I try and burn a Model rocket engine submerged in liquid nitrogen to see what's going to happen, also filming with a 4k high speed ( slow motion ) camera it should yield some interesting results, Model rockets are cool and in this case very cool, -320 °F cool, How does this work ?, lets find out. I build a couple different rigs to see if I can get a clear view of the engine for our high speed camera and see what the high speed footage reveals.