Horsepower ( hp ) is a unit of measurement of power , or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the imperial horsepower as in "hp" or "bhp" which is about 745.7 watts , and the metric horsepower as in "cv" or "PS" which is approximately 735.5 watts.
76-596: IHP may refer to: Indicated horsepower Innovations for High Performance Microelectronics , a German institute and part of the Gottfried Wilhelm Leibniz Scientific Community Institut Henri Poincaré , a mathematics research institute in Paris, France Integrated Humanities Program International Hydrological Programme Topics referred to by
152-556: A Nobel Prize in Physiology or Medicine for research initially rejected by Nature and published only after Lauterbur appealed against the rejection, Nature acknowledged more of its own missteps in rejecting papers in an editorial titled, "Coping with Peer Rejection": [T]here are unarguable faux pas in our history. These include the rejection of Cherenkov radiation , Hideki Yukawa 's meson , work on photosynthesis by Johann Deisenhofer , Robert Huber and Hartmut Michel , and
228-550: A natural history magazine and progressed to include more physical observational science and technical subjects and less natural history. The journal's name changed from its original title to Intellectual Observer: A Review of Natural History, Microscopic Research, and Recreative Science and then to the Student and Intellectual Observer of Science, Literature, and Art . While Recreative Science had attempted to include more physical sciences such as astronomy and archaeology ,
304-415: A ' brewery horse ' could produce 32,400 foot-pounds [43,929 J] per minute." James Watt and Matthew Boulton standardized that figure at 33,000 foot-pounds (44,742 J) per minute the next year. A common legend states that the unit was created when one of Watt's first customers, a brewer, specifically demanded an engine that would match a horse, and chose the strongest horse he had and driving it to
380-617: A consequence, the majority of submitted papers are rejected without review. According to Nature ' s original mission statement : It is intended, FIRST, to place before the general public the grand results of Scientific Work and Scientific Discovery; and to urge the claims of Science to a more general recognition in Education and in Daily Life; and, SECONDLY, to aid Scientific men themselves, by giving early information of all advances made in any branch of Natural knowledge throughout
456-429: A group of engineers modified a dynometer to be able to measure how much horsepower a horse can produce. This horse was measured to 5.7 hp (4.3 kW). When torque T is in pound-foot units, rotational speed N is in rpm , the resulting power in horsepower is The constant 5252 is the rounded value of (33,000 ft⋅lbf/min)/(2π rad/rev). When torque T is in inch-pounds, The constant 63,025
532-530: A healthy human can produce about 1.2 hp (0.89 kW) briefly (see orders of magnitude ) and sustain about 0.1 hp (0.075 kW) indefinitely; trained athletes can manage up to about 2.5 hp (1.9 kW) briefly and 0.35 hp (0.26 kW) for a period of several hours. The Jamaican sprinter Usain Bolt produced a maximum of 3.5 hp (2.6 kW) 0.89 seconds into his 9.58 second 100-metre (109.4 yd) sprint world record in 2009. In 2023
608-465: A line by William Wordsworth : "To the solid ground of nature trusts the Mind that builds for aye". First owned and published by Alexander Macmillan , Nature was similar to its predecessors in its attempt to "provide cultivated readers with an accessible forum for reading about advances in scientific knowledge." Janet Browne has proposed that "far more than any other science journal of the period, Nature
684-666: A measure of how many citations a journal generates in other works, was 42.778 in 2019 (as measured by Thomson ISI ). However, as with many journals, most papers receive far fewer citations than the impact factor would indicate. Nature 's journal impact factor carries a long tail. Studies of methodological quality and reliability have found that some high-prestige journals including Nature "publish significantly substandard structures", and overall "reliability of published research works in several fields may be decreasing with increasing journal rank". As with most other professional scientific journals, papers undergo an initial screening by
760-419: A theory which, during the latter half of the 19th century, received a great deal of criticism among more conservative groups of scientists. Perhaps it was in part its scientific liberality that made Nature a longer-lasting success than its predecessors. John Maddox , editor of Nature from 1966 to 1973 and from 1980 to 1995, suggested at a celebratory dinner for the journal's centennial edition that perhaps it
836-543: A variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature . Nature was one of the world's most cited scientific journals by the Science Edition of the 2022 Journal Citation Reports (with an ascribed impact factor of 50.5), making it one of
