based on Janx Spirit. The series describes the drink as "the alcoholic equivalent of a mugging – expensive and bad for the head" and states that the effect of one "is like having your brain smashed out by a slice of lemon wrapped round a large gold brick". In the television series, two Gargle Blaster drinkers collapse in open-eyed unconsciousness after drinking while

11700-637: Is often based on penile–vaginal intercourse is because heterosexual couples may engage in anal or oral sex as a way of being sexually active while maintaining that they are virgins since they have not engaged in the reproductive act of coitus. Some gay men consider frot or oral sex as a way of maintaining their virginities, with penile-anal penetration used as sexual intercourse and for virginity loss, while other gay men may consider frot or oral sex as their main forms of sexual activity. Lesbians may categorize oral sex or fingering as sexual intercourse and subsequently an act of virginity loss, or tribadism as

11880-492: Is often extra-marital; the study considered the Indian subcontinent to also fall into this group, though data was only available from Nepal . In the second group, the data indicated families encouraged daughters to delay marriage, and to abstain from sexual activity before that time. However, sons are encouraged to gain experience with older women or prostitutes before marriage. Age of men at sexual initiation in these societies

12060-409: Is possible at any time of the menstrual cycle for women. Sex pheromones facilitate copulatory reflexes in various organisms, but, in humans , the detection of pheromones is impaired and they have only residual effects. Non-primate females put themselves in the crucial lordosis position and remain motionless, but these motor copulatory reflexes are no longer functional in women. During coitus,

12240-453: Is possible that individuals who engage in oral sex, but do not consider it as 'sex', may not associate the acts with the potential health risks they can bring." In other cases, condom use is a factor, with some men stating that sexual activity involving the protection of a condom is not "real sex" or "the real thing". This view is common among men in Africa, where sexual activity involving

12420-469: Is proposed that this is due to granulation , similar to the same effect on the sun but on a much larger scale. On 13 December 1920, Betelgeuse became the first star outside the Solar System to have the angular size of its photosphere measured. Although interferometry was still in its infancy, the experiment proved a success. The researchers, using a uniform disk model, determined that Betelgeuse had

12600-451: Is significantly less research on behaviors with regard to condom use for anal and oral sex. The most effective way to avoid sexually transmitted infections is to abstain from sexual intercourse, especially vaginal, anal, and oral sexual intercourse. Decisions and options concerning birth control can be affected by cultural reasons, such as religion, gender roles or folklore . In the predominantly Catholic countries Ireland, Italy, and

12780-401: Is subject to multiple cycles of increasing and decreasing brightness due to changes in its size and temperature. The astronomers who first noted the dimming of Betelgeuse, Villanova University astronomers Richard Wasatonic and Edward Guinan , and amateur Thomas Calderwood, theorize that a coincidence of a normal 5.9 year light-cycle minimum and a deeper-than-normal 425 day period are

12960-453: Is very difficult" and that this is "because most sexually active individuals practice oral sex in addition to other forms of sex, such as vaginal or anal sex, when transmission occurs, it is difficult to determine whether it occurred as a result of oral sex or other more risky sexual activities". They added that "several co-factors may increase the risk of HIV transmission through oral sex"; this includes ulcers, bleeding gums , genital sores, and

13140-512: The American Association of Variable Star Observers (AAVSO) show a maximum brightness of 0.2 in 1933 and 1942, and a minimum of 1.2, observed in 1927 and 1941. This variability in brightness may explain why Johann Bayer , with the publication of his Uranometria in 1603, designated the star alpha , as it probably rivaled the usually brighter Rigel ( beta ). From Arctic latitudes, Betelgeuse's red colour and higher location in

13320-547: The Big One " by Eccentrica Gallumbits , and as "one hoopy frood" by others. In the seventh episode of the original radio series , the narrator describes Beeblebrox as being the "owner of the hippest place in the universe" (his own left cranium), as voted on in a poll of the readers of the fictional magazine Playbeing . He was briefly the President of the Galaxy (a role that involves no power whatsoever, and merely requires

13500-487: The Cavendish Astrophysics Group , the new technique employed a small mask with several holes in the telescope pupil plane, converting the aperture into an ad hoc interferometric array. The technique contributed some of the most accurate measurements of Betelgeuse while revealing bright spots on the star's photosphere. These were the first optical and infrared images of a stellar disk other than

13680-557: The European Space Agency 's current Gaia mission was not expected to produce good results for stars brighter than the approximately V=6 saturation limit of the mission's instruments, actual operation has shown good performance on objects to about magnitude +3. Forced observations of brighter stars mean that final results should be available for all bright stars and a parallax for Betelgeuse will be published an order of magnitude more accurate than currently available. There

13860-536: The Heart of Gold ' s medical bay, "clever, imaginative, irresponsible, untrustworthy, extrovert, nothing you couldn't have guessed" ( Ultimate Hitchhiker's Guide , page 98). In the movie, however, he is not very bright, and perhaps even more boorish than his previous portrayals. He is portrayed as a vacuous California surfer -type, and Sam Rockwell , the actor who played him in the film, cited Bill Clinton , Elvis Presley and George W. Bush as influences. Zaphod in

14040-487: The Sun , taken first from ground-based interferometers and later from higher-resolution observations of the COAST telescope . The "bright patches" or "hotspots" observed with these instruments appeared to corroborate a theory put forth by Schwarzschild decades earlier of massive convection cells dominating the stellar surface. In 1995, the Hubble Space Telescope 's Faint Object Camera captured an ultraviolet image with

14220-469: The Very Large Array (VLA) produced a radio solution of 5.07 ± 1.10 mas , equaling a distance of 197 ± 45 pc or 643 ± 146 ly . As the researcher, Harper, points out: "The revised Hipparcos parallax leads to a larger distance ( 152 ± 20 pc ) than the original; however, the astrometric solution still requires a significant cosmic noise of 2.4 mas. Given these results it

