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Bomb threats were used to incite fear and violence during the American Civil Rights Movement, during which leader of the movement Martin Luther King Jr. received multiple bomb threats during public addresses, [3] [4] [5] and schools forced to integrate faced strong opposition, resulting in 43 bomb threats against Central High School in Arkansas being broadcast on TV and the radio.
A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale. In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.
Bomb damage assessment has a number of objectives. The assessment will attempt to determine if the munition functioned properly and according to its design. An estimate will be made of the extent of physical damage (through munitions blast, fragmentation , and/or fire damage effects) to the target.
The GBU-57A/B Massive Ordnance Penetrator (MOP) is a precision-guided, 30,000-pound (14,000 kg) "bunker buster" bomb used by the United States Air Force. [2] The GBU-57 (Guided Bomb Unit-57) is substantially larger than the deepest-penetrating bunker busters previously available, the 5,000-pound (2,300 kg) GBU-28 and GBU-37.
Copy of Survival Under Atomic Attack issued by the Cleveland office of Civil Defense.. Survival Under Atomic Attack was the title of an official United States government booklet released in 1951 by the Executive Office of the President, the National Security Resources Board (document 130), and the Civil Defense Office.
There are also events of no safety relevance, characterized as "out of scale". [37] Examples: 5 March 1999: San Onofre, United States: Discovery of suspicious item, originally thought to be a bomb, in nuclear power plant. [38] 29 September 1999: H.B. Robinson, United States: A tornado sighting within the protected area of the nuclear power plant.
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
Blue Danube was not engineered as a weapon equipped to withstand the rigours of service life; it was a scientific experiment on a gigantic scale, which needed to be re-engineered to meet service requirements, resulting in Red Beard. The same could be said of the first U.S. atomic bomb, Fat Man, which was quickly re-engineered after World War II.