› added 8 years ago

482

TIL humans can enter sleep cycles of 24-48 hours in the absence of sunlight

Read more sciencealert.com

via ift.tt

lokvr TIL that in 1977 the FDA made a policy to exclude "all women of childbearing potential" from clinical trials after thalidomide (an anti-nausea drug used in pregnancy) caused detrimental birth defects.
vPP97 TIL facial movements commonly thought to signal particular emotions regardless of context, person, and culture are not universally diagnostic of emotional states
E11w TIL that when Mr Potato Head first appeared in 1952, only the parts were supplied and parents had to provide the potato to stick the bits into.
VB7Gp TIL of the Christmas Bombings of December 18-29, 1972, Where the United States reletlessly bombed Hanoi and Haiphong targeting both military and civilian areas, including schools and hospitals. Thousands of Vietnamese civilians were victims to this campaign.
6EmLJ TIL that 3 presidents--Adams, Jefferson, and Monroe--all died on July 4th. Calvin Coolidge was born on July 4th.