A nail gun , nailgun or nailer is a form of hammer used to drive nails into wood or other materials. It is usually driven by compressed air ( pneumatic ), electromagnetism , highly flammable gases such as butane or propane , or, for powder-actuated tools , a small explosive charge . Nail guns have in many ways replaced hammers as tools of choice among builders.
122-480: The nail gun was designed by Morris Pynoos, a civil engineer by training, for his work on Howard Hughes ' Hughes H-4 Hercules (known as the Spruce Goose). The wooden fuselage was nailed together and glued, and then the nails were removed. The first nail gun used air pressure and was introduced to the market in 1950 to speed the construction of housing floor sheathing and sub-floors. With the original nail gun,
244-460: A Lockheed 14 Super Electra (NX18973, a twin-engine transport with a crew of four) fitted with the latest radio and navigational equipment. Harry Connor was the co-pilot, Thomas Thurlow the navigator, Richard Stoddart the engineer, and Ed Lund the mechanic. Hughes wanted the flight to be a triumph of U.S. aviation technology, illustrating that safe, long-distance air travel was possible. Albert Lodwick of Mystic, Iowa , provided organizational skills as
366-622: A Thomas-Morse Scout while filming Hell's Angels , one while setting the airspeed record in the Hughes Racer, one at Lake Mead in 1943, and the near-fatal crash of the Hughes XF-11 in 1946. At Rogers Airport in Los Angeles, he learned to fly from pioneer aviators, including Moye Stephens and J.B. Alexander. He set many world records and commissioned the construction of custom aircraft for himself while heading Hughes Aircraft at
488-454: A firearm are usually recommended for their use. For safety , nail guns are designed to be used with the muzzle contacting the target. Unless specifically modified for the purpose, they are not effective as a projectile weapon. The most common firing mechanism is the dual-action contact-trip trigger, which requires that the manual trigger and nose contact element both be depressed for a nail to be discharged. The sequential-trip trigger, which
610-526: A scar on his upper lip resulting from the accident. The War Production Board , a civilian government agency that supervised war production from 1942-45, originally contracted with Henry Kaiser and Hughes to produce the gigantic HK-1 Hercules flying boat for use during World War II to transport troops and equipment across the Atlantic as an alternative to seagoing troop transport ships that were vulnerable to German U-boats . The military services opposed
732-509: A brief stint at The Thacher School , Hughes attended math and aeronautical engineering courses at Caltech . The red-brick house where Hughes lived as a teenager at 3921 Yoakum Blvd., Houston, still stands, now known as Hughes House on the grounds of the University of St. Thomas . His mother Allene died in March 1922 from complications of an ectopic pregnancy . Howard Hughes Sr. died of
854-631: A career employee, or as a political appointment that does not require Senate confirmation , with the latter method typically being used. The director serves at the pleasure of the President and may be fired at any time. On January 20, 2025, the CDC Director position will change to require Senate confirmation, due to a provision in the Consolidated Appropriations Act, 2023 . The CDC Director concurrently serves as
976-403: A clipped head so the nails can be closer together, which allows less frequent reloading. Clip head nails are sometimes banned by state or local building codes. Full Round Head nails and ring shank nails provide greater resistance to pull out. Nailers may also be of the 'coil' type where the fasteners come in wire or plastic collation, to be used with nail guns with a drum magazine ; the advantage
1098-431: A comedy picture. The Racket (1928) and The Front Page (1931) were also nominated for Academy Awards . Hughes spent $ 3.5 million to make the flying film Hell's Angels (1930). Hell's Angels received one Academy Award nomination for Best Cinematography . He produced another hit, Scarface (1932), a production delayed by censors' concern over its violence. The Outlaw premiered in 1943, but
1220-419: A comprehensive book, CDC Health Information for International Travel , which is commonly known as the "yellow book." The book is available online and in print as a new edition every other year and includes current travel health guidelines, vaccine recommendations, and information on specific travel destinations . The CDC also issues travel health notices on its website, consisting of three levels: The CDC uses
1342-671: A directive to order 100 of a reconnaissance development of the D-2, known as the F-11 ( XF-11 in prototype form). The project was controversial from the beginning, as the USAAF Air Materiel Command deeply doubted that Hughes Aircraft could fulfill a contract this large, but Arnold pushed the project forward. Materiel Command demanded a host of major design changes notably including the elimination of Duramold; Hughes, who sought $ 3.9 million in reimbursement for sunk costs from
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#17327826011751464-560: A few. The organization would also prove to be an important factor in preventing the abuse of penicillin . In May 1994 the CDC admitted having sent samples of communicable diseases to the Iraqi government from 1984 through 1989 which were subsequently repurposed for biological warfare, including Botulinum toxin , West Nile virus , Yersinia pestis and Dengue fever virus. On April 21, 2005, then–CDC Director Julie Gerberding formally announced
1586-470: A flight around the world in just 91 hours (three days, 19 hours, 17 minutes), beating the previous record of 186 hours (seven days, 18 hours, 49 minutes) set in 1933 by Wiley Post in a single-engine Lockheed Vega by almost four days. Hughes returned home ahead of photographs of his flight. Taking off from New York City, Hughes continued to Paris, Moscow, Omsk , Yakutsk , Fairbanks , and Minneapolis , then returning to New York City. For this flight he flew
1708-417: A gas (e.g. propane ) and air explosion in a small cylinder; the piston pushes the nail directly and there are no rotating parts. In one type of electric nail gun, a rotating electric motor gradually compresses a powerful spring and suddenly releases it. Here a solenoid propels a metal piston, which has a long front rod which propels the nail. The solenoid tends to attract the piston or projectile towards
1830-408: A heart attack in 1924. Their deaths apparently inspired Hughes to include the establishment of a medical research laboratory in the will that he signed in 1925 at age 19. Howard Sr.'s will had not been updated since Allene's death, and Hughes Jr. inherited 75% of the family fortune. On his 19th birthday, Hughes was declared an emancipated minor , enabling him to take full control of his life. From
