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completing the circuit and setting off the explosive(s).



Detonating Head
---------------

The detonating head (or heads, depending on whether a Uranium or
Plutonium bomb is being used as a model) that is seated in the conventional
explosive charge(s) is similar to the standard-issue blasting cap. It merely
serves as a catalyst to bring about a greater explosion. Calibration of this
device is essential. Too small of a detonating head will only cause a
colossal dud that will be doubly dangerous since someone's got to disarm and
re-fit the bomb with another detonating head. (an added measure of discomfort
comes from the knowledge that the conventional explosive may have detonated
with insufficient force to weld the radioactive metals. This will cause a
supercritical mass that could go off at any time.) The detonating head will
receive an electric charge from the either the air pressure detonator or the
radar altimeter's coordinating detonator, depending on what type of system is
used. The Du Pont company makes rather excellent blasting caps that can be
easily modified to suit the required specifications.



Conventional Explosive Charge(s)
--------------------------------

This explosive is used to introduce (and weld) the lesser amount of
Uranium to the greater amount within the bomb's housing. [The amount of
pressure needed to bring this about is unknown and possibly classified by the
United States Government for reasons of National Security]

Plastic explosives work best in this situation since they can be
manipulated to enable both a Uranium bomb and a Plutonium bomb to detonate.
One very good explosive is Urea Nitrate. The directions on how to make Urea
Nitrate are as follows:

- Ingredients -
---------------
[1] 1 cup concentrated solution of uric acid (C5 H4 N4 O3)
[2] 1/3 cup of nitric acid
[3] 4 heat-resistant glass containers
[4] 4 filters (coffee filters will do)


Filter the concentrated solution of uric acid through a filter to remove
impurities. Slowly add 1/3 cup of nitric acid to the solution and let the
mixture stand for 1 hour. Filter again as before. This time the Urea Nitrate
crystals will collect on the filter. Wash the crystals by pouring water over
them while they are in the filter. Remove the crystals from the filter and