14400-477: The interstellar medium at a speed of 30 km/s , creating a bow shock over four light-years wide. Betelgeuse became the first extrasolar star whose photosphere 's angular size was measured in 1920, and subsequent studies have reported an angular diameter (i.e., apparent size) ranging from 0.042 to 0.056 arcseconds ; that range of determinations is ascribed to non-sphericity, limb darkening , pulsations and varying appearance at different wavelengths . It

14580-837: The mating process, especially for non-human animals; it can mean a variety of sexual activities between opposite-sex or same-sex pairings , but generally means the sexually reproductive act of transferring sperm from a male to a female or sexual procreation between a man and a woman. Although sex and having sex also most commonly denote penile–vaginal intercourse, sex can be significantly broad in its meaning and may cover any penetrative or non-penetrative sexual activity between two or more people. The World Health Organization (WHO) states that non-English languages and cultures use different words for sexual activity, "with slightly different meanings". Various vulgarisms , slang , and euphemisms are used for sexual intercourse or other sexual activity, such as fuck , screw , shag , and

14760-407: The woman on top position or the coital alignment technique , a technique combining the "riding high" variation of the missionary position with pressure-counterpressure movements performed by each partner in rhythm with sexual penetration, to maximize clitoral stimulation. Anal sex involves stimulation of the anus , anal cavity, sphincter valve or rectum ; it most commonly means the insertion of

14940-736: The "widespread, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question [about sexual activity] matches what the researcher had in mind'". This focus can also relegate other forms of mutual sexual activity to foreplay or contribute to them not being regarded as "real sex", and limits the meaning of rape . It may also be that conceptually conflating sexual activity with vaginal intercourse and sexual function hinders and limits information about sexual behavior that non-heterosexual people may be engaging in, or information about heterosexuals who may be engaging in non–vaginal sexual activity. Studies regarding

15120-468: The 'main event'" and that "because women reach orgasm through intercourse less consistently than men," they are likelier than men to fake an orgasm to satisfy their sexual partners. In 1991, scholars from the Kinsey Institute stated, "The truth is that the time between penetration and ejaculation varies not only from man to man, but from one time to the next for the same man." They added that

15300-619: The 19th century, before modern systems of stellar classification , Angelo Secchi included Betelgeuse as one of the prototypes for his Class III (orange to red) stars. Three centuries before Ptolemy, in contrast, Chinese astronomers observed Betelgeuse as yellow ; Such an observation, if accurate, could suggest the star was in a yellow supergiant phase around this time, a credible possibility, given current research into these stars' complex circumstellar environment. Aboriginal groups in South Australia have shared oral tales of

15480-564: The Earth orbits the Sun, every star is seen to shift by a fraction of an arc second, which measure, combined with the baseline provided by the Earth's orbit gives the distance to that star. Since the first successful parallax measurement by Friedrich Bessel in 1838, astronomers have been puzzled by Betelgeuse's apparent distance. Knowledge of the star's distance improves the accuracy of other stellar parameters, such as luminosity that, when combined with an angular diameter, can be used to calculate

15660-633: The End of the Universe , the ghost of Zaphod's great-grandfather also has two heads. This and other information presented in the narrative prose seem to indicate that having two heads is a common – possibly even universal – trait of Zaphod's species. For the 2005 film, it is hinted that Zaphod "created" the second head himself when shutting off the parts of his mind that contain portions of his personality that "are not presidential", but he wanted to keep these traits, so he hid his second head under his neck and wears

15840-547: The European name. In English, there are four common pronunciations of this name, depending on whether the first e is pronounced short or long and whether the s is pronounced /s/ or /z/ : In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalog and standardize proper names for stars. The WGSN's first bulletin, issued July 2016, included

16020-487: The French Institut national d'études démographiques conducted a cross-cultural study titled "At what age do women and men have their first sexual intercourse?" In the first group of the contemporary cultures he studied, which included sub-Saharan Africa (listing Mali , Senegal and Ethiopia ), the data indicated that the age of men at sexual initiation in these societies is at later ages than that of women, but

16200-494: The Galaxy Zaphod was played by Mark Wing-Davey . The jokes about Zaphod having two heads and more than two arms were written for the original radio version, where the details could be filled in by the listener's imagination. In the television version Wing-Davey wore a false arm (when the arm was required to gesture it was replaced by the arm of Mike Kelt , designer of the animatronic head, standing behind Wing-Davey), and

16380-414: The Galaxy and subsequently stealing the prototype Infinite Improbability Drive starship. However, in his altered state of mind he follows the path he left only reluctantly and very much wishes to go off and lie on beaches rather than see the scheme through. In the second radio series and the book version of The Restaurant at the End of the Universe , we learn (and so does Zaphod) that the object of his plan

16560-534: The Hitchhiker's series, in which it is implied Zaphod's third arm may have originally been grown so that he would have one hand for each of Eccentrica Galumbits's breasts. In Infocom 's text adventure game version of the story, Zaphod blends in on Earth by hiding his second head in a covered bird cage (an alternate Trillian also refers to this in Mostly Harmless ). In the novel The Restaurant at

16740-793: The Philippines, fertility awareness and the rhythm method are emphasized while disapproval is expressed with regard to other contraceptive methods. Worldwide, sterilization is a more common birth control method, and use of the intrauterine device (IUD) is the most common and effective way of reversible contraception. Conception and contraception are additionally a life-and-death situation in developing countries , where one in three women give birth before age 20; however, 90% of unsafe abortions in these countries could be prevented by effective contraception use. The National Survey of Sexual Health and Behavior (NSSHB) indicated in 2010 that "1 of 4 acts of vaginal intercourse are condom-protected in

