TheFaithfulStone
Your question of "where do those extra photons go?" is a tough one to answer. It hits at the very heart of the wave/particle duality of quantum theory. I did not touch on this in my post, but even if it does not make a good engine, it may make a good research tool.
If photons are purely particles, you must account for where they went, if purely waves then you don't. Quantum theory says they are both, so what is going on? This device may help us resolve this issue. I am trying to think of some experiments that could be devised along this lines. There are many theories out there, and answers in this field could eliminate many of them.
In my paper on this site
http://hypography.com/forums/science...-expanded.html I made a model of the atom that is both wave and particle based. If you read it, let me know what you think of it, it's a work in progress. This device good be used to check that model and others.
Now how do I get my hands on one of these for testing?