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TIL: Ostriches are the only birds that have bladders

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pYYEN TIL that any object moving through water, no matter the speed or shape, creates a "Kelvin Wake" that is angled at precisely 19.47 degrees with respect to the direction of motion.
xVR7B TIL that daily or weekly streak doesn’t motivate people to continue doing something once it’s discontinued. Rather, it’s better to show the total number of days that you did something since the number will never be decreased and never demotivate users.
pRN8 TIL If you die in Amsterdam with no next of kin and no-one to attend your funeral, a poet will write a poem for you and recite it at your funeral.
XEJEj TIL Keanu Reeves has had stalkers break into his house multiple times. On one occasion he awoke and found one in his library. He calmly spoke to her as he called the police for a psychiatric evaluation.
X0v9j TIL “swallowing the tongue during a seizure” is actually a myth. The muscle underneath the tongue (lingual frenulum) prevents this from happening