› added 7 years ago

399

Yes, the universe itself will eventually outpace the speed of light.

Read more popsci.com

v1vxL TIL happy cows actually do produce better milk. Higher levels of serotonin (a chemical associated with feelings of happiness), led to improved blood calcium in cows, reducing chance of disease and improving nutritional quality of the milk.
41bJ TIL that the Gobekli Tepe, which predates Stonehenge by over 6,000 years, is a large monument built in the middle of nowhere. It predates the invention of known tools, cities/communities, and the written word.
x6V7o TIL that the first tanks carried two pigeons for sending messages. The pigeons were thrown from dedicated hatches in the armor with short messages attached to them and flew back to headquarters.
4kBD5 TIL that swinging our arms when walking makes us spend less energy and walk faster than if we tried to hold them still.
1JD7 TIL that the first movie shown in a theater setting caused the audience to run away because they thought a train was going to come out of the screen.