1952-405: A list of the latest safety information, side effects, and answers to common questions about CDC recommended vaccines. The Vaccine Safety Datalink (VSD) works with a network of healthcare organizations to share data on vaccine safety and adverse events. The Clinical Immunization Safety Assessment (CISA) project is a network of vaccine experts and health centers that research and assist the CDC in
2074-710: A measure against the spread of antibiotic resistance in the United States. This initiative has a budget of $ 161 million and includes the development of the Antibiotic Resistance Lab Network . Globally, the CDC works with other organizations to address global health challenges and contain disease threats at their source. They work with many international organizations such as the World Health Organization (WHO) as well as ministries of health and other groups on
2196-411: A minimal head. They are used for attaching everything from beadings, mouldings and so forth to furniture all the way up to medium-sized 7 to 8 inches (18 to 20 cm) baseboard, crown molding and casing. Lengths are normally in the range 3 ⁄ 8 to 1 + 1 ⁄ 4 inches (10 to 32 mm), although some industrial tool manufacturers supply up to 2 inches (51 mm). The 23 gauge micro pin
2318-458: A month, but Durkin's daughter denied knowing that he received any money from Hughes. Despite his physical injuries, Hughes took pride that his mind was still working. As he lay in his hospital bed, he decided that he did not like the bed's design. He called in plant engineers to design a customized bed, equipped with hot and cold running water, built in six sections, and operated by 30 electric motors, with push-button adjustments. Hughes designed
2440-758: A more refined cosmopolitan city. In addition to the Desert Inn, Hughes would eventually own the Sands , Frontier , Silver Slipper , Castaways , and Landmark and Harold's Club in Reno. During his four years in Las Vegas, Hughes became the largest employer in Nevada. Another portion of Hughes' commercial interests involved aviation, airlines, and the aerospace and defense industries. A lifelong aircraft enthusiast and pilot, Hughes survived four airplane accidents: one in
2562-592: A near-fatal plane crash, and increasing deafness . As a film tycoon, Hughes gained fame in Hollywood beginning in the late 1920s, when he produced big-budget and often controversial films such as The Racket (1928), Hell's Angels (1930), and Scarface (1932). He later acquired the RKO Pictures film studio in 1948, recognized then as one of the Big Five studios of Hollywood's Golden Age , although
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#17327826011752684-539: A network of radio stations known as the RKO Radio Network . In 1948, Hughes gained control of RKO, a struggling major Hollywood studio, by acquiring the 929,000 shares owned by Floyd Odlum 's Atlas Corporation , for $ 8,825,000 ($ 107,165,160 in 2023). Within weeks of acquiring the studio, Hughes dismissed 700 employees. Production dwindled to 9 pictures during the first year of Hughes' control; previously RKO had averaged 30 per year. That same year, 1948, he
2806-488: A number of notable training and fellowship programs, including those indicated below. The Epidemic Intelligence Service (EIS) is composed of "boots-on-the-ground disease detectives" who investigate public health problems domestically and globally. When called upon by a governmental body, EIS officers may embark on short-term epidemiological assistance assignments, or "Epi-Aids", to provide technical expertise in containing and investigating disease outbreaks. The EIS program
2928-448: A number of tools to monitor the safety of vaccines. The Vaccine Adverse Event Reporting System (VAERS), a national vaccine safety surveillance program run by CDC and the FDA. "VAERS detects possible safety issues with U.S. vaccines by collecting information about adverse events (possible side effects or health problems) after vaccination." The CDC's Safety Information by Vaccine page provides
3050-676: A period of 65 years; the Atlanta City Council had voted to do so the prior December. The CDC and Emory University had requested that the Atlanta city government annex the area, paving the way for a MARTA expansion through the Emory campus, funded by city tax dollars. The headquarters were located in an unincorporated area , statistically in the Druid Hills census-designated place . On August 17, 2022, Dr. Walensky said
3172-511: A severe gash on the top of his head when he hit the upper control panel and had to be rescued by one of the others on board. Hughes paid divers $ 100,000 to raise the aircraft and later spent more than $ 500,000 restoring it. Hughes sent the plane to Houston, where it remained for many years. Acting on a recommendation of the president's son, Colonel Elliott Roosevelt , who had become friends with Hughes, in September 1943 General Arnold issued
3294-420: A short film, Swell Hogan , which Graves had written and would star in. Hughes himself produced it. When he screened it, he thought it was a disaster. After hiring a film editor to try to salvage it, he finally ordered that it be destroyed. His next two films, Everybody's Acting (1926) and Two Arabian Knights (1927), achieved financial success; the latter won the first Academy Award for Best Director of
3416-570: A single strike drive the fastener. In the United States, about 42,000 people every year go to emergency rooms with injuries from nail guns, according to the U.S. Centers for Disease Control (CDC). 40% of those injuries occur to consumers. Nail gun injuries tripled between 1991 and 2005. Foot and hand injuries are among the most common. The U.S. Consumer Product Safety Commission estimates that treating nail gun wounds costs at least $ 338 million per year nationally in emergency medical care, rehabilitation, and workers' compensation. Often personnel selling
3538-465: A successful inventor and businessman from Missouri. He had English , Welsh and some French Huguenot ancestry, and was a descendant of John Gano (1727–1804), the minister who allegedly baptized George Washington . Through John Gano's sister Sussanah, Hughes was a 5th cousin once-removed of the Wright brothers , Orville and Wilbur, who invented the first successful airplane. Hughes Sr. patented
3660-445: A young age, Hughes became a proficient and enthusiastic golfer. He often scored near-par figures, playing the game to a two-three handicap during his 20s, and for a time aimed for a professional golf career. He golfed frequently with top players, including Gene Sarazen . Hughes rarely played competitively and gradually gave up his passion for the sport to pursue other interests. Hughes played golf every afternoon at LA courses including
3782-511: Is a model for the international Field Epidemiology Training Program . The CDC also operates the Public Health Associate Program (PHAP), a two-year paid fellowship for recent college graduates to work in public health agencies all over the United States. PHAP was founded in 2007 and currently has 159 associates in 34 states. The Director of CDC is a Senior Executive Service position that may be filled either by
Nail gun - Misplaced Pages Continue