16920-508: The Solar System for comparison, the orbit of Mars is about 1.5 AU , Ceres in the asteroid belt 2.7 AU , Jupiter 5.5 AU —so, assuming Betelgeuse occupying the place of the Sun, its photosphere might extend beyond the Jovian orbit, not quite reaching Saturn at 9.5 AU . The precise diameter has been hard to define for several reasons: The generally reported radii of large cool stars are Rosseland radii , defined as

17100-431: The Sun is below the horizon). Betelgeuse is a variable star whose visual magnitude ranges between 0.0 and +1.6 . There are periods during which it surpasses Rigel to become the sixth brightest star, and occasionally it will become even brighter than Capella . At its faintest, Betelgeuse can fall behind Deneb and Beta Crucis , themselves both slightly variable, to be the twentieth-brightest star. Betelgeuse has

17280-637: The U.S. (1 in 3 among singles)," that "condom use is higher among black and Hispanic Americans than among white Americans and those from other racial groups," and that "adults using a condom for intercourse were just as likely to rate the sexual extent positively in terms of arousal, pleasure and orgasm than when having intercourse without one". Penile–vaginal penetration is the most common form of sexual intercourse. Studies indicate that most heterosexual couples engage in vaginal intercourse nearly every sexual encounter. The National Survey of Sexual Health and Behavior (NSSHB) reported in 2010 that vaginal intercourse

17460-641: The VLTI AMBER instrument. In 2009 it was announced that the radius of Betelgeuse had shrunk from 1993 to 2009 by 15%, with the 2008 angular measurement equal to 47.0 mas . Unlike most earlier papers, this study used measurements at one specific wavelength over 15 years. The diminution in Betelgeuse's apparent size equates to a range of values between 56.0 ± 0.1 mas seen in 1993 to 47.0 ± 0.1 mas seen in 2008—a contraction of almost 0.9 AU in 15 years . The observed contraction

17640-610: The Vortex. His brain-care specialist, Gag Halfrunt, also said, "Vell, Zaphod's just zis guy, you know?" He used his position as President of the Galaxy to steal the Heart of Gold , a spaceship taking advantage of Infinite Improbability Drive, at its unveiling. Early in Zaphod's career (whilst heading The Beeblebrox Salvage and Really Wild Stuff Corporation ) he joined forces with the Safety and Civil Reassurance Administration to investigate

17820-456: The appropriate length for sexual intercourse is the length of time it takes for both partners to be mutually satisfied, emphasizing that Kinsey "found that 75 percent of men ejaculated within two minutes of penetration. But he didn't ask if the men or their partners considered two minutes mutually satisfying" and "more recent research reports slightly longer times for intercourse". A 2008 survey of Canadian and American sex therapists stated that

18000-405: The average time for heterosexual intercourse (coitus) was 7 minutes and that 1 to 2 minutes was too short, 3 to 7 minutes was adequate and 7 to 13 minutes desirable, while 10 to 30 minutes was too long. Anorgasmia is regular difficulty reaching orgasm after ample sexual stimulation, causing personal distress. This is significantly more common in women than in men, which has been attributed to

18180-608: The body's production of antibodies and subsequent lower blood pressure , and decreased risk of prostate cancer . Sexual intimacy and orgasms increase levels of the hormone oxytocin (also known as "the love hormone"), which can help people bond and build trust. Oxytocin is believed to have a more significant impact on women than on men, which may be why women associate sexual attraction or sexual activity with romance and love more than men do. A long-term study of 3,500 people between ages 18 and 102 by clinical neuropsychologist David Weeks indicated that, based on impartial ratings of

18360-408: The books and radio series, he is nevertheless quite charismatic which causes many characters to ignore his other flaws. Douglas Adams claimed that he based Zaphod on an old friend of his from Cambridge University called Johnny Simpson, who "had that nervous sort of hyperenergetic way of trying to appear relaxed." In (at least) the books, he is, according to screening tests that he ran on himself in

18540-552: The centre of attention wherever he goes. In the television series, he wears the same outfit throughout each of the episodes; however, in the film, his clothes, their style and their colour scheme change several times. Zaphod invented the Pan Galactic Gargle Blaster . He was voted "Worst Dressed Sentient Being in the Known Universe" seven consecutive times. He's been described as "the best Bang since

18720-483: The character has two penises. Special padding was thus arranged, though the first attempt was deemed to be "too long" and was "cut back" for the final version. This was referenced in the film version when Arthur Dent says to Trillian "So, two heads is what does it for a girl?...Anything else he's got two of?" Zaphod is played by Sam Rockwell in the film version of the story that was released in April 2005. In that version, his second head occasionally pops out to express

18900-692: The character in video games and other media, some of the more notable examples are: The head male meerkat on the Animal Planet television series Meerkat Manor was named after him. In the Mac game Escape Velocity , there is a planet called Beeblebrox in the Zaphod system. Upon landing, the planet has the description "Beeblebrox is a wild world, a world of wild parties and wild people. If you have two heads, three arms, and an ego problem, don't travel to Beeblebrox; you will be laughed at and considered boring and unoriginal." A multi-monitor setup featuring

19080-405: The complex circumstellar shells surrounding the supergiant, causing them to suspect the presence of huge gas bubbles resulting from convection. However, it was not until the late 1980s and early 1990s, when Betelgeuse became a regular target for aperture masking interferometry , that breakthroughs occurred in visible-light and infrared imaging . Pioneered by J.E. Baldwin and colleagues of

19260-485: The deposit of (usually) raw semen in the vagina of a woman, is in effect a substitute for intercourse and is often contrasted with 'normal intercourse' in this context. Reproductive methods also extend to gay and lesbian couples. For gay male pairings, there is the option of surrogate pregnancy; for lesbian couples, there is donor insemination in addition to choosing surrogate pregnancy. Some women use artificial insemination to become single mothers by choice . There are

