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TIL the first supersonic airliner was not the Concorde or Tu-144, but a DC-8. During a test flight in 1961 it achieved supersonic speed for 16 seconds while in a dive. Accompanying the airliner in a chase plane was Chuck Yeager, the first pilot to break the sound barrier.

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olnK TIL Albert Einstein had a daughter in 1902 but no-one knows what happened to her
mxK9P TIL in 1911, a "witchcat" appeared near Pottsville PA. It caused hens to crow like rooster and pigs to bark like dogs. Thomas Howell, the man who saw it, died along with eight cows and horses, the deaths attributed to a hex. The family crafted a golden bullet to shoot the cat and break the hex.
KA9w TIL that Roger Ebert wrote three movies, Beyond the Valley of the Dolls, Up! and Beyond the Valley of the Ultra-Vixens. All skin flicks,
8avDZ TIL Clowns paint their faces onto eggs to copyright them so other clowns can't use the same face. There is a registry of egg faces in both Europe and in the United States.
kJ01 TIL that in 2014, Nickelodeon will be releasing the sequel to the Spongebob Squarepants movie to commemorate 15 years of Spongebob.