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Thin Man (nuclear Bomb)
"Thin Man" was the code name for a proposed plutonium-fueled gun-type nuclear bomb that the United States was developing during the Manhattan Project. Its development was abandoned in 1944 after it was discovered that the spontaneous fission rate of nuclear reactor-bred plutonium was too high for use in a gun-type design due to the high concentration of the isotope plutonium-240. Early decisions In 1942, prior to the United States Army taking over control of wartime atomic research in what became known as the Manhattan Project, Robert Oppenheimer held conferences in Chicago in June and Berkeley, California in July, at which physicists discussed nuclear bomb design issues. A gun-type design was chosen, in which two sub- critical masses of plutonium would be brought together by firing a "bullet" into a "target". The alternative idea of an implosion-type nuclear weapon was suggested by Richard Tolman, but it attracted scant consideration, being far more complex. Oppenheimer r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Weapon
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. Nuclear bombs have had yields between 10 tons (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). Yields in the low kilotons can devastate cities. A thermonuclear weapon weighing as little as can release energy equal to more than 1.2 megatons of TNT (5.0 PJ). Apart from the blast, effects of nuclear weapons include firestorms, extreme heat and ionizing radiation, radioactive nuclear fallout, an electromagnetic pulse, and a radar blackout. The first nuclear weapons were developed by the Allied Manhattan Project during World War II. Their production continues to require a large scientific and industrial complex, pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seth Neddermeyer
Seth Henry Neddermeyer (September 16, 1907 – January 29, 1988) was an American physicist who co-discovered the muon, and later championed the implosion-type nuclear weapon while working on the Manhattan Project at the Los Alamos Laboratory during World War II. Early life Seth Henry Neddermeyer was born in Richmond, Michigan, on September 16, 1907. He attended Olivet College, a small college that his mother, older sister, and uncle had also attended, for two years before his family moved to California. He transferred to Stanford University, from which received his Bachelor of Arts (AB) degree in 1929. His interest in physics was inspired by the work of Robert A. Millikan, and he enrolled in graduate school at California Institute of Technology (Caltech), where he wrote his 1935 PhD thesis on "The absorption of high energy electrons", under the supervision of Carl D. Anderson. He confirmed the theory espoused by Niels Bohr for this process. He also noted large radiative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franklin Roosevelt
Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served more than two terms. His first two terms were centered on combating the Great Depression, while his third and fourth saw him shift his focus to America's involvement in World War II. A member of the prominent Delano and Roosevelt families, Roosevelt was elected to the New York State Senate from 1911 to 1913 and was then the assistant Secretary of the Navy under President Woodrow Wilson during World War I. Roosevelt was James M. Cox's running mate on the Democratic Party's ticket in the 1920 U.S. presidential election, but Cox lost to Republican nominee Warren G. Harding. In 1921, Roosevelt contracted a paralytic illness that permanently paralyzed his legs. Partly through the encouragement of his wife, Eleanor Roosevelt, he ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pullman Car
Pullman is the term for railroad dining cars, lounge cars, and especially sleeping cars that were built and operated by the Pullman Company (founded by George Pullman) from 1867 to December 31, 1968. Railway dining cars in the U.S. and Europe were operated by the Pullman Company; lounge cars were operated by the Compagnie Internationale des Wagons-Lits in France, and the British Pullman Car Company in Great Britain. Other uses * The nickname ''Pullman coach'' was used in some European cities for the first long (four-axle) electric tramcars whose appearance resembled the Pullman railway cars and that were usually more comfortable than their predecessors. Such coaches () ran in Kyiv from 1907 and in Odessa from 1912. * In the 1920s, tramcars nicknamed ''Pullmanwagen'' in German ran in Leipzig, Cologne, Frankfurt and Zürich.Hans Bodmer. ''Das Tram in Zürich, 1928 bis 1962''. p. 11 (in German) * In some Western European countries in the 1930s, 1940s, and 1950s, some especial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silverplate
Silverplate was the code reference for the United States Army Air Forces' participation in the Manhattan Project during World War II. Originally the name for the aircraft modification project which enabled a B-29 Superfortress bomber to drop an atomic weapon, "Silverplate" eventually came to identify the training and operational aspects of the program as well. The original directive for the project had as its subject line "Silver Plated Project," but continued usage of the term shortened it to "Silverplate". Testing began with scale models at the Naval Surface Warfare Center Dahlgren Division, Naval Proving Ground in Dahlgren, Virginia, in August 1943. Modifications began on a prototype Silverplate B-29 known as the "Pullman" in November 1943, and it was used for bomb flight testing at Muroc Army Air Field in California commencing in March 1944. The testing resulted in further modifications to both the bombs and the aircraft. Seventeen production Silverplate aircraft were ord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Air Forces
The United States Army Air Forces (USAAF or AAF) was the major land-based aerial warfare service component of the United States Army and ''de facto'' aerial warfare service branch of the United States during and immediately after World War II (1941–1947). It was created on 20 June 1941 as successor to the previous United States Army Air Corps and is the direct predecessor of the United States Air Force, today one of the six United States Armed Forces, armed forces of the United States. The AAF was a component of the United States Army, which on 2 March 1942 was divided functionally by executive order into three autonomous forces: the Army Ground Forces, the United States Army Services of Supply (which in 1943 became the Army Service Forces), and the Army Air Forces. Each of these forces had a commanding general who reported directly to the Chief of Staff of the United States Army, Army Chief of Staff. The AAF administered all parts of military aviation formerly distributed am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Boy
