› added 1 week ago

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TIL Astronauts' bones shed weight in Space, losing as much as 1.5% of their mineral density each month, and recover most of it back on Earth. Interestingly, astronauts with permanent mineral density loss don't seem to experience more bone fractures than normal

Read more nasa.gov

via reddit.com

v1Jaj TIL that Indigenous Australians took up smoking several decades before European colonisation.
oR5Jr TIL about hindsight bias—the tendency to believe, after an event, that we could have predicted its outcome with certainty. It also leads people to judge historical figures based on prevailing contemporary opinions.
mvo TIL that London will be the first city to have ever hosted the Olympics three times. 1908, 1948, and now 2012.
8eKoZ TIL the walls are moving, not the floor, in Jamiroquai's Virtual Insanity.
mbpE TIL that US President Grover Cleveland bought a baby carriage for a child who would later become his wife.