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/sci/ - Science & Math

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2060103 No.2060103 [Reply] [Original]

I've heard a lot of thing about this magic-looking device, it's said to be "just" (yet mostly unexplained) powered by electrodynamics and ionizing flux....

So...things I don't really understand, thought I'm sure that's not anti-gravity.

Does anybody here know if those thing work in vacuum ? They are not supposed to, but because of all the conspiration/OVNI sites around, there people who claim they do.

>> No.2060117

They don't work in a vacuum. A current running through the wire generates oxygen ions that are subsequently attracted to the aluminum foil, creating downward flow of ions and resulting in lift of the object. No air, no lift.

>> No.2060132

Mythbusters did an episode on these lol.

>> No.2060184

Yep, it relies entirely on ion wind, so no (gaseous?) medium, no lift.

However, could it work in a liquid? I'm not sure about that...

>> No.2060202

>>2060184
I think the current wouldn't run through the wire.

>> No.2061704

>>2060202

herp derp all liquids are conductive

>> No.2061733

It requires a high voltage current, like something provided by neon sign transformers, in order to ionize the surrounding air and subsequentely attract it to the aluminum foil plate.
30,000 volts or more is needed to run it, so don't half-ass it and get a good power supply.

>>2060184
No, won't work in liquids. Water doesn't ionize and instead shorts out the current. You need something that has a really high resistance like air.

>> No.2063697
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2063697

I have some guy (a teacher mind you) who continue to say that this systems can work in vacuum.

Do anybody have a link about serious experiences made by real scientific ?

The experience is so popular that google only give me "amateur" video, and nothing inside a vaccum chamber

Anyway, have some ionic thruster isn't if it's not really related.

>> No.2063717

>>2063697
An ion thruster works like a jet engine. It expels ions to produce thrust in the way a chemical rocket expels gas to produce thrust. It will work in a vacuum, and is very different from the ionic wind used by OP's device.

>> No.2063741

>>2063697
If my memory serves me right, mythbusters tried it in vacuum. Didn't work.

>> No.2064143

>>2063717

theres no ions in a fucking vacuum.

>> No.2064148

>>2064143
There's no rocket exhaust in a fucking vacuum either.
Learn how jet propulsion works.

>> No.2064934

>>2063741
I doubt Mythbuster can be trusted as a reliable source.

If that phenomenon is that mysterious some scientific must have tested it under controlled condition.

How hard could it be to test in a vaccum ?

>> No.2065018

>>2064934
Mythbusters is hardly reliable or scientific. But they did build one, and it did work in air, but not in a vacuum chamber. Also, there is nothing mysterious about this device. It is based on a well-known principle. Ionic air filters use the exact same design. The ionic air flow moves from the wire to the plate, and causes charged dust particles to collect on the plate.

>> No.2065030

Is there any other material that can attract air to it?
Or even jut something that attracts nitrogen works, since out atmosphere is like 68% nitrogen.

>> No.2065184

>>2065030
You can ionize literally any gas, at which point you can attract them to an opposite electrode.