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TIL that the world’s smallest wasp is smaller than an amoeba. The wasp, Megaphragma mymaripenne - complete with eyes, brain, wings, muscles, guts and genitals is only about 200 micrometres long. Their average lifespan at adulthood is 5 days and they lay eggs in the eggs of thrips.

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vPNv8 TIL that many of the infamous "medieval" torture devices, like the Iron Maiden, were actually invented during the 18th and 19th centuries, not the Middle Ages.
JeK1 TIL People need to read at least 100 books on their e-readers to break even with printed books on environmental impact.
nenGd TIL that in 1993, lawyer Garry Hoy attempted to show that the windows in a building were nearly unbreakable by running into one at full speed. The window was knocked out of its frame and Hoy fell with it to his death. However, the window did not break.
lJLa TIL that the suicidal jumpers off the Golden Gate Bridge that survived the fall reported a complete change of heart while falling “I instantly realized that everything in my life that I’d thought was unfixable was totally fixable—except for having just jumped.“
ADGLd TIL Hindus believe in cycles of existence. According to the text dating 3rd to 10th century CE, it's currently 'Kali Yuga' - the Age of Discord. Attributes: widespread disease, degradation of environment, earthquakes; increased animosity and murder, mindless hedonism and the rich suppressing poor