› added 5 days ago

1

TIL Graham's Number. An immense finite integer that once held the record as the largest number ever used in a serious mathematical proof.

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KOvOw TIL Zodiac symbols also correspond to alchemy processes and were part of a larger system of symbols that were used as notation in proto-chemistry formulas in the early modern period
Z8akY TIL that Ernie Hudson, who played Winston Zeddmore in Ghostbusters, auditioned for the same charracter in the animated series two years later, but didnt get the part because they didn't think he sounded enough like Winston from the movie.
0NZ1 TIL that Bruce Lee was so fast that the fight scenes in his movies had to be slowed down to see.
woX7W TIL China has the most skyscrapers in the world. It has so many in fact that the next 13 countries combined still have less skyscrapers than China.
VM6em TIL The Roman Army used some marching songs, like many of today's militaries, while on the move. Unfortunately, only one genuine song survives today, called Urbane (or Urbani by some).