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.
dumb bomb - a bomb that falls because of gravity and is not guided to a target. gravity bomb. bomb - an explosive device fused to explode under specific conditions. smart bomb - a bomb that can be guided (by a laser beam or radio) to its target; smart bombs have revolutionized aerial bombardment.