I think you need elements of light interference and diffraction for something to... | Hacker News

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malandrew on March 7, 2013 | parent | context | favorite | on: An Iron Man Like 3D Hologram Controlled by Leap Mo...

I think you need elements of light interference and diffraction for something to be a hologram.

It's essentially a way to "record" light the same way you can record sound in grooves or magnetic tape.

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