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318

TIL Play-Doh’s scent is trademarked...and that you can trademark smells.

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4kg TIL that Tesla said that if you stick a rod far enough into space the temperature difference would create an electrical current and a motor could be run off it and that this (while not doing any work itself) did not violate the second law of thermodynamics.
4knvJ TIL that American media reform originated as a movement to increase equal access to public education through radio instruction.
E19VX TIL that the Mall of America doesn't have a central heating system. Instead, it uses the body heat of people inside it and sunlight, even in the winter.
wKm1 TIL there are more teachers in the top 1% of US household than there are engineers
kJYQ5 TIL That on March 8, 2012 a fistfight broke out in the audience during the performance of Brahms’ Symphony No. 2 by the Chicago Symphony Orchestra .