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Build Your Own UFO
Are Belong To Us dept. writes "Guess where the billions of dollars in the super-secret
Air Force program are going? Build your own for $10 in parts. They're popularly called "Lifters" and they're flying (one
of many videos) without engines and can hover in
place. Admit it, it would have been cool to see a
UFO. Never mind if you didn't, because now you can
build your own (another, step-by-step
instruction, here), like lots
of people around the globe already have, for $10 in
parts. A number of patents surround the technology, some by
NASA. The best introduction
site to all of this is Jean-Louis Naudin's site. There goes your sleep - this is fascinating stuff. ;-)" Any website that uses the phrase "a simple 30KV power supply" is okay in my book.
I skimmed through the the NASA patent in question.
... not my crappy dead 14" CTX.
It's not a reactionless drive. The propellant photons. The patent proposal seems to be a variant of an end-fire phased array antenna. (Or a less sophisticated version of laser propulsion system.)
However, if you have a background in propulsion, you are probably aware that photons are terrible for thrusters. It you want to spit off directed momentum, photons give you the _least_ bang for your buck. Photons are classically massless and only give you h_bar omega / c momentum. Only if your are talking about hard gamma do photons even start to compete with propellants of current rockets.
As far as the lifter page is concerned:
What is the damn frequency of the power supply? Heck, I have all the equipment (even a dead 14" monitor for salvage). I would build it for fun.
Monitors use both a high DC voltage for acceleration of electron beams and an two sawtooth-ish AC components for sweeping the beam (vertical at 70Hz and horizontal at 100KHz). Is this a purely DC phenomena or should I tap the sweep signals?
All in all, he didn't give sufficient details to replicate his work so it sets my BS detector humming. Or more likely, if I replicate it and it doesn't work, I'll probably be told that only magical NEC monitors from the mysterious Hokkaido forest manufacturing plant work
Kevin