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.
There are two ways to make nuclear weapons: fission weapons (also called atomic bombs or A-Bomb) and fusion weapons (also called hydrogen bombs, H-Bomb or thermonuclear weapons). The way they make energy for the nuclear explosion is different.Fusion weapons make bigger explosions. nuclear weapon is a weapon that suddenly releases the energy in the nucleus of certain types of atoms.