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TIL Airports use ultrahigh pressure washing trucks to remove rubber from runways. When a plane lands, the tires are not spinning and drag, emitting a puff of smoke. The friction built up causes the rubber to polymerize and harden, leaving rubber which needs to be periodically removed

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0dvVN TIL of the HMS Royal George, the largest warship in the world at the time of her launch in 1756. Her sinking near Portsmouth killed more than 800 people, making it one of the most deadly maritime disasters in British territorial waters. Many who died were women and children, visiting family onboard.
lo0xG TIL that in 1972, the Tutsi-dominated army and government of Burundi killed 100k-150k educated Hutus.
aaGy TIL reindeer are one of the only mammals that can see UV light, allowing them to see lichen, polar bears against the snow, and urine trails
d8YD7 TIL the G.W Zoo Comments on youtube are turned off and i'm disappointed...
4kMVw TIL the 1883 eruption of Krakatoa was so intense that it obliterated most of the island and its surrounding archipelago. The explosion was equivalent to 200 megatons of TNT, and the ash cloud lowered global temperatures, leading to a "volcanic winter".