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Harold Horton Sheldon
Harold Horton Sheldon (April 13, 1893 – December 23, 1964) was a Canadian-American physicist, scientist, inventor, teacher, editor and author. He was a science editor who wrote on futuristic subjects, especially pertaining to human space travel. Early life Sheldon was born on April 13, 1893, and raised in Brockville, Ontario. His parents were Harvey Sheldon and Mary Christian (Laqeau) Sheldon. The Sheldons immigrated to the United States in 1917. Education Sheldon attended Queen's University in Kingston, Ontario where he received his Bachelor of Arts degree in 1916 and Master of Arts degree in 1917. He received his Ph.D. in 1920 from the University of Chicago and was an assistant professor of physics there 1918 and 1919. He later attended Brooklyn Polytechnic Institute in New York City and received a degree in electrical engineering in 1934. Career Sheldon became a physics instructor at the University of Michigan in 1922. He served as science editor of The New York He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Tribune
The ''Chicago Tribune'' is a daily newspaper based in Chicago, Illinois, United States, owned by Tribune Publishing. Founded in 1847, and formerly self-styled as the "World's Greatest Newspaper" (a slogan for which WGN radio and television are named), it remains the most-read daily newspaper in the Chicago metropolitan area and the Great Lakes region. It had the sixth-highest circulation for American newspapers in 2017. In the 1850s, under Joseph Medill, the ''Chicago Tribune'' became closely associated with the Illinois politician Abraham Lincoln, and the Republican Party's progressive wing. In the 20th century under Medill's grandson, Robert R. McCormick, it achieved a reputation as a crusading paper with a decidedly more American-conservative anti-New Deal outlook, and its writing reached other markets through family and corporate relationships at the ''New York Daily News'' and the ''Washington Times-Herald.'' The 1960s saw its corporate parent owner, Tribune Company, rea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neon Sign
In the signage industry, neon signs are electric signs lighted by long luminous gas-discharge tubes that contain rarefied neon or other gases. They are the most common use for neon lighting, which was first demonstrated in a modern form in December 1910 by Georges Claude at the Paris Motor Show. While they are used worldwide, neon signs were popular in the United States from about the 1920s to 1950s. The installations in Times Square, many originally designed by Douglas Leigh, were famed, and there were nearly 2,000 small shops producing neon signs by 1940. Pages 221–223 describe Moore tubes. Pages 369–374 describe neon tube lighting. Page 385 discusses Risler's contributions to fluorescent coatings in the 1920s. Pages 388–391 discuss the development of the commercial fluorescent at General Electric in the 1930s. In addition to signage, neon lighting is used frequently by artists and architects, and (in a modified form) in plasma display panels and televisions. Paid access ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorimetry
Colorimetry is "the science and technology used to quantify and describe physically the human color perception". It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and related quantities. History The Duboscq colorimeter was invented by Jules Duboscq in 1870. Instruments Colorimetric equipment is similar to that used in spectrophotometry. Some related equipment is also mentioned for completeness. * A tristimulus colorimeter measures the tristimulus values of a color. * A spectroradiometer measures the absolute spectral radiance (intensity) or irradiance of a light source. * A spectrophotometer measures the spectral reflectance, transmittance, or relative irradiance of a color sample. * A ''spectrocolorimeter'' is a spectrophotometer that can ''calculate'' tristimulus values. * A densitometer measures the degree of light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheldon Colorscope
Sheldon may refer to: * Sheldon (name), a given name and a surname, and a list of people with the name Places Australia *Sheldon, Queensland *Sheldon Forest, New South Wales United Kingdom *Sheldon, Derbyshire, England *Sheldon, Devon, England *Sheldon, West Midlands, England * Sheldon Stone Circle, Aberdeenshire, Scotland *Sheldon Manor, Chippenham, Wiltshire United States * Sheldon, Illinois * Sheldon, Iowa * Sheldon, Minnesota * Sheldon, Missouri * Sheldon, New York * Sheldon, North Dakota * Sheldon, South Carolina * Sheldon, Texas * Sheldon, Vermont * Sheldon, Monroe County, Wisconsin * Sheldon, Rusk County, Wisconsin Other uses * Sheldon coin grading scale * Sheldon School, Chippenham, Wiltshire, England * Sheldon High School, several schools * The Sheldon, concert hall and art galleries in St. Louis, Missouri * ''Sheldon'' (webcomic), created by Dave Kellett * ''Young Sheldon'', created by Chuck Lorre and Steven Molaro * Sheldon, a character from the video game ''Splato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Edward Pendray
George Edward Pendray (May 19, 1901 – September 15, 1987) was an American public relations counselor, author, foundation executive, and an early advocate of rockets and spaceflight. He was associated with Robert H. Goddard and helped organize the National Aeronautics and Space Administration (NASA). He conceived the idea of a "time capsule" sealed container to preserve current everyday items for future historians and implemented his concept at the 1939 New York World's Fair. Pendray co-founded the American Interplanetary Society. Early life Pendray was born in Omaha, Nebraska, to John Hall Pendray and his wife, Louisa Wolfe. He grew up in Niobrara County, Wyoming and attended the University of Wyoming, graduating in 1924.Who Was Who in America, Vol 9 He then went to Columbia University, where he received his Master of Arts degree in 1925. Two years later, he married Leatrice M. Gregory. They had three daughters: Guenever, Elaine, and Lynette. Middle life Pendray became a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Interplanetary Society