19440-415: The digital manipulation of the clitoris, rest of the vulva , vagina or anus for the purpose of sexual arousal and sexual stimulation; it may constitute the entire sexual encounter or it may be part of mutual masturbation, foreplay or other sexual activities. Natural human reproduction involves penile–vaginal penetration, during which semen , containing male gametes known as sperm cells or spermatozoa,

19620-479: The dimming could have come from a short-term minimum coinciding with a long-term minimum producing a grand minimum, a 416-day cycle and 2010 day cycle respectively, a mechanism first suggested by astronomer L. Goldberg . In April 2023, astronomers reported the star reached a peak of 0.0 visual and 0.1 V-band magnitude. As a result of its distinctive orange-red color and position within Orion, Betelgeuse

19800-410: The disease , and patients can enjoy healthy and productive lives. In cases where infection is suspected, early medical intervention is highly beneficial in all cases. The CDC stated "the risk of HIV transmission from an infected partner through oral sex is much less than the risk of HIV transmission from anal or vaginal sex," but that "measuring the exact risk of HIV transmission as a result of oral sex

19980-510: The disorder, estimates for the prevalence of premature ejaculation vary significantly more than for erectile dysfunction. For example, the Mayo Clinic states, "Estimates vary, but as many as 1 out of 3 men may be affected by [premature ejaculation] at some time." Further, "Masters and Johnson speculated that premature ejaculation is the most common sexual dysfunction, even though more men seek therapy for erectile difficulties" and that this

20160-573: The distance of Betelgeuse, with proposed distances as high as 400 pc or about 1,300 ly . Before the publication of the Hipparcos Catalogue (1997), there were two slightly conflicting parallax measurements for Betelgeuse. The first, in 1991, gave a parallax of 9.8 ± 4.7  mas , yielding a distance of roughly 102 pc or 330 ly . The second was the Hipparcos Input Catalogue (1993) with

20340-536: The drink have been made available at some stage shows of The Hitchhiker's Guide to the Galaxy , as well as bars such as Zaphod Beeblebrox in Ottawa, Ontario, Canada. In an interview, Douglas Adams stated that there are a number of environmental and weapons treaties, as well as laws of physics, which prevent the Pan Galactic Gargle Blaster from being mixed on Earth. There are many references to

20520-453: The driving factors. Other possible causes hypothesized by late 2019 were an eruption of gas or dust or fluctuations in the star's surface brightness. By August 2020, long-term and extensive studies of Betelgeuse, primarily using ultraviolet observations by the Hubble Space Telescope , had suggested that the unexpected dimming was probably caused by an immense amount of superhot material ejected into space. The material cooled and formed

20700-419: The electromagnetic spectrum—the visible, near-infrared ( NIR ), mid-infrared (MIR), or radio—produce very different angular measurements. In 1996, Betelgeuse was shown to have a uniform disk of 56.6 ± 1.0 mas . In 2000, a Space Sciences Laboratory team measured a diameter of 54.7 ± 0.3 mas , ignoring any possible contribution from hotspots, which are less noticeable in the mid-infrared. Also included

20880-529: The epidemic. Of the 2.7 million new HIV infections estimated to occur worldwide in 2010, 1.9 million (70%) were in Africa . The World Health Organization also stated that the "estimated 1.2 million Africans who died of HIV-related illnesses in 2010 comprised 69% of the global total of 1.8 million deaths attributable to the epidemic." It is diagnosed by blood tests , and while no cure has been found, it can be controlled by management through antiretroviral drugs for

21060-456: The existence of surrounding dust and gas shells would give a diameter of 41.9 mas . To overcome these challenges, researchers have employed various solutions. Astronomical interferometry, first conceived by Hippolyte Fizeau in 1868, was the seminal concept that has enabled major improvements in modern telescopy and led to the creation of the Michelson interferometer in the 1880s, and

21240-452: The expression of a gene transcription factor called ΔFosB (delta FosB) in the brain's reward center ; consequently excessively frequent engagement in sexual activity on a regular (daily) basis can lead to the overexpression of ΔFosB, inducing an addiction to sexual activity. Sexual addiction or hypersexuality is often considered an impulse control disorder or a behavioral addiction. It has been linked to atypical levels of dopamine,

21420-454: The extra appendages differs between versions. The original radio version never explained the second head, but did explain that Zaphod "grew" the third arm in the six months between meeting the character of Trillian on Earth, and the start of the series. The third radio series implies that he had a third arm when growing up – the fifth has him offer to Trillian that "I'd grow my third arm back for you, baby", when they first meet. In

21600-550: The female is in estrus, and to engage in sex acts with same-sex partners . Like humans engaging in sexual activity primarily for pleasure, this behavior in these animals is also presumed to be for pleasure, and a contributing factor to strengthening their social bonds. Sexual intercourse may be called coitus , copulation , coition , or intercourse . Coitus is derived from the Latin word coitio or coire , meaning "a coming together or joining together" or "to go together", and

21780-431: The female's reproductive tract in non-vaginal ways among the animals, such as by cloacal copulation. For most non-human mammals , mating and copulation occur at the point of estrus (the most fertile period of time in the female's reproductive cycle), which increases the chances of successful impregnation . However, bonobos , dolphins and chimpanzees are known to engage in sexual intercourse regardless of whether

21960-448: The fertile window, a practice that is sometimes called 'timed intercourse'. Timed intercourse using urine tests that predict ovulation may help improve the rate of pregnancy and live births for some couples trying to conceive such as those who have been trying for less than 12-months and who are under 40 years old, however, it is not clear from medical evidence if timed intercourse improves the rate of ultra-sound confirmed pregnancies and it

22140-474: The film is very much immature (in contrast to the books where he was immature, but had a lot of power and was smart and devious), acting very eager about everything, eating messily with his hands, throwing temper tantrums, and doing things without reason, such as pressing the Improbability Drive button just because it was large and shiny. Throughout the book and radio versions of the story, Zaphod

