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Little Boy (other)
Little Boy was a type of atomic bomb created by the United States as part of 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, which was abandoned in 1944 after technical difficulties were discovered. Little Boy used a charge of n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Boy Bomb
Little is a synonym for small size and may refer to: Arts and entertainment *Little (album), ''Little'' (album), 1990 debut album of Vic Chesnutt *Little (film), ''Little'' (film), 2019 American comedy film *The Littles, a series of children's novels by American author John Peterson **The Littles (TV series), ''The Littles'' (TV series), an American animated series based on the novels Places *Little, Kentucky, United States *Little, West Virginia, United States Other uses *Clan Little, a Scottish clan *Little (surname), an English surname *Little (automobile), an American automobile manufactured from 1912 to 1915 *Little, Brown and Company, an American publishing company *USS Little, USS ''Little'', multiple United States Navy ships See also * * *Little Mountain (other) *Little River (other) *Little Island (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Alamos Laboratory
The Los Alamos Laboratory, also known as Project Y, was a secret laboratory established by the Manhattan Project and operated by the University of California during World War II. Its mission was to design and build the first atomic bombs. Robert Oppenheimer was its first director, serving from 1943 to December 1945, when he was succeeded by Norris Bradbury. In order to enable scientists to freely discuss their work while preserving security, the laboratory was located in a remote part of New Mexico. The wartime laboratory occupied buildings that had once been part of the Los Alamos Ranch School. The development effort initially concentrated on a gun-type fission weapon using plutonium called Thin Man. In April 1944, the Los Alamos Laboratory determined that the rate of spontaneous fission in plutonium bred in a nuclear reactor was too great due to the presence of plutonium-240 and would cause a predetonation, a nuclear chain reaction before the core was fully assembled. Opp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Maltese Falcon (novel)
''The Maltese Falcon'' is a 1930 detective novel by American writer Dashiell Hammett, originally serialized in the magazine '' Black Mask'' beginning with the September 1929 issue. The story is told entirely in external third-person narrative; there is no description whatsoever of any character's thoughts or feelings, only what they say and do, and how they look. The novel has been adapted several times for the cinema. The main character, Sam Spade (who also appeared later in some lesser-known short stories), was a departure from Hammett's nameless detective, The Continental Op. Spade combined several features of previous detectives, notably his cold detachment, keen eye for detail, unflinching and sometimes ruthless determination to achieve his own form of justice, and a complete lack of sentimentality. In 1990 the novel ranked 10th in Top 100 Crime Novels of All Time list by the Crime Writers' Association. Five years later, in a similar list by Mystery Writers of America, ... [...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 former 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 his divorce. Two days later, Nick sees a newspaper report of the shooting of Wynan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Thin Man (film)
''The Thin Man'' is a 1934 American pre-Code comedy-mystery directed by W. S. Van Dyke and based on the 1934 novel of the same name 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 wire-haired fox terrier Asta was played by canine actor 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 titular "Thin Man" is not Nick Charles, but the man Charles is initially hired to find – Clyde Wynant (part way through the film, Charles describes Wynant as ... [...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 enduring 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 now widely regarded as one of the finest mystery writers of all time". 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, four out of five of his novels made ''The Top 100 Mystery Novels of A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Serber
Robert Serber (March 14, 1909 – June 1, 1997) was an American physicist who participated in the Manhattan Project. Serber's lectures explaining the basic principles and goals of the project were printed and supplied to all incoming scientific staff, and became known as ''The Los Alamos Primer''. The ''New York Times'' called him “the intellectual midwife at the birth of the atomic bomb.” Early life and education He was born in Philadelphia, the eldest son of Rose (Frankel) and David Serber. His family was Jewish. His mother died in 1922 and his father married her cousin Frances Leof in 1928. Robert Serber earned his BS in engineering physics from Lehigh University in 1930 and earned his PhD in physics from the University of Wisconsin–Madison with John Van Vleck in 1934. He married Charlotte Leof (26 Jul 1911 – 1967), the daughter of his stepmother's uncle, in 1933. Shortly before receiving his doctorate, Serber was selected for a National Research Council postdoctor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Alberta
