› added 3 years ago

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TIL that contrary to popular belief, British people's teeth are actually on average significantly healthier than American's (and also better than most European's).

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via reddit.com

jN44E TIL the first US-built tanks were too late for use in WWI but during the great depression the US army deployed six to disperse the BONUS army protest of WWI veterans
0w9Ny TIL that the reason some dinosaurs were able to get so large was that they had "air sacks" in and around their bones, which prevented them from being crushed under their own weight and allowing them to grow to enormous sizes.
BrxDd TIL that 97% of the galaxies in our observable Universe are permanently unreachable by humans. The Universe is expanding so rapidly that even if humans left earth today, travelling at the speed of light, they could only ever reach about 3% of the total number of galaxies in our observable Universe.
OGP9a TIL that today's the 40th anniversary of Joe Delaney's heroic sacrifice: The 24-year-old Kansas City Chiefs RB saw 3 kids drowning in a pond on June 29, 1983. Despite not knowing how to swim, Joe jumped in & saved 1 boy before succumbing to the water himself.
ymba TIL a shot glass filled with neutron star matter would weigh as much as Mount Everest.