The American Rocket Society (ARS) began its existence on , under the name of the American Interplanetary Society. It was founded by science fiction writers George Edward Pendray, G. Edward Pendray, David Lasser, Laurence Manning, Nat Schachner, Nathan Schachner, and others. Pendray corresponded with Willy Ley of the German rocket society, Verein für Raumschiffahrt, and visited him in 1931. The members originally conducted their own rocket experiments in New York and New Jersey. The society printed its own journal. The AIS did pioneering work in testing the design requirements of liquid-fueled rockets, with a number of successful test launches of ARS (rocket family), ARS rockets occurring in this period and pointing the way to the United States space program. Its name was changed to American Rocket Society on . In 1936, the American Rocket Society and its member Alfred Africano were awarded the Robert Esnault-Pelterie#Prix REP-Hirsch, Prix d'Astronautique by the Société astronomiq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Lasser
David Lasser (March 20, 1902 – May 5, 1996) was an American writer and political activist. Lasser is remembered as one of the most influential figures of early science fiction writing, working closely with Hugo Gernsback. He was also heavily involved in the workers’ rights struggles of the Great Depression. Early years Lasser was born in Baltimore, Maryland, to Jewish immigrant parents from Russia. His family moved to Newark, New Jersey, where he grew up. He left high school at 16 to enlist in the Army in World War I, lying about his age. After being gassed on the front lines in France, he was honourably discharged as a Sergeant in 1919. Despite never graduating from high school, he was admitted to M.I.T., graduating with a B.S. in Engineering Administration. In the late 1920s, Lasser moved to New York City, where his engineering background helped him land a job as managing editor of Hugo Gernsback's new science fiction magazine, ''Science Wonder Stories''. Lasser and his wr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Conquest Of Space (1931)
''The Conquest of Space'' is a nonfiction book written by David Lasser in 1930 and self-published in 1931. It was the first book written in English that presented rocketry and spaceflight in a serious manner. The book profiles a fictional journey to the Moon to explain the science of rocketry as it stood in 1931. It uses contemporary knowledge on rockets to create a reasonable description of the hardware necessary to make spaceflight possible. The book was out of print until 2002, when it was republished by Apogee Books. , the book remains in print. According to the Historical Dictionary of Science Fiction, it contains the earliest known use of the word "astrogator". Reception The book was generally well received. ''The New York Times'' stated on January 10, 1932 that "despite its literary and artistic faults the book cannot but capture the imagination of a reader interested in science." Harold Horton Sheldon Harold Horton Sheldon (April 13, 1893 – December 23, 1964) was a Can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustical Society Of America
The Acoustical Society of America (ASA) is an international scientific society founded in 1929 dedicated to generating, disseminating and promoting the knowledge of acoustics and its practical applications. The Society is primarily a voluntary organization of about 7500 members and attracts the interest, commitment, and service of many professionals. History In the summer of 1928, (See Wallace Clement Sabine.) Floyd R. Watson and Wallace Waterfall (1900–1974), a former doctoral student of Watson, were invited by UCLA's Vern Oliver Knudsen to an evening dinner at Knudsen's beach club in Santa Monica. The three physicists decided to form a society of acoustical engineers interested in architectural acoustics. In the early part of December 1928, Wallace Waterfall sent letters to sixteen people inquiring about the possibility of organizing such a society. Harvey Fletcher offered the use of the Bell Telephone Laboratories at 463 West Street in Manhattan as a meeting place for an orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Physical Society
The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of knowledge of physics. The society publishes more than a dozen scientific journals, including the prestigious '' Physical Review'' and ''Physical Review Letters'', and organizes more than twenty science meetings each year. APS is a member society of the American Institute of Physics. Since January 2021 the organization has been led by chief executive officer Jonathan Bagger. History The American Physical Society was founded on May 20, 1899, when thirty-six physicists gathered at Columbia University for that purpose. They proclaimed the mission of the new Society to be "to advance and diffuse the knowledge of physics", and in one way or another the APS has been at that task ever since. In the early years, virtually the sole activity of the AP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASME
The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, an advocacy organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global. ASME has over 85,000 members in more than 135 countries worldwide. ASME was founded in 1880 by Alexander Lyman Holley, Henry Rossiter Worthington, John Edison Sweet and Matthias N. Forney in response to numerous steam boiler pressure vessel failures. Kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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