Light energy motion produced

We are now in a position to reconsider the vibrational frequencies in light of the imposition of a small homogeneous strain. Recall that our strategy was to use the quadratic potential energy to produce equations of motion. Inspection of the potential energy developed above makes it clear that the term that is quadratic in the displacements has acquired additional complexity. In particular, if we derive the equations of motion on the basis of both our earlier quadratic terms and those considered here, then we find that they may be written as... 

In addition to an oxidizer, pyrotechnic mixtures will also contain a good fuel - or electron donor - that reacts with the liberated oxygen to produce an oxidized product plus heat. This heat will enable the high-energy chemist to produce any of a variety of possible effects - color, motion, light, smoke, or noise. 

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