› added 4 years ago

276

TIL there is no official difference between a hill and a mountain

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oBYOE TIL In WW2, the first operational jet fighter, the deadly German Me 262s, were too fast for the Allied fighters, so the allies would follow the jets back to their base, then attack them on their landing approach, when they were travelling slowly, and incapable of rapid acceleration.
XEEyD We could do it, but should we?
WbZY TIL that the US government gave VW $51 million in subsidies for “clean Diesels”.
Xx5j TIL: Ancient Romans would dye their hair black, because blonde hair was associated with prostitutes or French and German slaves. This trend began declining when Augustus Caesar, who was blonde, became Rome’s first emperor.
PYakn TIL that University of Washington engineers have designed the first battery-free cellphone that can send and receive calls using only a few microwatts of power.