› added 9 years ago

72

TIL that the windshield of the SR-71 Blackbird can reach a temperature of over 600°F during flights at mach 3. It had to be made of quartz and was ultrasonically fused to the titanium hull in order to handle the stress.

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loA4G TIL that according to one jewish legend,shedims(Jewish demons,not necessarily evil) were born because god originally wanted to make some humans but the sabbath came and he could not do any more work and just treated the project as complete.
kOBJ4 TIL that 4 divers literally exploded when a member of the boat crew accidentally opened the outer hatch of their decompression chamber. The men went from 305ft. down to sea level instantaneously.
VMJrm TIL That women are better at discerning shades of colours, while men are better at tracking fast-moving objects and discerning detail from a distance. These are evolutionary details linked to a hunter-gatherer past.
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