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#1732787745674912-521: Is a coefficient of theoretical brake horsepower and cylinder pressures during combustion. Nominal horsepower (nhp) is an early 19th-century rule of thumb used to estimate the power of steam engines. It assumed a steam pressure of 7 psi (48 kPa). Nature (journal) Nature is a British weekly scientific journal founded and based in London , England. As a multidisciplinary publication, Nature features peer-reviewed research from
988-420: Is also used in many places to symbolize brake horsepower. Drawbar power (dbp) is the power a railway locomotive has available to haul a train or an agricultural tractor to pull an implement. This is a measured figure rather than a calculated one. A special railway car called a dynamometer car coupled behind the locomotive keeps a continuous record of the drawbar pull exerted, and the speed. From these,
1064-456: Is different from Wikidata All article disambiguation pages All disambiguation pages Indicated horsepower The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses . It was later expanded to include the output power of other power-generating machinery such as piston engines , turbines , and electric motors . The definition of
1140-463: Is equivalent to a boiler heat output of 33,469 Btu/h (9.809 kW). Present industrial practice is to define "boiler horsepower" as a boiler thermal output equal to 33,475 Btu/h (9.811 kW), which is very close to the original and revised definitions. Boiler horsepower is still used to measure boiler output in industrial boiler engineering in the US. Boiler horsepower is abbreviated BHP, which
1216-454: Is equivalent to a boiler heat output of 33,485 Btu/h (9.813 kW). A few years later in 1884, the ASME re-defined the boiler horsepower as the thermal output equal to the evaporation of 34.5 pounds per hour of water "from and at" 212 °F (100 °C). This considerably simplified boiler testing, and provided more accurate comparisons of the boilers at that time. This revised definition
1292-484: Is in psi, and flow rate is in US gallons per minute. Drilling rigs are powered mechanically by rotating the drill pipe from above. Hydraulic power is still needed though, as 1 500 to 5 000 W are required to push mud through the drill bit to clear waste rock. Additional hydraulic power may also be used to drive a down-hole mud motor to power directional drilling . When using SI units, the equation becomes coherent and there
1368-465: Is needed to pull a drawbar load of 2,025 pounds-force at 5 miles per hour? { P } h p = 2025 × 5 375 = 27. {\displaystyle \{P\}_{\mathrm {hp} }={\frac {2025\times 5}{375}}=27.} The constant 375 is because 1 hp = 375 lbf⋅mph. If other units are used, the constant is different. When using coherent SI units (watts, newtons, and metres per second), no constant
1444-507: Is needed, and the formula becomes P = Fv . This formula may also be used to calculate the power of a jet engine, using the speed of the jet and the thrust required to maintain that speed. Example: how much power is generated with a thrust of 4000 pounds at 400 miles per hour? { P } h p = 4000 × 400 375 = 4266.7. {\displaystyle \{P\}_{\mathrm {hp} }={\frac {4000\times 400}{375}}=4266.7.} This measure
1520-434: Is no dividing constant. where pressure is in pascals (Pa), and flow rate is in cubic metres per second (m ). Boiler horsepower is a boiler 's capacity to deliver steam to a steam engine and is not the same unit of power as the 550 ft lb/s definition. One boiler horsepower is equal to the thermal energy rate required to evaporate 34.5 pounds (15.6 kg) of fresh water at 212 °F (100 °C) in one hour. In
1596-450: Is ordinarily stated in watts or kilowatts. In the United States, the power output is stated in horsepower which, for this purpose, is defined as exactly 746 W. Hydraulic horsepower can represent the power available within hydraulic machinery , power through the down-hole nozzle of a drilling rig , or can be used to estimate the mechanical power needed to generate a known hydraulic flow rate. It may be calculated as where pressure
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#17327877456741672-743: Is the approximation of Assuming the third CGPM (1901, CR 70) definition of standard gravity , g n = 9.80665 m/s , is used to define the pound-force as well as the kilogram force, and the international avoirdupois pound (1959), one imperial horsepower is: Or given that 1 hp = 550 ft⋅lbf/s, 1 ft = 0.3048 m, 1 lbf ≈ 4.448 N, 1 J = 1 N⋅m, 1 W = 1 J/s: 1 hp ≈ 745.7 W The various units used to indicate this definition ( PS , KM , cv , hk , pk , k , ks and ch ) all translate to horse power in English. British manufacturers often intermix metric horsepower and mechanical horsepower depending on
1748-584: The Nature Clinical Practice series of journals, Nature Structural & Molecular Biology , Nature Chemistry , and the Nature Reviews series of journals. Since 2005, each issue of Nature has been accompanied by a Nature Podcast featuring highlights from the issue and interviews with the articles' authors and the journalists covering the research. It is presented by Kerri Smith and features interviews with scientists on
