› added 5 years ago

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TIL Ann Druyan, a member of the team that assembled the Golden Record for the Voyager, recorded her brainwaves to put on it. A few days before, she and Carl Sagan professed their love to each other. So somewhere in space is a golden disc with the recorded brainwaves of someone madly in love.

Read more science.nasa.gov

via reddit.com

JmRQ TIL of a material so black the human eye can’t decipher what it’s seeing.
9wWOr TIL that Pilot FriXion ink is thermo-sensitive, and leave a notebook or homework near heaters or in a car on a hot day can make the ink invisible. To make the text reappear, you can simply put it in a freezer for a short period of time, the ink should reappear at around -10C/14F
QJdv9 TIL about the Moghol people - descendants of the Mongol Empire's armies still living in modern-day Afghanistan
GYDQG TIL the wax in paper cups is actually a plastic called Polyethylene or PE, the most commonly used plastic in the world and is practically non-recyclable.
p8dMG TIL that Cherophobia is fear of being happy. It is the belief that when one becomes happy,something bad will happen.