3904-407: Is a type of nail gun that drives simple pin-like fasteners as substitutes for finish nails . Pin nailers are often used on molding for furniture, cabinets, and interior millwork . They can also work as temporary fasteners for pieces with irregular shapes that are impossible to hold down with a clamp securely. Howard Hughes Howard Robard Hughes Jr. (December 24, 1905 – April 5, 1976)
4026-400: Is acceptable. Most 18 gauge brads have heads, but some manufacturers offer headless fastenings. Lengths range from 5 ⁄ 8 to 2 inches (16 to 51 mm). The next sizes are 16 and 15 gauge (1.63 and 1.83 mm diameter). These are generally referred to as "finish nails". They come in lengths between 5 ⁄ 8 and 2 + 1 ⁄ 2 in (16 and 64 mm) and are used in
4148-495: Is also limited by the size and rebound rate of its compressor in the number of fasteners it can drive consecutively. Historically pneumatic air guns required daily oiling (at a minimum), though "oil-free" versions are also produced. Propellant-powered ("powder-actuated") nail guns fall into two broad categories: Either type can, with the right cartridge loads, be very powerful, driving a nail or other fastener into hard concrete, stone, rolled steelwork, etc., with ease. Powered by
4270-460: Is many more fasteners per load, but at the expense of extra weight. Industrial nailers designed for use against steel or concrete may have a self-loading action for the explosive caps, but most need nails to be loaded by hand. Nail guns vary in the length and gauge (thickness) of nails they can drive. The smallest size of fasteners are normally 23 gauge (0.025 inches or 0.64 millimetres in diameter), commonly called "pin nailers" and generally have only
4392-524: Is rapidly gaining ground as users find that it leaves a much smaller hole than brad nails , thereby eliminating the time normally taken to fill holes and presenting a far better looking finished product. The next size up is the 18 gauge (1.02 mm diameter) fixing, often referred to as a " brad ". These fastenings are also used to fix mouldings but can be used in the same way as the smaller 22 to 24 gauge fastenings. Their greater strength leads to their use in trim carpentry on hardwoods where some hole filling
4514-405: Is safer, requires the nose contact to be depressed before the manual trigger, rather than simultaneously with the trigger. Approximately 65% to 69% of injuries from contact-trip tools could be prevented through the use of a sequential-trip trigger, according to the CDC. There is recoil associated with the discharge of a nail from a nail gun. Contact triggers allow the gun to fire unintended nails if
4636-854: Is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services , and is headquartered in Atlanta, Georgia . The agency's main goal is the protection of public health and safety through the control and prevention of disease, injury, and disability in the US and worldwide. The CDC focuses national attention on developing and applying disease control and prevention. It especially focuses its attention on infectious disease , food borne pathogens , environmental health , occupational safety and health , health promotion , injury prevention , and educational activities designed to improve
4758-567: The Beverly Hills neighborhood surrounding the country club. When the XF-11 finally came to a halt after destroying three houses, the fuel tanks exploded, setting fire to the aircraft and a nearby home at 808 North Whittier Drive owned by Charles E. Meyer. Hughes managed to pull himself out of the flaming wreckage but lay beside the aircraft until he was rescued by U.S. Marine Corps Master Sergeant William L. Durkin, who happened to be in
4880-603: The Ebola virus . The program, called the Federal Select Agent Program, calls for inspections of labs in the U.S. that work with dangerous pathogens. During the 2014 Ebola outbreak in West Africa , the CDC helped coordinate the return of two infected American aid workers for treatment at Emory University Hospital , the home of a special unit to handle highly infectious diseases. As a response to
5002-722: The H-4 Hercules . The weather conditions at the lake during the day were ideal and he enjoyed Las Vegas at night. On May 17, 1943, Hughes flew the Sikorsky from California, carrying two Civil Aeronautics Authority (CAA) aviation inspectors, two of his employees, and actress Ava Gardner . Hughes dropped Gardner off in Las Vegas and proceeded to Lake Mead to conduct qualifying tests in the S-43. The test flight did not go well. The Sikorsky crashed into Lake Mead, killing CAA inspector Ceco Cline and Hughes' employee Richard Felt. Hughes suffered
Nail gun - Misplaced Pages Continue
5124-519: The Hughes Research Laboratories , which focused on advanced developments in microelectronics, information & systems sciences, materials, sensors, and photonics; their work-space spans from basic research to product delivery. It has particularly emphasized capabilities in high-performance integrated circuits, high-power lasers, antennas, networking, and smart materials. On July 14, 1938, Hughes set another record by completing
5246-686: The Hughes Space and Communications Company in 1961. In 1953 Howard Hughes gave all his stock in the Hughes Aircraft Company to the newly formed Howard Hughes Medical Institute, thereby turning the aerospace and defense contractor into a tax-exempt charitable organization. The Howard Hughes Medical Institute sold Hughes Aircraft in 1985 to General Motors for $ 5.2 billion. In 1997 General Motors sold Hughes Aircraft to Raytheon and in 2000, sold Hughes Space & Communications to Boeing. A combination of Boeing, GM, and Raytheon acquired
5368-784: The Hughes Tool Company purchased the North Las Vegas Air Terminal. Originally known as Summa Corporation , the Howard Hughes Corporation formed in 1972 when the oil-tools business of Hughes Tool Company, then owned by Howard Hughes Jr., floated on the New York Stock Exchange under the "Hughes Tool" name. This forced the remaining businesses of the "original" Hughes Tool to adopt a new corporate name: "Summa". The name "Summa"—Latin for "highest"—was adopted without
5490-636: The Korean War spurred the creation of the Epidemic Intelligence Service (EIS) as a two-year postgraduate training program in epidemiology. The success of the EIS program led to the launch of Field Epidemiology Training Programs (FETP) in 1980, training more than 18,000 disease detectives in over 80 countries. In 2020, FETP celebrated the 40th anniversary of the CDC's support for Thailand's Field Epidemiology Training Program. Thailand
5612-566: The National Institute for Occupational Safety and Health (NIOSH) issued a nail gun safety guide that details practical steps to prevent injuries including use of tools with sequential triggers, training prior to use, and use of appropriate protective equipment such as eye protection. In June 2013, NIOSH released an instructional comic providing information on nail gun hazards and ways to use the device properly. Research aimed at reducing nail gun accidents among frame carpenters , among
