› added 9 months ago

37

TIL that Robert Downey Jr., Sean Penn and Charlie Sheen went to the same high school.

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d8Paj TIL that inter-service rivalry as well as tactical differences between the Imperial Japanese Army and the Imperial Japanese Navy hampered the already deteriorating war effort during WW2. The rivalry was so bad that the Army has their own ships and the Navy has their own infantry groups.
d8BJ8 TIL The Earth's rotation and speed changes with the weather and geological events. This means atomic time and solar time may not be identical. Sometimes leap seconds are needed for an adjustment. On 31 Dec 2016, a leap second was added, and the time 23:59:60 existed.
a6yA TIL that American Indians weren’t considered citizens of the U.S.A until 1924.
0d9OR Today I learned that the Five Point Palm Exploding Heart Technique from Kill Bill is somewhat based on reality. It’s called Commotio Cordis, where sudden cardiac arrest can result from a single (not necessarily heavy) blow to the chest at a very particular moment in the heart’s rhythm.
vEXL TIL that some elevators have a mode called Sabbath service which let people use the elevator without pressing a button