22320-477: The fingers) and penetration by use of a dildo (especially a strap-on dildo ), and vibrators . These activities involve physical intimacy between two or more people and are usually used among humans solely for physical or emotional pleasure. They can contribute to human bonding . There are different views on what constitutes sexual intercourse or other sexual activity, which can impact on views of sexual health . Although sexual intercourse , particularly

22500-490: The first successful measurement of Betelgeuse. Just as human depth perception increases when two eyes instead of one perceive an object, Fizeau proposed the observation of stars through two apertures instead of one to obtain interferences that would furnish information on the star's spatial intensity distribution. The science evolved quickly and multiple-aperture interferometers are now used to capture speckled images , which are synthesized using Fourier analysis to produce

22680-531: The ground between May and August because it is too close to the Sun. Before entering its 2020 conjunction with the Sun, Betelgeuse had reached a brightness of +0.4 . Observations with the STEREO-A spacecraft made in June and July 2020 showed that the star had dimmed by 0.5 since the last ground-based observation in April. This is surprising, because a maximum was expected for August/September 2020, and

22860-454: The idea of a second head better than he liked her, and swapping her for a reproduction of his original head. And Another Thing... is also the only book in the series in which Zaphod has only one head. His left head is said to have been removed so that 'Left Brain' (or 'LB') can function as the new computer of the Heart of Gold. Zaphod wears unique clothing that contains a mixture of bright and contrasting colours to make him stand out and be

23040-556: The incumbent to attract attention so no one wonders who's really in charge, a role for which Zaphod was perfectly suited). He is the only man to have survived the Total Perspective Vortex, though it was established (in the books and first two radio series) that he survived only because he was in an Electronically Synthesised Universe created especially for him, thus making him the most important being in that universe and thus uniquely equipped to survive its version of

23220-645: The lack of sex education with regard to women's bodies, especially in sex-negative cultures, such as clitoral stimulation usually being key for women to orgasm. The physical structure of coitus favors penile stimulation over clitoral stimulation; the location of the clitoris then usually necessitates manual or oral stimulation in order for the woman to achieve orgasm. Approximately 25% of women report difficulties with orgasm, 10% of women have never had an orgasm, and 40% or 40–50% have either complained about sexual dissatisfaction or experienced difficulty becoming sexually aroused at some point in their lives. Vaginismus

23400-473: The lack of a knowledgeable healthcare provider trained and experienced in counseling those with intellectual disabilities on sexual intercourse. Those with intellectual disabilities may have hesitations regarding the discussion of the topic of sex, a lack of sexual knowledge and limited opportunities for sex education. In addition there are other barriers such as a higher prevalence of sexual abuse and assault. These crimes often remain underreported. There remains

23580-502: The loss of the Starship Billion Year Bunker , on which were stored compounds so powerful a teaspoonful could blow up/infect/irradiate a whole planet, and by-products of The Sirius Cybernetics Corporation synthetic personalities programme. As a character, Zaphod is hedonistic and irresponsible, self-centered almost to the point of solipsism , and often extremely insensitive to the feelings of those around him. In

23760-621: The meaning of sexual intercourse sometimes come into conflict. While most consider penile–vaginal intercourse to be sex, whether anal or oral intercourse are considered sex is more debatable, with oral sex ranking lowest. The Centers for Disease Control and Prevention (CDC) stated that "although there are only limited national data about how often adolescents engage in oral sex, some data suggest that many adolescents who engage in oral sex do not consider it to be 'sex'; therefore they may use oral sex as an option to experience sex while still, in their minds, remaining abstinent". Upton et al. stated, "It

23940-486: The most likely explanation for the dimming of the star. A study that uses observations at submillimetre wavelengths rules out significant contributions from dust absorption. Instead, large starspots appear to be the cause for the dimming. Followup studies, reported on 31 March 2020 in The Astronomer's Telegram , found a rapid rise in the brightness of Betelgeuse. Betelgeuse is almost unobservable from

24120-401: The most likely solution for Betelgeuse's 2170-day secondary periodicity, fluctuating radial velocity, moderate radius and low variation in effective temperature. The candidate companion would have a semi-major axis of 8.60 ± 0.33 AU . Parallax is the apparent change of the position of an object, measured in seconds of arc, caused by the change of position of the observer of that object. As

24300-449: The next minimum should occur around April 2021. However Betelgeuse's brightness is known to vary irregularly, making predictions difficult. The fading could indicate that another dimming event might occur much earlier than expected. On 30 August 2020, astronomers reported the detection of a second dust cloud emitted from Betelgeuse, and associated with recent substantial dimming (a secondary minimum on 3 August) in luminosity of

24480-474: The night sky at near-infrared wavelengths. Its Bayer designation is α Orionis , Latinised to Alpha Orionis and abbreviated Alpha Ori or α Ori . With a radius between 640 and 764 times that of the Sun, if it were at the center of our Solar System , its surface would lie beyond the asteroid belt and it would engulf the orbits of Mercury , Venus , Earth , and Mars . Calculations of Betelgeuse's mass range from slightly under ten to

24660-571: The novel, he said the third arm was "recently ... fitted just beneath his right one to help improve his ski-boxing." According to the original Hitchhiker's radio series script book, an ad libbed comment by Mark Wing-Davey in the eighth radio episode ("Put it there, and there, and there, and there! Whoa!") would suggest that Zaphod had grown a fourth arm. In the television series, Ford Prefect simply remarks to Zaphod that "the extra arm suits you." Eoin Colfer wrote and published an official 6th book for