5734-933: The Public Health Service Act to support the mission of CDC in partnership with the private sector, including organizations, foundations, businesses, educational groups, and individuals. From 1995 to 2022, the Foundation raised over $ 1.6 billion and launched more than 1,200 health programs. Bill Cosby formerly served as a member of the Foundation's Board of Directors, continuing as an honorary member after completing his term. The Foundation engages in research projects and health programs in more than 160 countries every year, including in focus areas such as cardiovascular disease , cancer , emergency response , and infectious diseases , particularly HIV/AIDS , Ebola , rotavirus , and COVID-19 . In 2015, BMJ associate editor Jeanne Lenzer raised concerns that
5856-565: The Public Health Service reorganizations of 1966–1973 , it was promoted to being a principal operating agency of PHS. It was renamed to the plural Centers for Disease Control effective October 14, 1980, as the modern organization of having multiple constituent centers was established. By 1990, it had four centers formed in the 1980s: the Center for Infectious Diseases, Center for Chronic Disease Prevention and Health Promotion,
5978-646: The William P. Hobby Airport in Houston, Texas —known at the time as Houston Municipal Airport—was renamed after Hughes, but the name was changed back due to public outrage over naming the airport after a living person. Hughes also had a role in the financing of the Boeing 307 Stratoliner for TWA, and the design and financing of the Lockheed L-049 Constellation . Other aviator awards include:
6100-612: The airport in Glendale , CA. Operating from there, the most technologically important aircraft he commissioned was the Hughes H-1 Racer . On September 13, 1935, Hughes, flying the H-1, set the landplane airspeed record of 352 mph (566 km/h) over his test course near Santa Ana, California ( Giuseppe Motta reaching 362 mph in 1929 and George Stainforth reached 407.5 mph in 1931, both in seaplanes). This marked
6222-562: The flight operations manager. While Hughes had previously been relatively obscure despite his wealth, better known for dating Katharine Hepburn , New York City now gave him a ticker-tape parade in the Canyon of Heroes . Hughes and his crew were awarded the 1938 Collier Trophy for flying around the world in record time. He was awarded the Harmon Trophy in 1936 and 1938 for the record-breaking global circumnavigation. In 1938
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#17327826011756344-556: The two-cone roller bit in 1909, which allowed rotary drilling for petroleum in previously inaccessible places. The senior Hughes made the shrewd and lucrative decision to commercialize the invention by leasing the bits instead of selling them, obtaining several early patents, and founding the Hughes Tool Company in 1909. Hughes' uncle was the famed novelist, screenwriter, and film director Rupert Hughes . A 1941 affidavit birth certificate of Hughes, signed by his aunt Annette Gano Lummis and by Estelle Boughton Sharp, states that he
6466-605: The "gift" was Robert W. Woodruff , chairman of the board of The Coca-Cola Company . Woodruff had a long-time interest in malaria control, which had been a problem in areas where he went hunting. The same year, the PHS transferred its San Francisco based plague laboratory into the CDC as the Epidemiology Division, and a new Veterinary Diseases Division was established. In 1951, Chief Epidemiologist Alexander Langmuir's warnings of potential biological warfare during
6588-587: The 1930s. He was inducted into the National Aviation Hall of Fame in 1973 and was included in Flying magazine's 2013 list of the 51 Heroes of Aviation, ranked at No. 25. During his final years, Hughes extended his financial empire to include several major businesses in Las Vegas , such as real estate, hotels, casinos, and media outlets. Known at the time as one of the most powerful men in
6710-564: The 2014 Ebola outbreak, Congress passed a Continuing Appropriations Resolution allocating $ 30,000,000 towards CDC's efforts to fight the virus. The CDC also works on non-communicable diseases, including chronic diseases caused by obesity , physical inactivity and tobacco-use. The work of the Division for Cancer Prevention and Control, led from 2010 by Lisa C. Richardson , is also within this remit. The CDC implemented their National Action Plan for Combating Antibiotic Resistant Bacteria as
6832-567: The 45-minute limit decreed by the USAAF, possibly distracted by landing gear retraction problems. An oil leak caused one of the contra-rotating propellers to reverse pitch, causing the aircraft to yaw sharply and lose altitude rapidly. Hughes attempted to save the aircraft by landing it at the Los Angeles Country Club golf course, but just seconds before reaching the course, the XF-11 started to drop dramatically and crashed in
6954-652: The Administrator of the Agency for Toxic Substances and Disease Registry . Twenty directors have served the CDC or its predecessor agencies, including three who have served during the Trump administration (including Anne Schuchat who twice served as acting director) and three who have served during the Carter administration (including one acting director not shown here). Two served under Bill Clinton, but only one under
7076-762: The Bibesco Cup of the Fédération Aéronautique Internationale in 1938, the Octave Chanute Award in 1940, and a special Congressional Gold Medal in 1939 "in recognition of the achievements of Howard Hughes in advancing the science of aviation and thus bringing great credit to his country throughout the world". President Harry S. Truman sent the Congressional medal to Hughes after the F-11 crash. After his around-the-world flight, Hughes had declined to go to
7198-471: The CDC continued to be an advocate for public health issues and pushed to extend its responsibilities to many other communicable diseases . In 1947, the CDC made a token payment of $ 10 to Emory University for 15 acres (61,000 m ) of land on Clifton Road in DeKalb County, still the home of CDC headquarters as of 2019. CDC employees collected the money to make the purchase. The benefactor behind
7320-485: The CDC would make drastic changes in the wake of mistakes during the COVID-19 pandemic. She outlined an overhaul of how the CDC would analyze and share data and how they would communicate information to the general public. In her statement to all CDC employees, she said: "For 75 years, CDC and public health have been preparing for COVID-19, and in our big moment, our performance did not reliably meet expectations." Based on
7442-576: The Center for Environmental Health and Injury Control, and the Center for Prevention Services; as well as two centers that had been absorbed by CDC from outside: the National Institute for Occupational Safety and Health in 1973, and the National Center for Health Statistics in 1987. An act of the United States Congress appended the words "and Prevention" to the name effective October 27, 1992. However, Congress directed that
