› added 7 years ago

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TIL: It has been estimated that 80% of all Marriages in Human History have been between 1st and 2nd Cousins.

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p8Ka4 TIL Siegel and Shuster created Kryptonite in 1940, in an unpublished Superman story 3 years before it appeared on the radio show. DC Comics rejected the story because among other things Superman revealed his secret identity to Lois, causing their relationship to change and upsetting the status quo.
5Ykgn TIL that refrigerators with the freezer on the upper part is more energy efficient than those with the freezer on the lower part. This is because colder air is denser, and if the freezer compartment is on the top, cold air can just passively move to the fridge compartment on the lower part.
y0ee TIL George Washington is considered by most historians to have been a bad public speaker.
QK7k TIL that until 2011, anything containing less than 10% alcohol in Russia was just considered foodstuff.
5YeJD TIL that there was an episode of the Twilight Zone in which three astronauts survive a crash landing and wander through the desert until the last man alive realizes he never left earth. Rodd Serling would use a lot of this plot for a film he helped write called "Planet Of The Apes"