24840-569: The ovum, forming a new embryo . Pregnancy begins after the fertilized ovum is implanted in the lining of the uterus (the endometrium ). Pregnancy rates for sexual intercourse are highest during the menstrual cycle time from some five days before until approximately one day after ovulation (this is sometimes called the fertile window ). For optimal pregnancy chance, there are recommendations of vaginal intercourse every one or two days, or every two or three days. Some people who are trying to conceive may choose to time vaginal intercourse with

25020-618: The partners orient their hips to allow the penis to move back and forth in the vagina to cause friction, typically without fully removing the penis. In this way, they stimulate themselves and each other, often continuing until orgasm in either or both partners is achieved. For human females, stimulation of the clitoris plays a significant role in sexual activity; 70–80% of women require direct clitoral stimulation to achieve orgasm, though indirect clitoral stimulation (for example, via vaginal intercourse) may also be sufficient (see orgasm in females ). Because of this, some couples may engage in

25200-402: The parts of his personality that are (as the main head puts it) "less than Presidential." Rockwell performed Zaphod as a blend of Vince Vaughn and Elvis taking additional influence from George W. Bush and Bill Clinton among others. The Illustrated Hitchhiker's Guide to the Galaxy has him portrayed by Francis Johnson. When Mark Wing-Davey 's academic commitments prevented him resuming

25380-506: The photosphere. Betelgeuse is the brightest near-infrared source in the sky with a J band magnitude of −2.99; only about 13% of the star's radiant energy is emitted as visible light. If human eyes were sensitive to radiation at all wavelengths, Betelgeuse would appear as the brightest star in the night sky. Catalogues list up to nine faint visual companions to Betelgeuse. They are at distances of about one to four arc-minutes and all are fainter than 10th magnitude. Betelgeuse

25560-698: The phrase "sleep together". The laws of some countries use the euphemism, carnal knowledge . Penetration of the vagina by the erect penis is additionally known as intromission , or by the Latin name immissio penis (Latin for "insertion of the penis"). The age of first sexual intercourse is called sexarche . Vaginal, anal and oral sex are recognized as sexual intercourse more often than other sexual behaviors. Sexual activity that does not involve penile-vaginal sex or other sexual penetration might be used to retain virginity (sometimes called technical virginity ) or labeled outercourse . One reason virginity loss

25740-488: The physical radius and effective temperature ; luminosity and isotopic abundances can also be used to estimate the stellar age and mass . When the first interferometric studies were performed on the star's diameter in 1920, the assumed parallax was 0.0180 ″ . This equated to a distance of 56  pc or roughly 180  ly , producing not only an inaccurate radius for the star but every other stellar characteristic. Since then, there has been ongoing work to measure

25920-401: The possibility of a close companion contributing to the overall flux has never been fully ruled out. High-resolution interferometry of Betelgeuse and its vicinity, far beyond the technology of the 1980s and 1990s, has not detected any companions. A more recent study found that a not yet directly-observed, dust-modulating stellar-mass companion of 1.17 ± 0.7   M ☉ would be

26100-445: The presence of other STIs. In 2005, the World Health Organization estimated that 123 million women become pregnant worldwide each year, and around 87 million of those pregnancies or 70.7% are unintentional. Approximately 46 million pregnancies per year reportedly end in induced abortion . Approximately 6 million U.S. women become pregnant per year. Out of known pregnancies, two-thirds result in live births and roughly 25% in abortions;

26280-547: The process by which mass is lost remains a mystery. With advances in interferometric methodologies, astronomers may be close to resolving this conundrum. Images released by the European Southern Observatory in July 2009, taken by the ground-based Very Large Telescope Interferometer (VLTI), showed a vast plume of gas extending 30 AU from the star into the surrounding atmosphere. This mass ejection

26460-403: The protection of a condom is often associated with emasculation because condoms prevent direct penile–to–skin genital contact. Sexual intercourse or other sexual activity can encompass various sexually stimulating factors ( physiological stimulation or psychological stimulation ), including different sex positions (such as the missionary position , the most common human sex position ) or

26640-444: The radius of the photosphere at a specific optical depth of two-thirds. This corresponds to the radius calculated from the effective temperature and bolometric luminosity. The Rosseland radius differs from directly measured radii, with corrections for limb darkening and the observation wavelength. For example, a measured angular diameter of 55.6 mas would correspond to a Rosseland mean diameter of 56.2 mas, while further corrections for

26820-404: The ratio of the fundamental to overtone periods gives valuable information about the internal structure of the star and its age. The source of the long secondary periods is unknown, but they cannot be explained by radial pulsations . Interferometric observations of Betelgeuse have shown hotspots that are thought to be created by massive convection cells, a significant fraction of the diameter of

27000-493: The red supergiant can be seen briefly on the western horizon after sunset, reappearing again a few months later on the eastern horizon before sunrise. In the intermediate period (June–July, centered around mid June), it is invisible to the naked eye (visible only with a telescope in daylight), except around midday low in the north in Antarctic regions between 70° and 80° south latitude (during midday twilight in polar night , when

27180-564: The remainder end in miscarriage. However, many more women become pregnant and miscarry without even realizing it, instead mistaking the miscarriage for an unusually heavy menstruation . The U.S. teenage pregnancy rate fell by 27 percent between 1990 and 2000, from 116.3 pregnancies per 1,000 girls aged 15–19 to 84.5. This data includes live births, abortions, and fetal losses. Almost 1 million American teenage women, 10% of all women aged 15–19 and 19% of those who report having had intercourse, become pregnant each year. Sexual activity can increase

27360-540: The role of Zaphod for the 2013 tour of " The Hitchhiker's Guide to the Galaxy Live Radio Show", comedian, songwriter and author Mitch Benn was cast in the part. To coincide with the April 2005 release of The Hitchhiker's Guide to the Galaxy film, a "campaign music video" was released on the Internet. The music, "Beeblebrox for President" by Joby Talbot , comes from the film's soundtrack, though it