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#17327826011757564-405: The D-2 and powered by two Pratt & Whitney R-4360 -31 engines, each driving a set of contra-rotating propellers . Only two prototypes were completed; the second one had a conventional single propeller per side. Hughes was almost killed on July 7, 1946, while performing the first flight of the XF-11 near Hughes Airfield at Culver City, California . Hughes extended the test flight well beyond
7686-542: The D-2 returned to the hangar for extensive changes to its wings, and Hughes proposed to redesignate it as the D-5. However, in November 1944, the still-incomplete D-2 was destroyed in a hangar fire reportedly caused by a lightning strike. In the spring of 1943 Hughes spent nearly a month in Las Vegas , test-flying his Sikorsky S-43 amphibious aircraft, practicing touch-and-go landings on Lake Mead in preparation for flying
7808-444: The D-2, strenuously objected because this undercut his argument that the XF-11 was a modified D-2 rather than a new design. Protracted negotiations caused months of delays but ultimately yielded few design concessions. The war ended before the first XF-11 prototype was completed and the F-11 production contract was canceled. The XF-11 emerged in 1946 as an all-metal, twin-boom, three-seat reconnaissance aircraft, substantially larger than
7930-739: The H-1 Racer was donated to the Smithsonian . In 1932 Hughes founded the Hughes Aircraft Company , a division of Hughes Tool Company, in a rented corner of a Lockheed Aircraft Corporation hangar in Burbank, California, to build the H-1 racer. Shortly after founding the company, Hughes used the alias "Charles Howard" to accept a job as a baggage handler for American Airlines. He was soon promoted to co-pilot. Hughes continued to work for American Airlines until his real identity
8052-652: The Lakeside Golf Club, Wilshire Country Club , or the Bel-Air Country Club . Partners included George Von Elm or Ozzie Carlton. After Hughes hurt himself in the late 1920s, his golfing tapered off, and after his XF-11 crash, Hughes was unable to play at all. Hughes withdrew from Rice University shortly after his father's death. On June 1, 1925, he married Ella Botts Rice, daughter of David Rice and Martha Lawson Botts of Houston, and great-niece of William Marsh Rice , for whom Rice University
8174-546: The Nixon to Ford terms. The CDC's programs address more than 400 diseases, health threats, and conditions that are major causes of death, disease, and disability. The CDC's website has information on various infectious (and noninfectious) diseases, including smallpox , measles , and others. The CDC targets the transmission of influenza , including the H1N1 swine flu, and launched websites to educate people about hygiene. Within
8296-731: The U.S. The CDC budget for fiscal year 2024 is $ 11.581 billion. As of 2021, CDC staff numbered approximately 15,000 personnel (including 6,000 contractors and 840 United States Public Health Service Commissioned Corps officers) in 170 occupations. Eighty percent held bachelor's degrees or higher; almost half had advanced degrees (a master's degree or a doctorate such as a PhD, D.O. , or M.D. ). Common CDC job titles include engineer, entomologist , epidemiologist , biologist, physician, veterinarian , behavioral scientist , nurse , medical technologist , economist, public health advisor, health communicator, toxicologist , chemist, computer scientist , and statistician. The CDC also operates
8418-489: The USAAC) struggled to define a mission for the D-2, which lacked both the maneuverability of a fighter and the payload of a bomber , and was highly skeptical of the extensive use of plywood; however, the project was kept alive by high-level intervention from General Henry H. Arnold . The prototype was brought to Harper's Dry Lake in California in great secrecy in 1943 and first flew on June 20 of that year. The initial test flights revealed serious flight control problems, so
8540-402: The Venereal Disease Division of the U.S. Public Health Service (PHS) was transferred to the CDC in 1957. Shortly thereafter, Tuberculosis Control was transferred (in 1960) to the CDC from PHS, and then in 1963 the Immunization program was established. It became the National Communicable Disease Center effective July 1, 1967, and the Center for Disease Control on June 24, 1970. At the end of
8662-496: The WHO to implement the International Health Regulations (IHR) , an agreement between 196 countries to prevent, control, and report on the international spread of disease, through initiatives including the Global Disease Detection Program (GDD). The CDC has also been involved in implementing the U.S. global health initiatives President's Emergency Plan for AIDS Relief (PEPFAR) and President's Malaria Initiative . The CDC collects and publishes health information for travelers in
8784-541: The White House to collect it. Development of the D-2 began around 1937, but little is known about its early gestation because Hughes' archives on the aircraft have not been made public. Aircraft historian René Francillon speculates that Hughes designed the aircraft for another circumnavigation record attempt, but the outbreak of World War II closed much of the world's airspace and made it difficult to buy aircraft parts without government approval, so he decided to sell
8906-512: The agency's activities in a particular area of expertise while also providing intra-agency support and resource-sharing for cross-cutting issues and specific health threats. As of the most recent reorganization in February 2023, the CIOs are: The Office of Public Health Preparedness was created during the 2001 anthrax attacks shortly after the terrorist attacks of September 11, 2001. Its purpose
9028-667: The agency. The new agency was a branch of the U.S. Public Health Service and Atlanta was chosen as the location because malaria was endemic in the Southern United States. The agency changed names (see infobox on top) before adopting the name Communicable Disease Center in 1946. Offices were located on the sixth floor of the Volunteer Building on Peachtree Street. With a budget at the time of about $ 1 million, 59 percent of its personnel were engaged in mosquito abatement and habitat control with
9150-507: The aircraft to the U.S. Army instead. In December 1939, Hughes proposed that the United States Army Air Corps (USAAC) procure it as a "pursuit type airplane" (i.e. a fighter aircraft ). It emerged as a two or three-seat twin-boom aircraft powered by two Pratt & Whitney R-2800 -49 engines and constructed mostly of Duramold , a type of molded plywood . The United States Army Air Forces (USAAF, successor to
9272-544: The application. Full-head nails have greater pull-out resistance than clipped head nails and are mandated by code in many hurricane zones for structural framing. Another type of fastening commonly found in construction is the strap fastening which is roughly analogous to the large head clout nail . These are used in conjunction with a strap shot nailer (or positive placement nailer UK ) to fix metalwork such as joist hangers, corner plates, strengthening straps, etc. to timber structures. They differ from conventional nailers in that
