Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61centimeters) vertically from the other surfaces. 1926.451(e)(8) The standard prohibits the use of crossbraces as a means of access.
H Bomb. Abbreviation for Hydrogen Bomb. The hydrogen bomb is the big brother of the first nuclear bombs, Fat Man and Little Boy, which were dropped on Nagasaki and Heroshima in 1945. The hydrogen bomb uses a hydrogen neutron, fired at high speed, into an atom of some unstable element, usually uranium.
The Hydrogen Bomb. After the Soviet atomic bomb success, the idea of building a hydrogen bomb received new impetus in the United States.In this type of bomb, deuterium and tritium (hydrogen isotopes) are fused into helium, thereby releasing energy. There is no limit on the yield of this weapon.he scientific community split over the issue of building a hydrogen bomb. Edward Teller, who had explored the idea of a 'super' during the Manhattan Project, supported its development.