1824-574: The Intellectual Observer broadened itself further to include literature and art as well. Similar to Recreative Science was the scientific journal Popular Science Review , created in 1862, which covered different fields of science by creating subsections titled "Scientific Summary" or "Quarterly Retrospect", with book reviews and commentary on the latest scientific works and publications. Two other journals produced in England prior to
1900-463: The Prince of Asturias Award for Communications and Humanity. Nature mostly publishes research articles. Spotlight articles are not research papers but mostly news or magazine style papers and hence do not count towards impact factor nor receive similar recognition as research articles. Some spotlight articles are also paid by partners or sponsors. The huge progress in science and mathematics during
1976-423: The Student and Intellectual Observer in 1871. The Quarterly Journal , after undergoing a number of editorial changes, ceased publication in 1885. The Reader terminated in 1867, and finally, Scientific Opinion lasted a mere 2 years, until June 1870. Not long after the conclusion of The Reader , a former editor, Norman Lockyer , decided to create a new scientific journal titled Nature , taking its name from
2052-561: The Unite the Right rally to oppose the removal of a statue of Robert E. Lee , setting off violence in the streets and killing a young woman. When Nature posted a link to the editorial on Twitter , the thread quickly exploded with criticisms. In response, several scientists called for a boycott. On 18 September 2017, the editorial was updated and edited by Philip Campbell, the editor of the journal. When Paul Lauterbur and Peter Mansfield won
2128-781: The kilowatt as the official power-measuring unit in EEC directives. Other names for the metric horsepower are the Italian cavallo vapore (cv) , Dutch paardenkracht (pk) , the French cheval-vapeur (ch) , the Spanish caballo de vapor and Portuguese cavalo-vapor (cv) , the Russian лошадиная сила (л. с.) , the Swedish hästkraft (hk) , the Finnish hevosvoima (hv) ,
2204-496: The structure of DNA , Nature did not send the paper out for peer review. John Maddox , Nature ' s editor, stated: "the Watson and Crick paper was not peer-reviewed by Nature ... the paper could not have been refereed: its correctness is self-evident. No referee working in the field ... could have kept his mouth shut once he saw the structure". An earlier error occurred when Enrico Fermi submitted his breakthrough paper on
2280-501: The 1926 Iowa State Fair , they reported that the peak power over a few seconds has been measured to be as high as 14.88 hp (11.10 kW) and also observed that for sustained activity, a work rate of about 1 hp (0.75 kW) per horse is consistent with agricultural advice from both the 19th and 20th centuries and also consistent with a work rate of about four times the basal rate expended by other vertebrates for sustained activity. When considering human-powered equipment ,
2356-628: The 19th century was recorded in journals written mostly in German or French , as well as in English . Britain underwent enormous technological and industrial changes and advances particularly in the latter half of the 19th century. The most respected scientific journals of this time were the refereed journals of the Royal Society , which had published many of the great works from Isaac Newton and Michael Faraday to Charles Darwin . In addition,
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2432-530: The Creative Commons attribution-non-commercial-share alike unported licence for those articles in Nature journals that are publishing the primary sequence of an organism's genome for the first time. In 2008, a collection of articles from Nature was edited by John S. Partington under the title H. G. Wells in Nature, 1893–1946: A Reception Reader and published by Peter Lang . Nature also publishes
2508-861: The Estonian hobujõud (hj) , the Norwegian and Danish hestekraft (hk) , the Hungarian lóerő (LE) , the Czech koňská síla and Slovak konská sila (k or ks ), the Serbo-Croatian konjska snaga (KS) , the Bulgarian конска сила , the Macedonian коњска сила (KC) , the Polish koń mechaniczny (KM) ( lit. ' mechanical horse ' ), Slovenian konjska moč (KM) ,
2584-667: The Ukrainian кінська сила (к. с.) , the Romanian cal-putere (CP) , and the German Pferdestärke (PS) . In the 19th century, revolutionary-era France had its own unit used to replace the cheval vapeur (horsepower); based on a 100 kgf ⋅m/s standard, it was called the poncelet and was abbreviated p . Tax or fiscal horsepower is a non-linear rating of a motor vehicle for tax purposes. Tax horsepower ratings were originally more or less directly related to