9394-491: The approval of Hughes himself, who preferred to keep his own name on the business, and suggested "HRH Properties" (for Hughes Resorts and Hotels, and also his own initials). In 1988 Summa announced plans for Summerlin , a master-planned community named for the paternal grandmother of Howard Hughes, Jean Amelia Summerlin. Initially staying in the Desert Inn , Hughes refused to vacate his room, and instead decided to purchase
9516-475: The area of vaccine safety. CDC also runs a program called V-safe, a smartphone web application that allows COVID-19 vaccine recipients to be surveyed in detail about their health in response to getting the shot. The CDC Foundation operates independently from CDC as a private, nonprofit 501(c)(3) organization incorporated in the State of Georgia . The creation of the Foundation was authorized by section 399F of
9638-507: The area visiting friends. Hughes sustained significant injuries in the crash, including a crushed collar bone , multiple cracked ribs, crushed chest with collapsed left lung, shifting his heart to the right side of the chest cavity, and numerous third-degree burns . An oft-told story said that Hughes sent a check to the Marine weekly for the remainder of his life as a sign of gratitude. Noah Dietrich asserted that Hughes did send Durkin $ 200
9760-439: The company agree to remove the production of the film Jet Pilot from David O. Selznick to Hughes. Hughes produced the film during the years 1949-1950 and owned RKO and in turn the distribution for the film. However, the film was not released until 1957 by Universal Pictures due in part to the subsequent events that would take place at RKO Distribution , and largely due the extra aerial film footage that had been filmed over
9882-610: The division are two programs: the Federal Select Agent Program (FSAP) and the Import Permit Program. The FSAP is run jointly with an office within the U.S. Department of Agriculture, regulating agents that can cause disease in humans, animals, and plants. The Import Permit Program regulates the importation of "infectious biological materials." The CDC runs a program that protects the public from rare and dangerous substances such as anthrax and
10004-469: The entire hotel. Hughes extended his financial empire to include Las Vegas real estate, hotels, and media outlets, spending an estimated $ 300 million, and using his considerable powers to acquire many of the well-known hotels, especially the venues connected with organized crime . He quickly became one of the most powerful men in Las Vegas. He was instrumental in changing the image of Las Vegas from its Wild West and, later, Mafia / organized crime roots into
10126-515: The findings of an internal report, Walensky concluded that "The CDC must refocus itself on public health needs, respond much faster to emergencies and outbreaks of disease, and provide information in a way that ordinary people and state and local health authorities can understand and put to use" (as summarized by the New York Times). The CDC is organized into "Centers, Institutes, and Offices" (CIOs), with each organizational unit implementing
10248-614: The first licensed ham-radio operators in Houston, having the assigned callsign W5CY (originally 5CY). At 12, Hughes was photographed for the local newspaper, which identified him as the first boy in Houston to have a "motorized" bicycle, which he had built from parts of his father's steam engine . He was an indifferent student, with a liking for mathematics, flying, and mechanics. He took his first flying lesson at 14, and attended Fessenden School in Massachusetts in 1921. After
10370-574: The first working laser, aircraft computer systems, missile systems, ion-propulsion engines (for space travel), commercial satellites, and other electronics systems. In 1948 Hughes created a new division of Hughes Aircraft: the Hughes Aerospace Group. The Hughes Space and Communications Group and the Hughes Space Systems Division were later spun off in 1948 to form their own divisions and ultimately became
10492-561: The flight was 322 mph (518 km/h). The H-1 Racer featured a number of design innovations: it had retractable landing gear (as Boeing Monomail had five years before), and all rivets and joints set flush into the body of the aircraft to reduce drag. The H-1 Racer is thought to have influenced the design of a number of World War II fighters such as the Mitsubishi A6M Zero , Focke-Wulf Fw 190 , and F8F Bearcat , although that has never been reliably confirmed. In 1975
10614-508: The front lines of outbreaks. The agency maintains staff in more than 60 countries, including some from the U.S. but more from the countries in which they operate. The agency's global divisions include the Division of Global HIV and TB (DGHT), the Division of Parasitic Diseases and Malaria (DPDM), the Division of Global Health Protection (DGHP), and the Global Immunization Division (GID). The CDC has been working with
10736-531: The general fixing of much softwood and MDF trim work (such as baseboard / skirtings , architraves , etc.) where the holes will be filled and the work painted afterwards. The largest sizes of conventional collated fastenings are the clipped head and full head nails which are used in framing, fencing and other forms of structural and exterior work. These nails generally have a shank diameter of 0.11 to 0.13 in (2.8 to 3.3 mm) although some manufacturers offer smaller diameter nails as well. General lengths are in
10858-663: The gigantic H-4 Hercules (the Spruce Goose , 1947), the largest flying boat in history with the longest wingspan of any aircraft from the time it was built until 2019. He acquired and expanded Trans World Airlines and later acquired Air West , renaming it Hughes Airwest. Hughes won the Harmon Trophy on two occasions (1936 and 1938), the Collier Trophy (1938), and the Congressional Gold Medal (1939) all for his achievements in aviation throughout
10980-485: The health of United States citizens . The CDC also conducts research and provides information on non-infectious diseases , such as obesity and diabetes , and is a founding member of the International Association of National Public Health Institutes . The CDC's current Director is Mandy Cohen who assumed office on July 10, 2023. The Communicable Disease Center was founded July 1, 1946, as
11102-481: The heaviest users of nail guns, is ongoing. The most popular type of nail gun, which uses compressed air to drive its fasteners. Thus, it is dependent on both a compressor and a power source to operate the compressor (either direct electrical current or an on-site generator), and encumbered in use by a cumbersome high-pressure air hose (which may be extremely stiff in cold weather, and retain an annoying "memory" of having been coiled at any time). A pneumatic nail gun
