What was the best-known invention of the man that the cryogenic storage dewar was named after?
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Cryogenic storage dewar A cryogenic storage dewar (named after James Dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature. Cryogenic storage dewars may take several different forms including open buckets, flasks with loose-fitting stoppers and self-pressurising tanks. All dewars have walls constructed from two or more layers, with a high vacuum maintained between the layers. This provides very good thermal insulation between the interior and exterior of the dewar, which reduces the rate at which the contents boil away. Precautions are taken in the design of dewars to safely manage the gas which is released as the liquid slowly boils. The simplest dewars allow the gas to escape either through an open top or past a loose-fitting stopper to prevent the risk of explosion. More sophisticated dewars trap the gas above the liquid, and hold it at high pressure. This increases the boiling point of the liquid, allowing it to be stored for extended periods. Excessive vapour pressure is released automatically through safety valves. The method of decanting liquid from a dewar depends upon its design. Simple dewars may be tilted, to pour liquid from the neck. Self-pressurising designs use the gas pressure in the top of the dewar to force the liquid upward through a pipe leading to the neck.
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James Dewar Sir James Dewar FRS FRSE (20 September 1842 – 27 March 1923) was a Scottish chemist and physicist. He is probably best known today for his invention of the vacuum flask, which he used in conjunction with extensive research into the liquefaction of gases. He was also particularly interested in atomic and molecular spectroscopy, working in these fields for more than 25 years.
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Benjamin Herschel Babbage Benjamin Herschel Babbage (6 August 1815 – 22 October 1878) was an English engineer, scientist, explorer and politician, best known for his work in the colony of South Australia. He invariably signed his name "B. Herschel Babbage" and was frequently referred to as "Herschel Babbage".
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Philip K. Bates Philip K. Bates (July 2, 1902 – December 21, 1993) was an American food scientist who was involved in the development of food freezing, dehydration, and concentration both in academia and in industry.
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Frederick McKinley Jones Frederick McKinley Jones (May 17, 1893 – February 21, 1961) was an African-American inventor, entrepreneur, winner of the National Medal of Technology, and inductee of the National Inventors Hall of Fame. His innovations in refrigeration brought great improvement to the long-haul transportation of perishable goods. He cofounded Thermo King.
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Dave Lennox David Lennox (April 15, 1855 – February 15, 1947) was an American inventor and businessman. A furnace manufacturing business he founded in 1895 in Marshalltown, Iowa evolved into what is today known as Lennox International, a global corporation specializing in air conditioning, heating, and commercial refrigeration. Lennox helped to develop what has been described as the first riveted-steel furnace in 1895. His contributions to furnace design have been described as significant steps forward in durability and efficiency from the cast iron furnaces commonly in use near the end of the 19th century.
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Bob Widlar Robert John (Bob) Widlar (pronounced "wide-lar"; November 30, 1937 – February 27, 1991) was an American electronics engineer and a designer of linear integrated circuits (ICs).
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Nikola Tesla in popular culture Nikola Tesla (10 July 1856 – 7 January 1943) is portrayed in multiple forms of popular culture. The Serbian-American engineer has particularly been depicted in science fiction, a genre which is well-suited to address his inventions; while often exaggerated, the fictionalized variants build mostly upon his own alleged claims or ideas. A popular, growing fixation among science fiction, comic book, and speculative history storytellers is to portray Tesla as a member of a secret society, along with other luminaries of science. The impacts of the technologies invented by Nikola Tesla are a recurring theme in the steampunk genre of alternate technology science-fiction.
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Harold Beverage Harold Henry "Bev" Beverage (October 14, 1893 – January 27, 1993) is perhaps most widely known today for his invention and development of the wave antenna, which came to be known as the Beverage antenna and which for the last few decades has seen a resurgence in use within the amateur radio and broadcast DXing hobbyist communities. Less widely known (outside of the community of science history researchers) is that Bev was a pioneer of radio engineering and his engineering research paralleled the development of radio transmission technology throughout his professional career with significant contributions not only in the field of radio frequency antennas but also radio frequency propagation and systems engineering.
