Now You See It, Now You Don't: Time Cloak Created

Time Cloak

WASHINGTON (AP) -- It's one thing to make an object invisible, like Harry Potter's mythical cloak. But scientists have made an entire event impossible to see. They have invented a time masker....

Senh: This is an interesting approach. Slowing down light, so something can happen before it reaches our eyes. This seems like the most elegant solution, but it's probably way too difficult to do practically.

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