› added 5 years ago

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TIL that an Anti seat-belt advocate, Derek Kieper, once wrote that “Uncle Sam is not here to regulate every facet of life no matter the consequences.” He later died after being thrown from his vehicle while driving without a seat-belt.

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6adZ TIL that the Portuguese Man-O-War is not a jellyfish, but a siphonophore, which is a colonial organism.
x6ajw TIL: If you cut 2 different sponges up, disaggregate them (push them through a sieve), and mix the 2 cell-slurries together - the sponge cells reassociate with their own cells, but not cells of the other species. This is being studied to understand tissue repair and transplant rejection.
4wA5 TIL that the ring-shaped donut was invented by 16 yeard old Hanson Gregory. He hated how the original shaped donuts tasted raw in the middle - so he punched out a hole with a pepper shaker.
8ag9P TIL the night sky is different is the southern hemisphere. Also the moon is upside down?
Kgl6 TIL there was a very unusually high number of put/call options on United and American Airlines stock before 9/11, no other airlines saw this activity