Tying Light in Knots

Physicists have all the fun. They’ve managed to twist beams of laser light into knots! Researchers used polarization and holograms, to manipulate the vibrating particles of light. They tied many complex knots in order to study the spaces in between, which are known as Seifert surfaces. I wonder if they can tie laser shoelaces?

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Fly Causes Chain Reaction

A German group was attempting a new world record involving 596,229 mini dominoes. 22 people had already spent 2 weeks, setting them up with tweezers; but before they could finish, a fly landed on a tile and triggered them to fall prematurely! There was no time to set it up again. That must have really bugged them!

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