Nature Provides Half of Photon-DSP. The Other Half (snippets) Comes from Pure Whimsy (how many snippets, where are they, how wide or narrow are they).
https://read.amazon.com/?asin=B00KTTY4A4&ref_=kwl_kr_iv_rec_5
Even a Microscopic Piece of 95% U-235 can produce Big Heat if it is Detonated by a Burst of Neutrons. Such a Burst Can Be Arranged By Polonium and Beryllium Metals Being Forced Together Hard and Fast.
Inventions by Robert Fenton Gary 