2660-898: The activities of the International Scientific Unions." During the years 1945 to 1973, editorship of Nature changed three times, first in 1945 to A. J. V. Gale and L. J. F. Brimble (who in 1958 became the sole editor), then to John Maddox in 1965, and finally to David Davies in 1973. In 1980, Maddox returned as editor and retained his position until 1995. Philip Campbell became Editor-in-chief of all Nature publications until 2018. Magdalena Skipper has since become Editor-in-chief. In 1970, Nature first opened its Washington office; other branches opened in New York in 1985, Tokyo and Munich in 1987, Paris in 1989, San Francisco in 2001, Boston in 2004, and Hong Kong in 2005. In 1971, under John Maddox 's editorship,
2736-650: The case that removing such statues, and erasing names, runs the risk of "whitewashing history", and stated "Instead of removing painful reminders, perhaps these should be supplemented". The article caused a large outcry and was quickly modified by Nature. The article was largely seen as offensive, inappropriate, and by many, racist. Nature acknowledged that the article as originally written was "offensive and poorly worded" and published selected letters of response. The editorial came just weeks after hundreds of white supremacists marched in Charlottesville, Virginia , in
2812-516: The content. While it does, to an extent, provide free online access to articles, it is not a true open access scheme due to its restrictions on re-use and distribution. On 15 January 2015, details of a proposed merger with Springer Science+Business Media were announced. In May 2015 it came under the umbrella of Springer Nature , by the merger of Springer Science+Business Media and Holtzbrinck Publishing Group 's Nature Publishing Group , Palgrave Macmillan , and Macmillan Education . Since 2011,
2888-531: The creation of a network of editorial offices outside of Britain and the establishment of ten new supplementary, speciality publications (e.g. Nature Materials ). Since the late 2000s, dedicated editorial and current affairs columns are created weekly, and electoral endorsements are featured. The primary source of the journal remains, as established at its founding, research scientists; editing standards are primarily concerned with technical readability. Each issue also features articles that are of general interest to
2964-672: The development of Nature were the Quarterly Journal of Science and Scientific Opinion , established in 1864 and 1868, respectively. The journal most closely related to Nature in its editorship and format was The Reader , created in 1863; the publication mixed science with literature and art in an attempt to reach an audience outside of the scientific community, similar to Popular Science Review . These similar journals all ultimately failed. The Popular Science Review survived longest, lasting 20 years and ending its publication in 1881; Recreative Science ceased publication as
3040-666: The early days of steam use, the boiler horsepower was roughly comparable to the horsepower of engines fed by the boiler. The term "boiler horsepower" was originally developed at the Philadelphia Centennial Exhibition in 1876, where the best steam engines of that period were tested. The average steam consumption of those engines (per output horsepower) was determined to be the evaporation of 30 pounds (14 kg) of water per hour, based on feed water at 100 °F (38 °C), and saturated steam generated at 70 psi (480 kPa). This original definition
3116-411: The editor, followed by peer review (in which other scientists, chosen by the editor for expertise with the subject matter but who have no connection to the research under review, will read and critique articles), before publication. In the case of Nature , they are only sent for review if it is decided that they deal with a topical subject and are sufficiently ground-breaking in that particular field. As
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3192-530: The engine's bore size, number of cylinders, and a (now archaic) presumption of engine efficiency. As new engines were designed with ever-increasing efficiency, it was no longer a useful measure, but was kept in use by UK regulations, which used the rating for tax purposes . The United Kingdom was not the only country that used the RAC rating; many states in Australia used RAC hp to determine taxation. The RAC formula
3268-499: The engine. The situation persisted for several generations of four- and six-cylinder British engines: For example, Jaguar's 3.4-litre XK engine of the 1950s had six cylinders with a bore of 83 mm (3.27 in) and a stroke of 106 mm (4.17 in), where most American automakers had long since moved to oversquare (large bore, short stroke) V8 engines . See, for example, the early Chrysler Hemi engine . The power of an engine may be measured or estimated at several points in
3344-464: The founder of Nature , was a professor at Imperial College . He was succeeded as editor in 1919 by Sir Richard Gregory . Gregory helped to establish Nature in the international scientific community. His obituary by the Royal Society stated: "Gregory was always very interested in the international contacts of science, and in the columns of Nature he always gave generous space to accounts of