27540-457: The sky than Rigel meant the Inuit regarded it as brighter, and one local name was Ulluriajjuaq ("large star"). In 1920, Albert A. Michelson and Francis G. Pease mounted a six-meter interferometer on the front of the 2.5-meter telescope at Mount Wilson Observatory , helped by John August Anderson . The trio measured the angular diameter of Betelgeuse at 0.047 ″ , a figure that resulted in

27720-605: The solar atmosphere. Astronomers saw some major advances in astronomical imaging technology in the 1970s, beginning with Antoine Labeyrie 's invention of speckle interferometry , a process that significantly reduced the blurring effect caused by astronomical seeing . It increased the optical resolution of ground-based telescopes , allowing for more precise measurements of Betelgeuse's photosphere. With improvements in infrared telescopy atop Mount Wilson , Mount Locke , and Mauna Kea in Hawaii, astrophysicists began peering into

27900-422: The song "Streets of Love" in the club in 2005. The venue closed on 14 May 2017. Species named after Zaphod are the viviparous brotula Bidenichthys beeblebroxi (described in 1995) and the fungus moth Erechthias beeblebroxi (named in 1993). They both have a remarkable color pattern resembling a second head, which presumably helps to confuse would-be predators . Mathematician Andrew Granville published

28080-517: The southwestern quadrant 2,000  K hotter than the stellar surface. Subsequent ultraviolet spectra taken with the Goddard High Resolution Spectrograph suggested that the hot spot was one of Betelgeuse's poles of rotation. This would give the rotational axis an inclination of about 20° to the direction of Earth, and a position angle from celestial North of about 55°. In a study published in December 2000,

28260-475: The space-based Solar Mass Ejection Imager aboard the Coriolis satellite and three different modeling techniques produced a refined parallax of 5.95 +0.58 −0.85 mas, a radius of 764 +116 −62 R ☉ , and a distance of 168.1 +27.5 −14.4 pc or 548 +90 −49 ly, which, if accurate, would mean Betelgeuse is nearly 25% smaller and 25% closer to Earth than previously thought. Although

28440-550: The spilled drink burns a hole in the floor; in the film, after the Guide is done explaining what the Pan-Galactic Gargle Blaster is and its effects, Ford and Zaphod yell in pain. The Hitchhiker's Guide to the Galaxy gives the recipe as follows: The Guide also implies that there are multiple voluntary organisations available to rehabilitate those who would try the Pan-Galactic Gargle Blaster. Real versions of

28620-460: The star and each emitting 5–10% of the total light of the star. One theory to explain long secondary periods is that they are caused by the evolution of such cells combined with the rotation of the star. Other theories include close binary interactions, chromospheric magnetic activity influencing mass loss, or non-radial pulsations such as g-modes . In addition to the discrete dominant periods, small-amplitude stochastic variations are seen. It

28800-488: The star had shrunk by 15% since 1993 at an increasing rate without a significant diminution in magnitude. Subsequent observations suggest that the apparent contraction may be due to shell activity in the star's extended atmosphere. In addition to the star's diameter, questions have arisen about the complex dynamics of Betelgeuse's extended atmosphere. The mass that makes up galaxies is recycled as stars are formed and destroyed , and red supergiants are major contributors, yet

28980-480: The star showed signs of rebrightening. On 22 February 2020, Betelgeuse may have stopped dimming altogether, all but ending the dimming episode. On 24 February 2020, no significant change in the infrared over the last 50 years was detected; this seemed unrelated to the recent visual fading and suggested that an impending core collapse may be unlikely. Also on 24 February 2020, further studies suggested that occluding "large-grain circumstellar dust " may be

29160-644: The star's diameter was measured with the Infrared Spatial Interferometer (ISI) at mid-infrared wavelengths producing a limb-darkened estimate of 55.2 ± 0.5  mas – a figure entirely consistent with Michelson's findings eighty years earlier. At the time of its publication, the estimated parallax from the Hipparcos mission was 7.63 ± 1.64 mas , yielding an estimated radius for Betelgeuse of 3.6 AU . However, an infrared interferometric study published in 2009 announced that

29340-502: The star. In June 2021, the dust was explained as possibly caused by a cool patch on its photosphere and in August a second independent group confirmed these results. The dust is thought to have resulted from the cooling of gas ejected from the star. An August 2022 study using the Hubble Space Telescope confirmed previous research and suggested the dust could have been created by a surface mass ejection. It conjectured as well that

29520-440: The subjects' photographs, sex on a regular basis is associated with people looking significantly chronologically younger. However this does not imply causality. Vaginal intercourse for the first time increases vaginal immune activity. Sexually transmitted infections (STIs) are bacteria , viruses or parasites that are spread by sexual contact, especially vaginal, anal, or oral intercourse, or unprotected sex . Oral sex

29700-429: The team concluded that the closer of the two companions was located at 0.06″ ± 0.01″ (≈9 AU) from the main star with a position angle of 273°, an orbit that would potentially place it within the star's chromosphere . The more distant companion was at 0.51″ ± 0.01″ (≈77 AU) with a position angle of 278°. Further studies have found no evidence for these companions or have actively refuted their existence, but

29880-906: The term coitus, generally denotes penile–vaginal penetration and the possibility of creating offspring , it also commonly denotes penetrative oral sex and penile–anal sex, especially the latter. It usually encompasses sexual penetration, while non-penetrative sex has been labeled outercourse , but non-penetrative sex may also be considered sexual intercourse. Sex , often a shorthand for sexual intercourse , can mean any form of sexual activity. Because people can be at risk of contracting sexually transmitted infections during these activities, safer sex practices are recommended by health professionals to reduce transmission risk. Various jurisdictions place restrictions on certain sexual acts, such as adultery , incest , sexual activity with minors , prostitution , rape , zoophilia , sodomy , premarital sex and extramarital sex . Religious beliefs also play

