› added 5 years ago

72

TIL the first man to get an implanted heart pacemaker in 1958 had it replaced with 21 subsequent models.

Read more dicardiology.com

via reddit.com

bvX9 TIL In the Bulgarian Balkan is an abandoned socialist monument that looks like a UFO.
wL8n6 TIL that 70% alcohol is better at disinfecting surfaces than 91% alcohol. In one experiment, a 50% alcohol solution killed Staphylococcus Aureus in less than 10 seconds, but a 90% solution failed to kill it even after two hours of contact time.
1apmD TIL that not all Norse soldiers who die in battle go to Odin’s hall, Valhalla. Half go to Freyja’s field, Fólkvangr, which has a different hall: Sessrúmnir. Freyja rides a chariot pulled by two cats and occasionally rides her boar, Hildisvíni (who is actually her protégé Óttar, disguised).
oRW4R TIL Lincoln's cabinet was a team of rivals, including notable William Seward, who was initially resentful & condescending of the president. The two eventually became close personal friends, spending many nights bonding over stories, good humor, & politics, much to the dismay of other cabinet members
Lk1oZ TIL That seven sealed cases of moon rocks have yet to be opened since leaving the moon.