› added 12 years ago

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TIL that the 15 largest commercial ships in the world create as much pollution in a year as every car on the planet

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aKNZ TIL school teachers have been using red ink to correct assignments for at least 3900 years
jNZLE TIL that while they were originally thought to be white with black stripes because of their white belly, zebras are actually black (where the pigment is activated) with white stripes (where the pigment is inhibited) as shows embryological evidence
rnMd TIL in 1956, the U.S. passed the Refrigerator Safety Act, which made it mandatory for all fridges to be magnetically sealed. This was due to the high amount of children who suffocated in latched refrigerators.
oQ6R TIL of the North American X-15, a rocket plane from the 1950’s that achieved the manned airspeed record in 1967 when William J. “Pete” Knight flew it 4,520 miles per hour (7,274 km/h).
KOk0Q TIL: SWISS MADE means the watch only has to have 60% swiss components.