30060-483: The top 10 brightest stars in the sky to outside the top 20, noticeably dimmer than its near neighbor Aldebaran . Mainstream media reports discussed speculation that Betelgeuse might be about to explode as a supernova, but astronomers note that the supernova is expected to occur within approximately the next 100,000 years and is thus unlikely to be imminent. By 17 February 2020, Betelgeuse's brightness had remained constant for about 10 days, and

30240-446: The unnecessary use of these drugs because they are accompanied by serious risks such as increased chance of heart attack. The selective serotonin reuptake inhibitor (SSRI) and antidepressant drug dapoxetine has been used to treat premature ejaculation. In clinical trials, those with PE who took dapoxetine experienced sexual intercourse three to four times longer before orgasm than without the drug. Another ejaculation-related disorder

30420-433: The use of sex toys . Foreplay may precede some sexual activities, often leading to sexual arousal of the partners and resulting in the erection of the penis or natural lubrication of the vagina . It is also common for people to be as sexually satisfied by being kissed, touched erotically , or held as they are during sexual intercourse. Non- primate females copulate only when in estrus , but sexual intercourse

30600-506: The use of vaginal dilators . Additionally, the use of Botox as a medical treatment for vaginismus has been tested and administered. Painful or uncomfortable sexual intercourse may also be categorized as dyspareunia . Approximately 40% of males reportedly have some form of erectile dysfunction (ED) or impotence, at least occasionally. Premature ejaculation has been reported to be more common than erectile dysfunction, although some estimates suggest otherwise. Due to various meanings of

30780-693: The variable brightness of Betelgeuse for at least 1,000 years. The variation in Betelgeuse's brightness was described in 1836 by Sir John Herschel in Outlines of Astronomy . From 1836 to 1840, he noticed significant changes in magnitude when Betelgeuse outshone Rigel in October 1837 and again in November 1839. A 10-year quiescent period followed; then in 1849, Herschel noted another short cycle of variability, which peaked in 1852. Later observers recorded unusually high maxima with an interval of years, but only small variations from 1957 to 1967. The records of

30960-538: The work of Martin Schwarzschild and his colleague at Princeton University , Richard Härm. This book disseminated ideas on how to apply computer technologies to create stellar models, while the Stratoscope projects, by taking balloon-borne telescopes above the Earth's turbulence , produced some of the finest images of solar granules and sunspots ever seen, thus confirming the existence of convection in

31140-406: Was 43.33 ± 0.04 mas . The study also put forth an explanation as to why varying wavelengths from the visible to mid-infrared produce different diameters: the star is seen through a thick, warm extended atmosphere. At short wavelengths (the visible spectrum) the atmosphere scatters light, thus slightly increasing the star's diameter. At near-infrared wavelengths ( K and L bands ), the scattering

31320-438: Was a theoretical allowance for limb darkening, yielding a diameter of 55.2 ± 0.5 mas . The earlier estimate equates to a radius of roughly 5.6 AU or 1,200  R ☉ , assuming the 2008 Harper distance of 197.0 ± 45 pc , a figure roughly the size of the Jovian orbit of 5.5 AU . In 2004, a team of astronomers working in the near-infrared announced that the more accurate photospheric measurement

31500-588: Was cast millions of miles from the star, and then cooled to form the dust that caused the dimming. The star's designation is α Orionis (Latinised to Alpha Orionis ), given by Johann Bayer in 1603. The traditional name Betelgeuse was derived from the Arabic يد الجوزاء Yad al-Jawzā’ "the hand of al-Jawzā’ [i.e. Orion]". An error in the 13th-century reading of the Arabic initial yā’ ( يـ ) as bā’ ( بـ —a difference in i‘jām ) led to

31680-424: Was equal to the distance between the Sun and Neptune and is one of multiple events occurring in Betelgeuse's surrounding atmosphere. Astronomers have identified at least six shells surrounding Betelgeuse. Solving the mystery of mass loss in the late stages of a star's evolution may reveal those factors that precipitate the explosive deaths of these stellar giants. A pulsating semiregular variable star , Betelgeuse

31860-892: Was lower, with both men and women involved in sexual intercourse before any union formation; the study listed Switzerland, Germany and the Czech Republic as members of this group. Concerning United States data, tabulations by the National Center for Health Statistics report that the age of first sexual intercourse was 17.1 years for both males and females in 2010. The CDC stated that 45.5 percent of girls and 45.7 percent of boys had engaged in sexual activity by 19 in 2002; in 2011, reporting their research from 2006 to 2010, they stated that 43% of American unmarried teenage girls and 42% of American unmarried teenage boys have ever engaged in sexual intercourse. The CDC also reports that American girls will most likely lose their virginity to

32040-594: Was more closely matched; there were two sub-groups, however. In non-Latin, Catholic countries (Poland and Lithuania are mentioned), age at sexual initiation was higher, suggesting later marriage and reciprocal valuing of male and female virginity. The same pattern of late marriage and reciprocal valuing of virginity was reflected in Singapore and Sri Lanka . The study considered China and Vietnam to also fall into this group, though data were not available. In northern and eastern European countries, age at sexual initiation

32220-495: Was reported still fainter in February in The Astronomer's Telegram at a record minimum of +1.614, noting that the star is currently the "least luminous and coolest" in the 25 years of their studies and also calculating a decrease in radius. Astronomy magazine described it as a "bizarre dimming", and popular speculation inferred that this might indicate an imminent supernova . This dropped Betelgeuse from one of

32400-400: Was to find the man who actually ruled the universe – who turns out to be a man living in a shack with his cat who does not believe anything is real or certain except that which he is seeing and hearing at that moment. In the 1986 prequel story " Young Zaphod Plays It Safe ," Zaphod is working as a salvage ship operator, hired by a bureaucratic organization to retrieve the sunken wreck of

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