› added 3 months ago

4

TIL the brain literally shrinks during dehydration. Even mild dehydration (1–2%) causes the brain to temporarily contract, which is why thinking feels harder.

Read more pmc.ncbi.nlm.nih.gov

via reddit.com

e0wJb TIL the Aquatic Ape Theory suggests that early hominids lived in water part of the time and accounts for our hairless bodies (streamlined for swimming) our upright, two-legged walking (made wading easier) & our layers of subcutaneous fat, which made us better insulated in water (think whale blubber)
lLgV TIL in 2012 a charity dropped off boxes in a remote African village containing Xoom tablets with no instructions. Within 4 minutes a child turned one on. Within 5 days, kids were using 47 apps per child, per day. Within 2 weeks they were singing ABC songs. Within 5 months they had hacked Android.
b67jp TIL Jimi Hendrix joined the Army after he was caught Joyriding and given the choice between prison or service. He served in the 101st Airborne and was qualified as a Paratrooper. Due to his inability to function in an authority environment, he was given a general discharge under honorable condition.
a8wZL TIL that the Turia river in Valencia was permanently diverted after constant flooding causing damage to surrounding areas, the old riverbed is now a verdant sunken park.
VMvMD TIL that during the Lewis & Clark expedition Sacagawea was reunited with her brother Cameahwait, the "Great Chief" of the Lemhi Shoshones. This led to generous aid including selling horses, carrying cargo, sharing knowledge of the Bitterroot Mountains and the Columbia River, and supplying a guide.