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Victor Farris Victor Farris (January 29, 1910 – March 7, 1985) was an American inventor and businessman. While some sources say he invented the paper milk carton, no patent was ever filed under his name.
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Forrest Bird Forrest Morton Bird (June 9, 1921 – August 2, 2015) was an American aviator, inventor, and biomedical engineer. He is best known for having created some of the first reliable mass-produced mechanical ventilators for acute and chronic cardiopulmonary care.
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IEEE Maxwell Award James Clerk Maxwell FRS FRSE, is the father of electromagnetic waves, known for his famous
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Charles Eaves Charles Eaves (19082006) was a Canadian scientist who extended the storage of apples by controlling levels of oxygen and carbon dioxide. He built the first controlled atmosphere (CA) storage in the Western Hemisphere in 1939 at Port Williams in Nova Scotia. After World War II his research at the Kentville Experimental Farm established storage methods that were adopted worldwide. He later advanced fruit storage in Turkey and Brazil for the United Nations
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Simon Ramo Simon "Si" Ramo (May 7, 1913 – June 27, 2016) was an American engineer, businessman, and author. He led development of microwave and missile technology and is sometimes known as the father of the intercontinental ballistic missile (ICBM). He also developed General Electric's electron microscope. He has been partly responsible for the creation of two Fortune 500 companies, Ramo-Wooldridge (TRW after 1958) and Bunker-Ramo (now part of Honeywell).
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Ernest L. Daman Ernest Ludwig Daman (born March 14, 1923) is a German/American mechanical engineer, inventor, and business executive, who was Senior Vice President of Foster Wheeler Corporation. He is known as president of the American Society of Mechanical Engineers in the year 1988-89.
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Peter Medawar Sir Peter Brian Medawar {'1': ", '2': ", '3': ", '4': "} ( ; 28 February 1915 – 2 October 1987) was a British biologist born in Brazil, whose work on graft rejection and the discovery of acquired immune tolerance was fundamental to the practice of tissue and organ transplants. For his works in immunology he is regarded as the "father of transplantation". He is remembered for his wit in real life and popular writings. Famous zoologists such as Richard Dawkins, referred to him as "the wittiest of all scientific writers", and Stephen Jay Gould, as "the cleverest man I have ever known".
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Franz Sacher Franz Sacher (19 December 1816 – 11 March 1907) was an Austrian confectioner, best known as the inventor of the world-famous chocolate cake, the Sachertorte.
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Guglielmo Marconi Guglielmo Marconi, 1st Marquis of Marconi ( ; ] ; 25 April 187420 July 1937) was an Italian inventor and electrical engineer known for his pioneering work on long-distance radio transmission and for his development of Marconi's law and a radio telegraph system. He is usually credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
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John Dewar, Sr. John Dewar (6 January 1805 - January 1880) was a Scottish businessman who founded John Dewar & Sons, Scotch whisky distillery in 1846.
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Leon Leonwood Bean Leon Leonwood Bean (October 13, 1872 – February 5, 1967) was an American inventor, author, outdoor enthusiast, and founder of the company L.L.Bean.
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John Augustus Just Dr. John Augustus Just (January 9, 1854 – September 13, 1908) was a German-born chemist and inventor. He is best known for his investigative work into recovery of precious metals from their ores and for completing the process for evaporating milk. For his scientific achievements, he was awarded a medal by the committee celebrating Berthelot’s 50th anniversary.
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Leo Baekeland Leo Henricus Arthur Baekeland FRSE(Hon) (November 14, 1863 – February 23, 1944) was a Belgian-American chemist. He is best known for the inventions of Velox photographic paper in 1893 and Bakelite in 1907. He has been called "The Father of the Plastics Industry" for his invention of Bakelite, an inexpensive, nonflammable and versatile plastic, which marked the beginning of the modern plastics industry.