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TIL that the death rate of climbing mount K2, the second highest mountain in the world, is 29%.

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GX67 TIL that the human eye is sensitive enough that -assuming a flat Earth and complete darkness- you could spot a candle flame flickering up to 30miles (48 km) away.
ADKZd TIL Sylvester Stallone signed onto the film Stop! Or My Mom Will Shoot based on rumors that Arnold Schwarzenegger was interested in the lead. Schwarzenegger confirmed a rumor that, knowing the script was "really bad", he had publicly faked interest in starring for producers to lure Stallone.
PYgyg TIL 20% of teens in the UK think Winston Churchill is a fictional character
PYxRO TIL That Intel created a working version of the "Pipe Dream" Machine from Animusic
deQ TIL there was a phantom island off the coast of Ireland called Hy-Brasil, which was not discounted till 1865, seven years before its last sighting.