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TIL a 1-kilometer cube cumulous cloud would weigh about 1.1 million pounds.

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yV0OX TIL In 1920s Paris, artist Waldo Peirce gifted his concierge a turtle and, as a prank, secretly swapped it for several progressively larger ones, convincing her its growth was a miracle. Once the neighborhood marveled, he reversed the prank, using the same turtles, leaving her utterly baffled.
j6RaX TIL The radiomessage PAN-PAN is the international standard urgency signal that someone aboard a boat, ship, aircraft, or other vehicle uses to declare that they need help and that the situation is urgent, but does not pose an immediate danger to the vessel or anyone's life
NXlJ8 TIL that in 1990, a young woman was found hanged near the Spanish border town of Portbou — elegantly dressed, with no ID, and no past. For 34 years, no one has known who she was. Now, new DNA tech might finally reveal the truth behind Spain’s most haunting mystery.
m1rpE TIL a 2x4 is actually 1.5x3.5 inches
OoYLg TIL an iceberg with a red streak of paint along its base was found on April 15, 1912, close to where the Titanic sank