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Originally Posted by calvin-c
Irrelevant. The link is satire & has no relationship to reality.
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I'm sorry-- I was unaware that your absence of a sense of humor matched your absence of scientific knowledge.
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So once it passes thru the interference pattern we're no longer talking about a beam. And you're correct that current technology requires bulky equipment-that's one of the reasons why it's still in the labs.
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Holograms are not "still in the lab." You have holograms on your credit cards. You can make holograms at home. You used could buy kits on making holograms at home, including the lasers, mirrors, and holographic film, but I believe a few years ago "they" stopped making the film. Just like all real holograms are-- a static image permanently stored on a holographic film or a solid substrate.
Not projected into the air. What the CNN article was about is that someone has developed a medium for storing holograms that can be erased and rewritten. But no matter if they did get the erase time and the rewrite time so fast that it can produce full-motion video, it will still be just an image embedded in the surface of the material like that little bird on your credit card. It will not float above a surface like Princess Leia. That is
fantasy, not reality.
http://science.howstuffworks.com/hologram1.htm
I see that kits are still available, and cheaper than when I first looked at them maybe 10 years ago:
http://www.google.com/#hl=en&source=...c9ea851cee2c5b