Atomic Bomb

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cond subcritical mass.
When the fuse is triggered, a conventional explosion causes the second
subcritical mass to be propelled at a high velocity into the first
subcritical mass. The resulting combination causes the two
subcritical masses to become a supercritical mass. When this
supercritical mass is obtained, a rapid self-sustained chain reaction
is caused (World Book, 1990). This type of atomic bomb was used on
Hiroshima, and given the nickname “Little Boy” after Franklin D.
Roosevelt (Outlaw Labs).
The second type of atomic bomb is an implosion bomb. In this
type a subcritical mass, which is in the shape of a ball, is placed in
the center of the weapon. This subcritical mass is surrounded in a
spherical arrangement of conventional explosives. When the fuse is
triggered all of the conventional explosives explode at the same time.
This causes the subcritical mass to be compressed into a smaller
volume, thus creating a supercritical mass to be formed. After this
supercritical mass is obtained, a self-sustained chain reaction takes
place and causes the atomic explosion (World Book, 1990). This
type of stomic bomb was used on Nagasaki, and given the nickname “Fat
Man” after Winston Churchill (Outlaw Labs).
The blast from an atomic bomb’s explosion will last for only
one-half to one second, but in this amount of time a great deal of
damage is done (Physicians and Scientists on Nuclear War, 1981). A
fireball is created by the blast, which consists mainly of dust and
gasses. The dust produced in this fireball has no substantial effect
on humans or their environment. However, as the gasses expand a blast
wave is produced. As this blast wave moves, it creates static
overpressure. This static overpressure then in turn creates dynamic
pressure. The static overpressure has the power to crush buildings.
The dynamic pressure creates winds, which have th...