11224-465: The hospital bed specifically to alleviate the pain caused by moving with severe burn injuries. He never used the bed that he designed. Hughes' doctors considered his recovery almost miraculous. Many attribute his long-term dependence on opiates to his use of codeine as a painkiller during his convalescence. Yet Dietrich asserts that Hughes recovered the "hard way—no sleeping pills, no opiates of any kind". The trademark mustache he wore afterward hid
11346-442: The initialism CDC be retained because of its name recognition. Since the 1990s, the CDC focus has broadened to include chronic diseases , disabilities , injury control, workplace hazards , environmental health threats, and terrorism preparedness. CDC combats emerging diseases and other health risks, including birth defects , West Nile virus , obesity , avian , swine , and pandemic flu , E. coli , and bioterrorism , to name
11468-432: The last time in history that an aircraft built by a private individual set the world airspeed record. A year and a half later, on January 19, 1937, flying the same H-1 Racer fitted with longer wings, Hughes set a new transcontinental airspeed record by flying non-stop from Los Angeles to Newark in seven hours, 28 minutes, and 25 seconds (beating his own previous record of nine hours, 27 minutes). His average ground-speed over
11590-763: The limited budgets required to make such films during Hughes' tenure. Hughes reportedly walked away from RKO having made $ 6.5 million in personal profit. According to Noah Dietrich , Hughes made a $ 10,000,000 profit from the sale of the theaters and made a profit of $ 1,000,000 from his 7-year ownership of RKO. According to Noah Dietrich , "Land became a principal asset for the Hughes empire". Hughes acquired 1200 acres in Culver City for Hughes Aircraft, bought 7 sections [4,480 acres] in Tucson for his Falcon missile-plant, and purchased 25,000 acres near Las Vegas. In 1968,
11712-573: The longest wingspan of any aircraft (the next-largest wingspan was about 310 ft (94 m)). (The Hercules is no longer the longest nor heaviest aircraft ever built - surpassed by the Antonov An-225 Mriya produced in 1985.) The Hercules flew only once for one mile (1.6 km), and 70 feet (21 m) above the water, with Hughes at the controls, on November 2, 1947. Centers for Disease Control and Prevention The Centers for Disease Control and Prevention ( CDC )
11834-470: The middle of the solenoid. If a series of solenoids is used (which makes the nail gun into a type of coilgun ), to get more power, each solenoid must be switched off when the piston has reached the middle of the solenoid. In multi-solenoid coilguns a short burst of power from a big capacitor (one attached to each solenoid) comes at the right time to propel the piston or projectile. For more information see Coilguns for ferromagnetic projectiles. A pin nailer
11956-650: The movie industry, disrupted studio operations at RKO even further. In 1953, Hughes became involved with a high-profile lawsuit as part of the settlement of the United States v. Paramount Pictures, Inc. Antitrust Case. As a result of the hearings, the shaky status of RKO became increasingly apparent. A steady stream of lawsuits from RKO's minority shareholders had grown to become extremely annoying to Hughes. They had accused him of financial misconduct and corporate mismanagement. Since Hughes wanted to focus primarily on his aircraft manufacturing and TWA holdings during
12078-597: The nose hits the wood surface or a previously placed nail following recoil. Nailers with touch tip (contact) triggers are susceptible to this double firing. According to a 2002 engineering report from the Consumer Products Safety Commission (CPSC), the recoil and firing of the second nail occurs well before the trigger can be released. Acute injury rates are twice as high among users of tools with contact triggers. In September 2011 The Occupational Safety and Health Administration (OSHA) and
12200-439: The objective of control and eradication of malaria in the United States (see National Malaria Eradication Program ). Among its 369 employees, the main jobs at CDC were originally entomology and engineering. In CDC's initial years, more than six and a half million homes were sprayed, mostly with DDT . In 1946, there were only seven medical officers on duty and an early organization chart was drawn. Under Joseph Walter Mountin ,
12322-425: The operator used it while standing and could nail 40 to 60 nails a minute. It had a capacity of 400 to 600 nails. Nail guns use fasteners mounted in long clips (similar to a stick of staples ) or collated in a paper or plastic carrier, depending on the design of the nail gun. Some full head nail guns, especially those used for pallet making and roofing, use long plastic or wire collated coils. Some strip nailers use
12444-505: The point of the fastening is not sheathed so it can be exactly positioned before firing the nail gun. Other specialist nailers are also available which can drive spikes up to 6 + 1 ⁄ 4 inches (16 cm) long, fix wood to steel, etc. A palm nailer is a small, lightweight tool, typically pneumatic, which fits into the palm of one hand. It is convenient for working in tight spaces and can drive both short and long nails. Repeated hammer blows (of around 40 hits per second) rather than
12566-415: The production company struggled under his control and ultimately ceased operations in 1957. Through his interest in aviation and aerospace travel, Hughes formed the Hughes Aircraft Company in 1932, hiring numerous engineers, designers, and defense contractors . He spent the rest of the 1930s and much of the 1940s setting multiple world air speed records and building the Hughes H-1 Racer (1935) and
12688-579: The project, thinking it would siphon resources from higher-priority programs, but Hughes' powerful allies in Washington, D.C. advocated it. After disputes, Kaiser withdrew from the project and Hughes elected to continue it as the H-4 Hercules. However, the aircraft was not completed until after World War II. The Hercules was the world's largest flying boat, the largest aircraft made from wood, and, at 319 feet 11 inches (97.51 m), had
12810-545: The range 2 to 3 + 1 ⁄ 3 in (51 to 85 mm). Shank styles include plain, ring annular, twisted, etc. and a variety of materials and finishes are offered including plain steel, galvanized steel, sherardised steel, stainless steel, etc. depending on the pull-out resistance, corrosion resistance, etc. required for the given application. These sizes of fastenings are available in stick collated form (often 20° to 21° for full head, 28° to 34° for clipped head) or coil form (for use in pallet/roofing nailers) depending on
12932-471: The reorganization of CDC to "confront the challenges of 21st-century health threats". She established four Coordinating Centers. In 2009 the Obama administration re-evaluated this change and ordered them cut as an unnecessary management layer. As of 2013, the CDC's Biosafety Level 4 laboratories were among the few that exist in the world. They included one of only two official repositories of smallpox in
