› added 8 months ago

28

TIL The US National Solar Observatory requires a swimming pool’s worth of ice to be added each night into its tanks so coolant can be distributed through the observatory. The heat is intense enough to rapidly melt metal at the telescope mirror’s focal point

Read more theguardian.com

via reddit.com

8adEX TIL, The Netherlands gives Canada 20,000 tulips every year as a thank you for protecting the Dutch royal family in ww2
y75v TIL: In 2011, a pair of managers from Dominos set fire to a Papa Johns to boost their sales
OoRPe TIL that in the original Grimms' Rumpelstiltskin (1812), when the imp's name was revealed, he fled in surrender, never to be seen again. In 1857, the Grimms rewrote a new, more brutal ending, wherein the Imp, in defeat, plants one foot in the ground, grabs the other, and tears his own body in half.
g5Nb TIL Rosey Grier, the only surviving member of the LA Rams’ famed “Fearsome Foursome”, worked as a bodyguard for Robert Kennedy when he was assassinated. Although unable to prevent the killing, Grier took control of the gun and subdued the shooter.
R5Kkw TIL Britain used tommy guns in ww2