3420-456: The initial rejection (but eventual acceptance) of Stephen Hawking 's black-hole radiation . In June 1988, after nearly a year of guided scrutiny from its editors, Nature published a controversial and seemingly anomalous paper detailing Jacques Benveniste and his team's work studying water memory . The paper concluded that less than a single molecule of antibody diluted in water could trigger an immune response in human basophils , defying
3496-474: The journal as either letters or news articles. The papers that have been published in this journal are internationally acclaimed for maintaining high research standards. Conversely, due to the journal's exposure, it has at various times been a subject of controversy for its handling of academic dishonesty, the scientific method , and news coverage. Fewer than 8% of submitted papers are accepted for publication. In 2007, Nature (together with Science ) received
3572-672: The journal has published Nature's 10 "people who mattered" during the year, as part of their annual review. According to Science , another academic journal, being published in Nature has been known to carry a certain level of prestige in academia. In particular, empirical papers are often highly cited, which can lead to promotions, grant funding, and attention from the mainstream media. Because of these positive feedback effects, competition among scientists to publish in high-level journals like Nature and its closest competitor, Science , can be very fierce. Nature ' s impact factor ,
3648-423: The journal split into Nature Physical Sciences (published on Mondays), Nature New Biology (published on Wednesdays), and Nature (published on Fridays). In 1974, Maddox was no longer editor, and the journals were merged into Nature . Starting in the 1980s, the journal underwent a great deal of expansion, launching over ten new journals. These new journals comprise Nature Research, which was created in 1999 under
3724-595: The latest research, as well as news reports from Nature 's editors and journalists. The Nature Podcast was founded – and the first 100 episodes were produced and presented – by clinician and virologist Chris Smith of Cambridge and The Naked Scientists . Nature Portfolio actively supports the self-archiving process and in 2002 was one of the first publishers to allow authors to post their contributions on their personal websites, by requesting an exclusive licence to publish, rather than requiring authors to transfer copyright. In December 2007, Nature Publishing Group introduced
3800-454: The limit. In that legend, Watt accepted the challenge and built a machine that was actually even stronger than the figure achieved by the brewer, and the output of that machine became the horsepower. In 1993, R. D. Stevenson and R. J. Wassersug published correspondence in Nature summarizing measurements and calculations of peak and sustained work rates of a horse. Citing measurements made at
3876-411: The name Nature Publishing Group and includes Nature , Nature Research Journals , Stockton Press Specialist Journals and Macmillan Reference (renamed NPG Reference). In 1996, Nature created its own website and in 1999 Nature Publishing Group began its series of Nature Reviews . Some articles and papers are available for free on the Nature website, while others require the purchase of premium access to
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#17327877456743952-563: The number of popular science periodicals doubled from the 1850s to the 1860s. According to the editors of these popular science magazines, the publications were designed to serve as "organs of science", in essence, a means of connecting the public to the scientific world. Nature , first created in 1869, was not the first magazine of its kind in Britain. One journal to precede Nature was Recreative Science: A Record and Remembrancer of Intellectual Observation , which, created in 1859, began as
4028-512: The origin of the engine in question. DIN 66036 defines one metric horsepower as the power to raise a mass of 75 kilograms against the Earth's gravitational force over a distance of one metre in one second: 75 kg × 9.80665 m/s × 1 m / 1 s = 75 kgf ⋅m/s = 1 PS. This is equivalent to 735.49875 W, or 98.6% of an imperial horsepower. In 1972, the PS was replaced by
4104-496: The physical law of mass action . The paper excited substantial media attention in Paris, chiefly because their research sought funding from homeopathic medicine companies. Public inquiry prompted Nature to mandate an extensive and stringent experimental replication in Benveniste's lab, through which his team's results were refuted. Before publishing one of its most famous discoveries, Watson and Crick 's 1953 paper on
4180-489: The placement and maintenance of statues honouring scientists with known unethical, abusive and torturous histories. Specifically, the editorial called on examples of J. Marion Sims , the 'Father of gynecology' who experimented on African American female slaves who were unable to give informed consent, and Thomas Parran Jr. who oversaw the Tuskegee Syphilis Experiment . The editorial as written made
