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TIL Einstein’s theory of special relativity explains why a star can burn for billions of years without running out of fuel. If you can measure potential energy by multiplying mass by the speed of light squared, that means an average adult stores 30 large hydrogen bomb explosions worth of energy.

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gMEwA TIL The younger generations in Norway have coined the term “fredagstaco” to describe the cultural phenomenon of starting the weekend off with a serving—or two—of tacos. The taco is by far the most popular dinner on Friday in Norway—even surpassing the infamous frozen Grandiosa pizza.
69Wo8 TIL about a new type of chocolate 🍫 😋
4XAab TIL The heart shaped seeds of the Silphium plant is why we associate hearts with romance. Besides being used in food and medicine, Silphium was one of the first genuinely effective birth control. It's believed the Romans drove it to extinction.
ADk5o TIL composer Earle Brown wrote a piece called “Twenty-Five Pages”, which consists of 25 un-numbered pages that can be played in any order, either side up, and each line read as treble or bass clef. It can be played by any number of pianos up to 25.
1BNO TIL a male tiger almost always win in a fight against a male lion because it is bigger, has longer fangs, better muscle density, more agile, more powerful bite force and can stand on its powerful hindlegs allowing for both-paws swipe while the lion cannot.