What I see here.<p>Crookes radiometer don't work in really high vacuum, which is not cheap, if do all things with boring rules.<p><a href="https://en.wikipedia.org/wiki/Crookes_radiometer" rel="nofollow">https://en.wikipedia.org/wiki/Crookes_radiometer</a><p>Without rules, high vacuum is achievable on just ~150km, with amateur rocket, I hear in US somewhere about thousand dollars for sub-orbital launch (smallest orbital rocket cost about million).<p>For example in electronic microscope also used high vacuum, and such microscope usually cost about million dollars and as I remember, it need about tens hours to achieve such high vacuum, so could easy calculate, about thousand experiments in 3-4 years (accounting amortization period for high cost equipment), and also each experiment will cost about thousand dollars without interest rate.<p>I think, he is typical NASA scientist, bored at his work and have spare money to play game with fake patent.<p>As NASA worker, he really have possibility to place his experiments in high vacuum chamber, and I'm sure he have experience and seen nothing.<p>And I'm sure, he understand well, mentioned in patent configuration is very hard to research, and very easy to accidentally achieve some extraordinary results.<p>But you, humble reader, don't have such opportunities, but you could donate to him for his crazy experiments.