4256-670: The power generated can be calculated. To determine the maximum power available, a controllable load is required; it is normally a second locomotive with its brakes applied, in addition to a static load. If the drawbar force ( F ) is measured in pounds-force (lbf) and speed ( v ) is measured in miles per hour (mph), then the drawbar power ( P ) in horsepower (hp) is { P } h p = { F } l b f { v } m p h 375 . {\displaystyle \{P\}_{\mathrm {hp} }={\frac {\{F\}_{\mathrm {lbf} }\{v\}_{\mathrm {mph} }}{375}}.} Example: How much power
4332-618: The public throughout the world, in a fashion that conveys their significance for knowledge, culture and daily life. Many of the most significant scientific breakthroughs in modern history have been first published in Nature . The following is a selection of scientific breakthroughs published in Nature , all of which had far-reaching consequences, and the citation for the article in which they were published. In 2017, Nature published an editorial entitled "Removing Statues of Historical figures risks whitewashing history: Science must acknowledge mistakes as it marks its past". The article commented on
4408-403: The same term [REDACTED] This disambiguation page lists articles associated with the title IHP . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=IHP&oldid=1178913014 " Category : Disambiguation pages Hidden categories: Short description
4484-486: The scientific community, namely business, funding, scientific ethics, and research breakthroughs. There are also sections on books, arts, and short science fiction stories. The main research published in Nature consists mostly of papers (articles or letters) in lightly edited form. They are highly technical and dense, but, due to imposed text limits, they are typically summaries of larger work. Innovations or breakthroughs in any scientific or technological field are featured in
4560-494: The site. As of 2012 , Nature claimed an online readership of about 3 million unique readers per month. On 30 October 2008, Nature endorsed an American presidential candidate for the first time when it supported Barack Obama during his campaign in America's 2008 presidential election . In October 2012, an Arabic edition of the magazine was launched in partnership with King Abdulaziz City for Science and Technology . As of
4636-423: The size of the engine; but as of 2000, many countries changed over to systems based on CO 2 emissions, so are not directly comparable to older ratings. The Citroën 2CV is named for its French fiscal horsepower rating, "deux chevaux" (2CV). Nameplates on electrical motors show their power output, not the power input (the power delivered at the shaft, not the power consumed to drive the motor). This power output
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#17327877456744712-533: The time it was released, it had about 10,000 subscribers. On 2 December 2014, Nature announced that it would allow its subscribers and a group of selected media outlets to share links allowing free, "read-only" access to content from its journals. These articles are presented using the digital rights management system ReadCube (which is funded by the Macmillan subsidiary Digital Science), and does not allow readers to download, copy, print, or otherwise distribute
4788-502: The transmission of the power from its generation to its application. A number of names are used for the power developed at various stages in this process, but none is a clear indicator of either the measurement system or definition used. In general: All the above assumes that no power inflation factors have been applied to any of the readings. Engine designers use expressions other than horsepower to denote objective targets or performance, such as brake mean effective pressure (BMEP). This
4864-685: The unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, the use of horsepower in the EU is permitted only as a supplementary unit. The development of the steam engine provided a reason to compare the output of horses with that of the engines that could replace them. In 1702, Thomas Savery wrote in The Miner's Friend : The idea
4940-498: The weak interaction theory of beta decay . Nature rejected the paper because it was considered too remote from reality. Fermi's paper was published by Zeitschrift für Physik in 1934. The journal apologised for its initial coverage of the COVID-19 pandemic in which it linked China and Wuhan with the outbreak, which may have led to racist attacks. From 2000 to 2001, a series of five fraudulent papers by Jan Hendrik Schön
5016-492: The world's most-read and most prestigious academic journals . As of 2012 , it claimed an online readership of about three million unique readers per month. Founded in autumn 1869, Nature was first circulated by Norman Lockyer and Alexander MacMillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the journal; Nature redoubled its efforts in explanatory and scientific journalism . The late 1980s and early 1990s saw
