› added 6 years ago

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TIL Cyrano de Bergerac, Badass in the 1600s, wrote about using rocket power to get to the Moon and talking earrings (headphones) used to educate children.

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E16jP TIL that the human body, if eaten, would be 81,500 calories. Based on the recommend daily intake of 2,500 calories, one average human body would feed one person for about one month.
m1jWM TIL that performance artist Marina Abramović created a piece called "The Artist Is Present" in 2010 at the Museum of Modern Art in New York, where she sat silently at a table for a total of 736 hours over 3 months inviting museum visitors to sit across from her and make eye contact without speaking.
BrA4e TIL that Japanese beer company Asahi gave away a R2D2 shaped beer robot to customers who collected a certain amount of seals that were hidden in beer cans.
Zp0v4 TIL of Steganography, a field similar to cryptography, but that involves concealing a message rather than encoding it. For example, hiding an image in audio, or even hiding one image in the data of another. A famous example, a POW in Vietnam blinked TORTURE in morse code during a newscast.
oB5bE TIL Continuous ingestion of Colloidal Silver [an alternative medicine] can cause skin to turn an irreversible blue/grey color - a condition called Argyria