Verbal agreements are only as good as the paper they are written on. If your friend hasn't paid you for almost a year I wouldn't hold my breath waiting. Just be glad it only cost yo $500 to find out how good a friend they were. It could have cost you thousands of dollars.
Nuclear Materials. Nuclear materials are the key ingredients in nuclear weapons. They include fissile, fussionable and source materials. Fissile materials are those which are composed of atoms that can be split by neutrons in a self-sustaining chain-reaction to release energy, and include plutonium-239 and uranium-235.
It canbe released from atoms in two ways: nuclear fusion and nuclear fission.In nuclear fusion, energy is released when atoms are combined or fused together to forma larger atom. This is how the sun produces energy.In nuclear fission, atoms are split apart to form smaller atoms, releasing energy.Nuclearpower plants use nuclear fission to produce electricity. NUCLEAR FUEL-URANIUM The fuel most widely used by nuclear plants for nuclear fission is uranium.nstead,nuclear plants use the heat given off during fission as fuel. Fission takes place inside thereactor of a nuclear power plant. At the center of the reactor is the core, which contains theuranium fuel.The uranium fuel is formed into ceramic pellets.