› added 6 years ago

312

TIL that the yellow Planet Aid collection bins are a funding stream for a European cult.

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XEvW8 TIL That when flying in formation flight, induced drag is significantly reduces by 81% with up to 25 wings in a V-shaped formation. This is often seen in migratory birds which help them fly longer by saving energy.
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780KL TIL that all numbers are either odious or evil: in mathematics, if a number contains an even number of 1s when written in binary, it's called an "evil number", otherwise it's called an "odious number".
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