Little Boy was a type of atomic bomb created by the Manhattan Project during World War II. The name is also often used to describe the specific bomb (L-11) used in the bombing of the Japanese city of Hiroshima by the Boeing B-29 Superfortress '' Enola Gay'' on 6 August 1945, making it the first nuclear weapon used in warfare, and the second nuclear explosion in history, after the Trinity nuclear test. It exploded with an energy of approximately and had an explosion radius of approximately which caused widespread death across the city. It was a gun-type fission weapon which used uranium that had been enriched in the isotope uranium-235 to power its explosive reaction. Little Boy was developed by Lieutenant Commander Francis Birch's group at the Los Alamos Laboratory. It was the successor to a plutonium-fueled gun-type fission design, Thin Man (nuclear bomb), Thin Man, which was abandoned in 1944 after technical difficulties were discovered. Little Boy used a charge of co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Maltese Falcon (1941 Film)
''The Maltese Falcon'' is a 1941 American film noir written and directed by John Huston in his directorial debut. Based on The Maltese Falcon (novel), the 1930 novel by Dashiell Hammett, it is a remake of The Maltese Falcon (1931 film), the 1931 film. Starring Humphrey Bogart as private investigator Sam Spade, Mary Astor as his ''femme fatale'' client, and Peter Lorre and Sydney Greenstreet as villains, the film follows a life-and-death quest for a jewel-encrusted falcon statuette in San Francisco. The film premiered in New York City on October 3, 1941, and was an immediate success, eventually becoming one of the first 25 films selected by the Library of Congress to be included in the National Film Registry as "culturally, historically, or aesthetically significant" in 1989. Plot In San Francisco, private investigators Sam Spade and Miles Archer meet prospective client Ruth Wonderly. She claims to be looking for her missing sister, who ran off from their home in New York an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Greenstreet
Sydney Hughes Greenstreet (December 27, 1879 – January 18, 1954) was a British and American actor. While he did not begin his career in films until the age of 61, he had a run of significant motion pictures in a Hollywood career lasting through the 1940s. He is best remembered for the three Warner Bros. films – ''The Maltese Falcon (1941 film), The Maltese Falcon'' (1941), ''Casablanca (film), Casablanca'' (1942), and ''Passage to Marseille'' (1944) – with both Humphrey Bogart (five films total with Greenstreet) and Peter Lorre (nine films with Greenstreet, three of which were also with Bogart). He portrayed Nero Wolfe on radio during 1950 and 1951. He became an American citizen in 1925. Early life Sydney Hughes Greenstreet was born on December 27, 1879, in Eastry, Kent, the son of Ann (née Baker) and John Jarvis Greenstreet, a Tanner (occupation), tanner. He had seven siblings. He left home at the age of 18 to make his fortune as a British Ceylon, Ceylon tea planter, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Thin Man (film)
''The Thin Man'' is a 1934 American Pre-Code Hollywood, pre-Code comedy-mystery film directed by W. S. Van Dyke and based on the The Thin Man, 1934 novel by Dashiell Hammett. The film stars William Powell and Myrna Loy as Nick and Nora Charles, a leisure-class couple who enjoy copious drinking and flirtatious banter. Nick is a retired private detective who left his very successful career when he married Nora, a wealthy heiress accustomed to high society. Their Fox Terrier (Wire), wire-haired fox terrier Asta was played by canine actor Skippy (dog), Skippy. In 1997, the film was added to the United States National Film Registry having been deemed "culturally, historically, or aesthetically significant". The film's screenplay was written by Albert Hackett and Frances Goodrich, a married couple. In 1934, the film was nominated for the Academy Award for Best Picture. The eponymous "Thin Man" is not Nick Charles, but the man Charles is initially hired to find – Clyde Wynant (part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Thin Man
''The Thin Man'' (1934) is a detective novel by Dashiell Hammett, originally published in a condensed version in the December 1933 issue of '' Redbook''. It appeared in book form the following month. A film series followed, featuring the main characters Nick and Nora Charles, and Hammett was hired to provide scripts for the first two. Plot The story is set in New York City during the Christmas season of 1932, in the last days of Prohibition in the United States. The main characters are Nick Charles, a former private detective, and Nora, his socialite wife. Nick, the son of a Greek immigrant, now spends most of his time in San Francisco managing his late father-in-law's businesses in between heavy drinking sessions. While in a New York speakeasy, Charles meets Dorothy, the now grown-up daughter of a former client, Clyde Wynant, who says she is trying to contact the father she has not seen since her parents' divorce. Two days later, Nick sees a newspaper report of the shooti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dashiell Hammett
Samuel Dashiell Hammett ( ; May 27, 1894 – January 10, 1961) was an American writer of hard-boiled detective novels and short stories. He was also a screenwriter and political activist. Among the characters he created are Sam Spade ('' The Maltese Falcon''), Nick and Nora Charles (''The Thin Man''), The Continental Op ('' Red Harvest'' and '' The Dain Curse'') and the comic strip character Secret Agent X-9. Hammett is regarded as one of the very best mystery writers. In his obituary in ''The New York Times'', he was described as "the dean of the... 'hard-boiled' school of detective fiction." ''Time'' included Hammett's 1929 novel '' Red Harvest'' on its list of the 100 best English-language novels published between 1923 and 2005. In 1990, the Crime Writers' Association picked three of his five novels for their list of '' The Top 100 Crime Novels of All Time''. Five years later, ''The Maltese Falcon'' placed second on '' The Top 100 Mystery Novels of All Time'' as selected by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
