Here's a gadget that I just know will make Gadget Daddy's Best Gadgets and Computer Items of 2020. Since I'm the one that makes that call, I'm certain of it. A few months ago, I saw an advertisement ...
Hold on to your wand, Harry Potter: Science has outdone even your best "Leviosa!" levitation spell. Researchers report that they have levitated objects with sound waves, and moved those objects around ...
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