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star-treks-james-doohan-has-an-honorary-phd
Star Trek’s James Doohan has an honorary PhD from the Milwaukee School of Engineering. Best known for his portrayal of the original USS Enterprise’s chief engineer, ‘Scotty’, Doohan was awarded the honor after half the school’s students credited his character as their inspiration for choosing a career in engineering.
you-cant-see-all-the-dots-in-this-illusion-at
You can’t see all the dots in this illusion at once. It’s hard for human eyes to process peripheral information, so the brain guesses to fill in the gaps. In this case, it settles on intersecting gray lines instead of 12 black dots.