13054-404: The rights to pictures that he had personally produced, including those made at RKO. He also retained Jane Russell's contract. For Howard Hughes, this was the virtual end of his 25-year involvement in the motion-picture industry. However, his reputation as a financial wizard emerged unscathed. During that time period, RKO became known as the home of classic film noir productions, thanks in part to
13176-509: The state of Nevada, he is largely credited with transforming Las Vegas into a more refined cosmopolitan city. After years of mental and physical decline, Hughes died of kidney failure in 1976. His legacy is maintained through the Howard Hughes Medical Institute and Howard Hughes Holdings Inc. Howard Robard Hughes Jr. was the only child of Allene Stone Gano (1883–1922) and of Howard R. Hughes Sr. (1869–1924),
13298-845: The successor to the World War II Malaria Control in War Areas program of the Office of National Defense Malaria Control Activities. Preceding its founding, organizations with global influence in malaria control were the Malaria Commission of the League of Nations and the Rockefeller Foundation . The Rockefeller Foundation greatly supported malaria control, sought to have the governments take over some of its efforts, and collaborated with
13420-449: The tools know little about the dangers associated with their use or safety features that can prevent injuries. Injuries to the fingers, hands, and feet are among the three most common, but there are also injuries that involve other body areas such as arms and legs as well as internal organs. Some of these injuries are serious and some have resulted in death. All kinds of nail guns can be dangerous, so safety precautions similar to those for
13542-567: The world, with the other one located at the State Research Center of Virology and Biotechnology VECTOR in the Russian Federation. In 2014, the CDC revealed they had discovered several misplaced smallpox samples while their lab workers were "potentially infected" with anthrax . The city of Atlanta annexed the property of the CDC headquarters effective January 1, 2018, as a part of the city's largest annexation within
13664-463: The years after the film's 1950 completion. Hughes was undertaking a final edit before the 1957 release. After his acquisition of RKO, Hughes shut down production at the studio for six months, during which time he ordered investigations into the political leanings of every remaining RKO employee. Only after ensuring that the stars under contract to RKO had no suspect affiliations would Hughes approve completed pictures to be sent back for re-shooting. This
13786-516: The years of the Korean War of 1950 to 1953, Hughes offered to buy out all other RKO stockholders in order to dispense with their distractions . By the end of 1954, Hughes had gained near-total control of RKO at a cost of nearly $ 24 million, becoming the first sole owner of a major Hollywood studio since the silent-film era . Six months later Hughes sold the studio to the General Tire and Rubber Company for $ 25 million. Hughes retained
13908-408: Was able to arrange for his previous films with United Artists (UA), The Outlaw , Mad Wednesday , and Vendetta to be transferred to RKO. In exchange for the three completed being removed from UA distribution, Hughes and James and Theodore Nasser of General Service Studios would provide the financing of three independent films for distribution by UA. In terms of negotiations directly with RKO,
14030-528: Was an American aerospace engineer , business magnate , film producer , investor , philanthropist and aircraft pilot . He was best known during his lifetime as one of the richest and most influential people in the world . He first became prominent as a film producer, and then as an important figure in the aviation industry. Later in life, he became known for his eccentric behavior and reclusive lifestyle—oddities that were caused in part by his worsening obsessive-compulsive disorder (OCD), chronic pain from
14152-624: Was born on December 24, 1905, in Harris County, Texas . However, his certificate of baptism , recorded on October 7, 1906, in the parish register of St. John's Episcopal Church in Keokuk, Iowa , listed his date of birth as September 24, 1905, without any reference to the place of birth. At a young age, Hughes Jr. showed interest in science and technology. In particular, he had a great engineering aptitude, and built Houston's first "wireless" radio transmitter at age 11. He went on to be one of
14274-467: Was discovered. During and after World War II Hughes turned his company into a major defense contractor. The Hughes Helicopters division started in 1947 when helicopter manufacturer Kellett sold their latest design to Hughes for production. Hughes Aircraft became a major U.S. aerospace- and defense contractor, manufacturing numerous technology-related products that included spacecraft vehicles, military aircraft, radar systems, electro-optical systems,
14396-417: Was especially true of the women under contract to RKO at that time. If Hughes felt that his stars did not properly represent the political views of his liking or if a film's anti-communist politics were not sufficiently clear, he pulled the plug. In 1952, an abortive sale to a Chicago-based five-man syndicate, two of whom had a history of complaints about their business practices and none with any experience in
14518-539: Was named. They moved to Los Angeles, where he hoped to make a name for himself as a filmmaker. They moved into the Ambassador Hotel , and Hughes proceeded to learn to fly a Waco , while simultaneously producing his first motion picture, Swell Hogan . Hughes enjoyed a highly successful business career beyond engineering, aviation and filmmaking; many of his career endeavors involved varying entrepreneurial roles. Ralph Graves persuaded Hughes to finance
14640-541: Was not released nationally until 1946. The film featured Jane Russell , who received considerable attention from industry censors, this time owing to her revealing costumes. From the 1940s to the late 1950s, the Hughes Tool Company ventured into the film industry when it obtained partial ownership of the RKO companies, which included RKO Pictures, RKO Studios, a chain of movie theaters known as RKO Theatres and
14762-461: Was the first FETP site created outside of North America and is found in numerous countries, reflecting CDC's influence in promoting this model internationally. The Training Programs in Epidemiology and Public Health Interventions Network ( TEPHINET ) has graduated 950 students. The mission of the CDC expanded beyond its original focus on malaria to include sexually transmitted diseases when
14884-529: Was to coordinate among the government the response to a range of biological terrorism threats. Most CDC centers are located in Atlanta . Building 18, which opened in 2005 at the CDC's main Roybal campus (named in honor of the late Representative Edward R. Roybal ), contains the premier BSL4 laboratory in the United States. A few of the centers are based in or operate other domestic locations: In addition, CDC operates quarantine facilities in 20 cities in
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