› added 11 years ago

95

TIL, that ancient sloths were as big as rhinos. They were only exceeded in size by mammoths in other land mammals. There eventual extinction was due to human hunters.

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AD1oa TIL about the Jantar Mantar observatory built in the early 1700's in Jaipur. A set of 19 massive and highly accurate astronomical instruments
oRKxR TIL that 18-year-old Humphrey Bogart joined the Navy during WWI because he had no viable career options.
KONX9 TIL that Facebook's primary color is blue because Zuckerberg is red–green colorblind, a realization that occurred after a test undertaken around 2007
JYmol TIL there is a town in New Mexico named "Truth or Consequences". They changed it from "Hot Springs" in 1950 to win a radio contest.
JYvRv TIL of the McCollough effect, a visual phenomenon which alters perception of horizontal and vertical lines. The effect can last for up to three months, if the viewer looks at the images that trigger it long enough.