› added 1 year ago

29

TIL about the "Rabbit Test," a human pregnancy test developed in 1931, in which urine from a female human would be injected into a female rabbit. The rabbit would be dissected and if its ovaries were enlarged then the human was likely pregnant (~98% certainty). The test was used into the 1970s.

Read more wikipedia.org

via reddit.com

l7nra TIL that when a massive star goes supernova, it produces a flash of light so bright that can equal the combined light of every other star in the galaxy. One such event happened in 1054, it was so bright the light was visible during the day for a month and was still visible for 2 years afterwards.
78M4L TIL the "Triple Crown" of Motorsports includes the Indianapolis 500, Monaco Grand Prix, and 24 Hours of Le Mans—British driver Graham Hill is the only driver to complete the Triple Crown in history.
OQW1 TIL that in WWII, the US Army asked Americans to loan their dogs to the war effort. The dogs’ handlers even sent letters home to their owners for Christmas and to inform them of their dog’s performance throughout the war.
npLW TIL Nail gun injuries are responsible for an estimated 37,000 emergency room visits each year, of which 60% are occupationally-related.
Egxa0 TIL the Las Vegas Strip, or what people commonly picture as Las Vegas, resides in Paradise, NV – a town immediately south of Las Vegas, NV