Project Alberta, also known as Project A, was a section of the Manhattan Project which assisted in delivering the first nuclear weapons in the atomic bombing of Hiroshima and Nagasaki during World War II. Project Alberta was formed in March 1945, and consisted of 51 United States Army, Navy, and civilian personnel, including one British scientist. Its mission was three-fold. It first had to design a bomb shape for delivery by air, then procure and assemble it. It supported the ballistic testing work at Wendover Army Air Field, Utah, conducted by the 216th Army Air Forces Base Unit (Project W-47), and the modification of B-29s to carry the bombs (Project Silverplate). After completion of its development and training missions, Project Alberta was attached to the 509th Composite Group at North Field, Tinian, where it prepared facilities, assembled and loaded the weapons, and participated in their use. Origins The Manhattan Project began in October 1941, just before U.S. entry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagasaki
is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan. It became the sole port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hidden Christian Sites in the Nagasaki Region have been recognized and included in the UNESCO World Heritage List. Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War. Near the end of World War II, the American atomic bombings of Hiroshima and Nagasaki made Nagasaki the second and, to date, last city in the world to experience a nuclear attack (at 11:02 am, August 9, 1945 'Japan Standard Time (UTC+9)'). , the city has an estimated population of 407,624 and a population density of 1,004 people per km2. The total area is . History Nagasaki as a Jesuit port of call The first contact with Portuguese explorers occurred in 1543. An early visitor was Fernão Mendes Pinto, who came from Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fat Man
"Fat Man" (also known as Mark III) is the codename for the type of nuclear bomb the United States Atomic bombings of Hiroshima and Nagasaki#Bombing of Nagasaki, detonated over the Japanese city of Nagasaki on 9 August 1945. It was the second of the only two nuclear weapons ever used in warfare, the first being Little Boy, and its detonation marked the third nuclear explosion in history. It was built by scientists and engineers at Los Alamos Laboratory using plutonium from the Hanford Site, and it was dropped from the Boeing B-29 Superfortress ''Bockscar'' piloted by Major Charles Sweeney. The name Fat Man refers to the early design of the bomb because it had a wide, round shape. Fat Man was an implosion-type nuclear weapon with a solid plutonium core. The first of that type to be detonated was the Gadget in the Trinity (nuclear test), Trinity nuclear test less than a month earlier on 16 July at the Holloman Air Force Base, Alamogordo Bombing and Gunnery Range in New Mexico. Tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Weapon Design
Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate. There are three existing basic design types: * pure fission weapons, the simplest and least technically demanding, were the first nuclear weapons built and have so far been the only type ever used in warfare (by the United States on Japan during WWII). * boosted fission weapons increase yield beyond that of the implosion design by using small quantities of fusion fuel to enhance the fission chain reaction. Boosting can more than double the weapon's fission energy yield. * staged thermonuclear weapons are essentially arrangements of two or more "stages", most usually two. The first stage is normally a boosted fission weapon as above (except for the earliest thermonuclear weapons, which used a pure fission weapon instead). Its detonation causes it to shine intensely with x-radiation, which illuminates and implodes the second stage filled wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Fission
Nuclear fission is a nuclear reaction, reaction in which the atomic nucleus, nucleus of an atom splits into two or more smaller atomic nucleus, nuclei. The fission process often produces gamma ray, gamma photons, and releases a very large amount of energy even by the energetic standards of radioactive decay. Nuclear fission of heavy elements was discovered on Monday 19 December 1938, by German chemist Otto Hahn and his assistant Fritz Strassmann in cooperation with Austrian-Swedish physicist Lise Meitner. Hahn understood that a "burst" of the atomic nuclei had occurred. Meitner explained it theoretically in January 1939 along with her nephew Otto Robert Frisch. Frisch named the process by analogy with fission (biology), biological fission of living cells. For heavy nuclides, it is an exothermic reaction which can release large amounts of energy both as electromagnetic radiation and as kinetic energy of the fragments (heating the bulk material where fission takes place). Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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