› added 12 years ago

179

TIL too much exposure to Silver (Ag) will turn your skin permanently blue

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d8laE TIL that after a heart transplant you'll have a resting pulse of around 90 bpm since the vagus nerve that usually regulates heart rate is cut during the transplant. The heart will still beat faster during exercise due to its internal regulatory mechanism, but the new "idle" will be around 90 bpm.
b6X89 TIL That the reason for women's buttons being on the left and men's on the right is because women would have servants dress them while men's buttons follow military uniform practice
6XJm TIL the tomb of China’s first emperor has never been opened due to a river of poisonous mercury that flows inside it.
Qo7M TIL that the last words of Peter Kürten, a serial killer executed by guillotine, said “Tell me—after my head is chopped off, will I still be able to hear, at least for a moment, the sound of my own blood gushing from the stump of my neck? That would be the pleasure to end all pleasures.”
WX1A TIL people who constantly bite the skin around their fingernails or on the inside of their cheeks suffer from dermatophagia, an impulse control disorder linked to anxiety and obsession