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TIL that gagging when we see someone else vomiting is actually an evolved trait among primates. Humans would forage for food in groups. If any member of the group had an adverse reaction due to toxins in the food, it would be advantageous for the other members to take it out of their system too.

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OYNg TIL The shortest regularly scheduled flight in the world is 1.7 miles and takes less than two minutes from takeoff to landing.
d8wvQ TIL that Gerald Ford was born as Leslie King Jr. Soon after he was born, Leslie King Sr. drew a butchers knife on his wife and baby son, prompting her to move out, divorce him and remarry a paint salesman named Gerald Ford. They then decided to give the baby his name instead.
R5NoQ TIL about Capitol Hill's mystery soda machine. Operating from around the early 1990s to 2018, this machine would dispense rare discontinued beverages. Supposedly the nearby businesses had no idea who was restocking the machine. After the machine disappeared a note was left saying "Went for a walk".
1aGJ8 TIL of Ben L. Salomon, a dentist in the Battle of Saipan whose field hospital was overrun by the Japanese. He provided cover fire for the wounded to escape and then manned a machine gun for additional cover fire. When his body was found, 98 dead enemy soldiers were piled in front of his position.
LkPDp TIL Android is now the world’s largest earthquake detection network.An Android phone can become a “mini seismometer” because it has an accelerometer — the thing that detects if you’ve rotated it or not. Android’s system uses the data from that sensor to see if the phone is shaking.