5092-430: The world, and by affording them an opportunity of discussing the various Scientific questions which arise from time to time. This was later revised to: First, to serve scientists through prompt publication of significant advances in any branch of science, and to provide a forum for the reporting and discussion of news and issues concerning science. Second, to ensure that the results of science are rapidly disseminated to
5168-475: Was retracted due to concerns raised regarding some of the panels shown in a figure, making it the most-cited retracted paper ever. In 1999, Nature began publishing science fiction short stories. The brief " vignettes " are printed in a series called "Futures". The stories appeared in 1999 and 2000, again in 2005 and 2006, and have appeared weekly since July 2007. Sister publication Nature Physics also printed stories in 2007 and 2008. In 2005, Nature
5244-609: Was 12 feet (3.7 m) in radius; therefore, the horse travelled 2.4 × 2π × 12 feet in one minute. Watt judged that the horse could pull with a force of 180 pounds-force (800 N). So: Engineering in History recounts that John Smeaton initially estimated that a horse could produce 22,916 foot-pounds (31,070 J) per minute. John Desaguliers had previously suggested 44,000 foot-pounds (59,656 J) per minute, and Thomas Tredgold suggested 27,500 foot-pounds (37,285 J) per minute. "Watt found by experiment in 1782 that
5320-1027: Was awarded the European Science Fiction Society 's Best Publisher award for the "Futures" series. One hundred of the Nature stories between 1999 and 2006 were published as the collection Futures from Nature in 2008. Another collection, Futures from Nature 2 , was published in 2014. Nature is edited and published in the United Kingdom by a division of the international scientific publishing company Springer Nature that publishes academic journals, magazines , online databases, and services in science and medicine. Nature has offices in London, New York City, San Francisco, Washington, D.C., Boston , Tokyo, Hong Kong, Paris, Munich , and Basingstoke . Nature Portfolio also publishes other specialized journals including Nature Neuroscience , Nature Biotechnology , Nature Methods ,
5396-610: Was conceived, born, and raised to serve polemic purpose." Many of the early editions of Nature consisted of articles written by members of a group that called itself the X Club , a group of scientists known for having liberal, progressive, and somewhat controversial scientific beliefs for their time. Initiated by Thomas Henry Huxley , the group consisted of such important scientists as Joseph Dalton Hooker , Herbert Spencer , and John Tyndall , along with another five scientists and mathematicians; these scientists were all avid supporters of Darwin's theory of evolution as common descent ,
5472-546: Was instituted by the Royal Automobile Club and was used to denote the power of early 20th-century British cars. Many cars took their names from this figure (hence the Austin Seven and Riley Nine), while others had names such as "40/50 hp", which indicated the RAC figure followed by the true measured power. Taxable horsepower does not reflect developed horsepower; rather, it is a calculated figure based on
5548-420: Was later used by James Watt to help market his improved steam engine. He had previously agreed to take royalties of one-third of the savings in coal from the older Newcomen steam engines . This royalty scheme did not work with customers who did not have existing steam engines but used horses instead. Watt determined that a horse could turn a mill wheel 144 times in an hour (or 2.4 times a minute). The wheel
5624-438: Was published in Nature . The papers, about semiconductors , were revealed to contain falsified data and other scientific fraud. In 2003, Nature retracted the papers. The Schön scandal was not limited to Nature ; other prominent journals, such as Science and Physical Review , also retracted papers by Schön. In 2024, a paper titled " Pluripotency of mesenchymal stem cells derived from adult marrow," published in 2002,
5700-475: Was sometimes applied in British colonies as well, such as Kenya (British East Africa) . where Since taxable horsepower was computed based on bore and number of cylinders, not based on actual displacement, it gave rise to engines with "undersquare" dimensions (bore smaller than stroke), which tended to impose an artificially low limit on rotational speed , hampering the potential power output and efficiency of
5776-480: Was the journalistic qualities of Nature that drew readers in; "journalism" Maddox states, "is a way of creating a sense of community among people who would otherwise be isolated from each other. This is what Lockyer's journal did from the start." In addition, Maddox mentions that the financial backing of the journal in its first years by the Macmillan family also allowed the journal to flourish and develop more freely than scientific journals before it. Norman Lockyer ,
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