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1950 Rivière-du-Loup B-50 Nuclear Weapon Loss Incident
The 1950 Rivière-du-Loup B-50 nuclear weapon loss incident refers to loss of a nuclear weapon near Rivière-du-Loup, Quebec, Canada, during the fall of 1950. The bomb was released due to engine troubles, and then was destroyed in a non-nuclear detonation before it hit the ground. Background Returning one of several US Mark 4 nuclear bombs secretly deployed at CFB Goose Bay in Labrador, a USAF Boeing B-50 Superfortress had engine trouble and jettisoned the weapon at . The crew set the bomb to self-destruct at , and released it over the St. Lawrence River. The non-nuclear explosion shook area residents and scattered nearly of radioactive uranium ( U-238) used in the weapon's tamper. The plutonium core (" pit"), which is the key component for a nuclear reaction and detonation, was not installed in the bomb at the time. The absence of the core probably was because of its high cost and relative scarcity at the time. Standard US Air Force protocol prohibited any aircraft carrying a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivière-du-Loup
Rivière-du-Loup (; 2021 population 20,118) is a small city on the south shore of the Saint Lawrence River in Quebec. The city is the seat for the Rivière-du-Loup Regional County Municipality and the judicial district of Kamouraska. Its one of the largest cities in Bas-Saint-Laurent. History The city was named after the nearby river, whose name means ''Wolf's River'' in French. This name may have come from a native tribe known as "Les Loups" ("The Wolves") or from the many seals, known in French as ''loup-marin'' (sea wolves), once found at the river's mouth. Rivière-du-Loup was established in 1673 as the seigneurie of Sieur Charles-Aubert de la Chesnaye. The community was incorporated as the village of Fraserville, in honour of early Scottish settler Alexander Fraser, in 1850, and became a city in 1910. The city reverted to its original name, Rivière-du-Loup, in 1919. Between 1850 and 1919, the city saw large increases in its anglophone population. Most of them left the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit (nuclear Weapon)
The pit, named after the hard core found in fruits such as peaches and apricots, is the core of an implosion nuclear weapon – the fissile material and any neutron reflector or tamper bonded to it. Some weapons tested during the 1950s used pits made with U-235 alone, or in composite with plutonium, but all-plutonium pits are the smallest in diameter and have been the standard since the early 1960s. Pit designs Christy pits The pits of the first nuclear weapons were solid, with an ''urchin'' neutron initiator in their center. The Gadget and Fat Man used pits made of 6.2 kg of solid hot pressed plutonium-gallium alloy (at 400 °C and 200 MPa in steel dies – and ) half-spheres of diameter, with a internal cavity for the initiator. The Gadget's pit was electroplated with 0.13 mm of silver; the layer, however, developed blistering and the blisters had to be ground and plated with gold leaf before the test. The Fat Man pit, and those of subsequent models, were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950 In Quebec
Year 195 ( CXCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scrapula and Clemens (or, less frequently, year 948 ''Ab urbe condita''). The denomination 195 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus has the Roman Senate deify the previous emperor Commodus, in an attempt to gain favor with the family of Marcus Aurelius. * King Vologases V and other eastern princes support the claims of Pescennius Niger. The Roman province of Mesopotamia rises in revolt with Parthian support. Severus marches to Mesopotamia to battle the Parthians. * The Roman province of Syria is divided and the role of Antioch is diminished. The Romans annexed the Syrian cities of Edessa and Nisibis. Severus re-establish his head ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950 In The United States
Events from the year 1950 in the United States. Incumbents Federal government * President: Harry S. Truman ( D-Missouri) * Vice President: Alben W. Barkley ( D-Kentucky) * Chief Justice: Fred M. Vinson (Kentucky) * Speaker of the House of Representatives: Sam Rayburn ( D-Texas) * Senate Majority Leader: Scott W. Lucas ( D-Illinois) * Congress: 81st Events January–March * January 5 – U.S. Senator Estes Kefauver introduces a resolution calling for an investigation of organized crime in the U.S. * January 7 – A fire consumes Mercy Hospital in Davenport, Iowa, killing 41 patients. * January 12 – Cold War: U.S. Secretary of State Dean Acheson delivers his "Perimeter Speech", outlining the boundary of U.S. security guarantees. * January 17 – Great Brinks Robbery: 11 thieves steal more than $2,000,000 from an armored car in Boston, Massachusetts. * January 21 – Accused communist spy Alger Hiss is convicted of perjury. * January 24 – Cold War: Klaus F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950 In Canada
Events from the year 1950 in Canada. Incumbents Crown * Monarch – George VI Federal government * Governor General – the Viscount Alexander of Tunis * Prime Minister – Louis St. Laurent * Chief Justice – Thibaudeau Rinfret (Quebec) * Parliament – 21st Provincial governments Lieutenant governors *Lieutenant Governor of Alberta – John C. Bowen (until February 1) then John J. Bowlen *Lieutenant Governor of British Columbia – Charles Arthur Banks (until October 1) then Clarence Wallace * Lieutenant Governor of Manitoba – Roland Fairbairn McWilliams *Lieutenant Governor of New Brunswick – David Laurence MacLaren *Lieutenant Governor of Newfoundland – Leonard Outerbridge * Lieutenant Governor of Nova Scotia – John Alexander Douglas McCurdy *Lieutenant Governor of Ontario – Ray Lawson * Lieutenant Governor of Prince Edward Island – Joseph Alphonsus Bernard (until October 4) then Thomas William Lemuel Prowse * Lieutenant Governor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Accidents And Incidents In 1950
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Accidents And Incidents In Canada
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Accidents And Incidents Involving Nuclear Weapons
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accidents And Incidents Involving United States Air Force Aircraft
An accident is an unintended, normally unwanted event that was not directly caused by humans. The term ''accident'' implies that nobody should be blamed, but the event may have been caused by unrecognized or unaddressed risks. Most researchers who study unintentional injury avoid using the term ''accident'' and focus on factors that increase risk of severe injury and that reduce injury incidence and severity. For example, when a tree falls down during a wind storm, its fall may not have been caused by humans, but the tree's type, size, health, location, or improper maintenance may have contributed to the result. Most car wrecks are not true accidents; however English speakers started using that word in the mid-20th century as a result of media manipulation by the US automobile industry. Types Physical and non-physical Physical examples of accidents include unintended motor vehicle collisions, falls, being injured by touching something sharp or hot, or bumping into some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Military Nuclear Accidents
This article lists notable military accidents involving nuclear material. Civilian accidents are listed at List of civilian nuclear accidents. For a general discussion of both civilian and military accidents, see nuclear and radiation accidents. For other lists, see Lists of nuclear disasters and radioactive incidents. Scope of this article In listing military nuclear accidents, the following criteria have been adopted: # There must be well-attested and substantial health risks associated with nuclear materials. # To qualify as "military", the nuclear operation/material must be principally for military purposes. # To qualify as "accident", the damage should not be intentional, unlike in nuclear warfare. This list may be incomplete due to military secrecy. 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s See also *1983 Soviet nuclear false alarm incident *International Nuclear Event Scale *List of accidents and incidents involving military aircraft *List of civi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
