7 Holes in the Space Station

Destin from Smarter Every Day looks into the engineering of one of the most important features of the space station…with help from the actual astronauts!

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How Laser Tattoo Removal Works

A little while back, Destin at Smarter Every Day posted a video about the science of tattooing and how it works. He’s now followed it up with a video on tattoo removal. As someone who’s considered getting at tattoo for a few years now, I found this pretty interesting. Check it out.

Tattooing Close Up (In Slow Motion)

Anyone squeamish or afraid of needles need not apply. For everyone else, take a look at what Destin at SmarterEveryDay found out. Tattooing is more scientific than you might think!