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Cosmic Queries – The Science of Invisibility with Greg Gbur
StarTalk Radio
How to Make an Invisibility Cloak
Making, making like the cloaks as people are trying to do them is actually very difficult. People have made some simplified cloaking devices. The biggest one I've seen was big enough to hide a cat which may be very happy. But it was also an imperfect cloak. One thing that he has done is you can do a very nice light guiding trick using prisms. So all of the light is perfectly reflected inside. It's not really an invisibility cloak the way that we would like to imagine. And it's a fun optical trick. Yeah.
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