You guys must've all come in at the end of that episode of Mythbusters...
Supersonic rounds disintegrated within a foot or two of the surface. Subsonic rounds, as I recall, made it 5 or 10 feet.
If you've got a centrifuge at home, sure - you could separate it from light water that way...
Boil it and use gaseous diffusion - that would work, too...
Hrm. I'm not sure how to answer that. :)
Seriously - there's a safety requirement that says any power supply with a rail that can source >240W has to be in an unopenable cage with warning stickers and stuff. And since the power supply cable comes out of its box, the "unopenable cage" would...
None of the above, and it's very very doubtful you'll ever find a power supply that sources over 20A on any 12V rail.
There's a UL requirement that any power supply which can source more than 240W (for DC; I think the requirement's really 240VA, but for DC supplies, same thing) has to be in...
okay, that makes sense. I hadn't considered that 120VDC would be sufficient, but I should have - that saves me the trouble of doing the 555 timer, but I'd still have to do one hell of a charge pump.
As for actually building the thing, no problem - I do know how to do that sorta stuff. :)
3A...
I've got the opposite problem of the guy with the homework problem to take 120VAC and get 6VDC.
I've got a lovely Christmas wreath with some lights. It's got a power cord, which implies it wants 120VAC.
I wish to hang it on my front door, where there's no convenient outlet, so I'd really...
A bunch of AAs in parallel would kinda work; only concern is if they don't have exactly the same voltage - you'd want small resistors in series with each. With a 9V, you'd want to do some sort of a high-efficiency stepdown voltage regulator to get it to 1.2V (or whatever your target is)...
Be careful doing it this way... what everyone's describing here is a linear regulator from 12V to 1.5V, and you're gonna be burning 7 watts as heat in your pass element (the resistor or LM317, depending on what ya pick) for every watt you deliver to your device.
I realize that's probably the...
There's another way to do it; if you're willing to share bandwidth, you could use a PCI-E fanout switch (analogous to a PCI-to-PCI bridge) to hook multiple x16 devices to a single x16 interface...
Something screams "perpetual motion machine" here, it seems. The alternator's rectified output creates the electric field that the alternator needs to provide a rectified output??
Anyway, if I black-box that out of the way, the rest is how to step an unregulated high-voltage DC input down to...
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