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Scientists build 3D floating 'e-ink' display

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kobolds

wow, this is what a hologram should be .

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Susanc241

Wow again! Way over my head re the technicalities but exciting stuff.

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Parsec

I wonder which are the side effects of being exposed for prolonged periods of time to high pitch, high frequency sound waves.

For sure you wouldn't be able to watch the tv with your dog anymore! 

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paperdyer
1 hour ago, Parsec said:

I wonder which are the side effects of being exposed for prolonged periods of time to high pitch, high frequency sound waves.

For sure you wouldn't be able to watch the tv with your dog anymore! 

Unless I missed it in the article, it didn't say how large or how far the field goes outside the equipment.  Maybe it will be OK   As the article said, this sin't ready for prime time yet.

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mesuma

SWAMP!!! GAS!!!

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Parsec
2 hours ago, paperdyer said:

Unless I missed it in the article, it didn't say how large or how far the field goes outside the equipment.  Maybe it will be OK   As the article said, this sin't ready for prime time yet.

I missed it too,  that's why I was wondering. 

If I got it right, you should be able to interact with the hologram, so theoretically it should be "open" let's say, and thus my concerns about exposure. 

 

If you think about it,  we have high frequency devices to keep mosquitoes away,  so possibly it's harmless. 

 

I guess it depends on how powerful the sound waves are, but as you wrote, it's still in its infancy, so time will tell. 

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S I N

Step one of the Holodeck :)

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Calibeliever

How fun is that!? :)

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Krater

This is very old news. This tech has been around for decades. It uses a standing wave to suspend styrofoam beads and is not practical for much of anything. All these guys did was make an array. You'd need tens of thousands of them working together to create any decent resolution and a slight breeze will disrupt the whole thing. There are many other more practical hologram technologies already in existence or in the works. It's neat, but will never be more than a novelty.

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