Holographic Plasma

Started by Tìtstewan, July 02, 2015, 03:57:23 PM

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Tìtstewan

Yeah, tangible holograms are not stuff from the far future:

Fairy Lights in Femtoseconds: Tangible Holographic Plasma (SIGGRAPH)
:D
stuff like this console would be possible:

Holodecks like in Star Trek or those holograms used in Star Wars could be possible too.

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Toliman

Wow! It looks as amazing. It's very interesting.  :)

BlueHusky2154

But using plasma, which by definition is superheated ionized gas, wouldn't sticking your hand in it incinerate your hand instantly? Plasma is usually created by electricity arcing through a gas, like lightning, arc welding, and neon signs. Makes no sense to me.  ??? :-\
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Tìtstewan

Plasma have not to be superheated, plasma is just ionized gas.

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BlueHusky2154

Wouldn't it still hurt? It's still electrically charged with thousands ov volts?
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Tìtstewan

According the video, that guy who touched the hologram is still ok. I think, the voltage of that plasma isn't high enough to hurt. Also, if I understood it correctly, the laser ionise the gas but not completely so that the electrons fall back to their atoms and by this the gas is emitting light.

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BlueHusky2154

If the voltage is high, and the frequency is high, and the current is low, then he would be ok electrical wise, like a flyback transformer. But, if he was grounded, the power will jump to him, and the arc would generate heat, burning him.
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