› added 11 years ago

97

TIL that a blue whale is so large that its tongue weighs the same as an elephant and its heart weighs the same as a car.

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Oonr6 TIL a number is divisible by 3 if the sum of the digits is divisible by 3. We know the number 627, for instance, is divisible by 3 because 6+2+7=15, which is divisible by 3.
Oo01L TIL of Olivia Hooker, a survivor of the Tulsa race massacre who became the first African-American woman to enter the U.S. Coast Guard in 1945.
xaaw TIL there was a band of 150 gay couples from Thebes, who defeated a Spartan army, and went undefeated for 30 years. The Sacred Band of Thebes
rRXm0 TIL The flame of a lighter is actually hollow and lighter flames can reach 3,500 degrees.
8ey5Z TIL oranges and human vaginas are about the same acidity. Oranges are typically between 3.7 and 4.3 PH and the human vagina typically varies between 3.8 and 4.2 PH