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TIL that a clause that contains another clause is called a matrix clause. A clause within a clause is called a matrix clause, not inception clause. Matrix clause! SMDH

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nely9 TIL In 1957, five US Air Force officers volunteered to stand at 'ground zero' directly under a nuclear explosion 18,500 feet above their heads to 'prove how safe it was'
nWXR9 TIL of the Cycloped, a "train" entered into the Rainhill Trials, a competition between engineers to design the most efficient locomotive. It consisted of a horse on treadmill, could only reach speeds of 5 MPH, and was disqualified after it fell through the platform.
eE5D TIL that mammals that live in urban areas have proportionally larger brains compared to those of the same species in rural areas.
deK8 TIL that more than 190 concentration camps were built by the fascist Francoists to imprison and kill Spanish Republicans during the Spanish Civil War.
KYJ9R TIL one of the top trial lawyers in Alaksa built a 17-floor whimsical house in the Talkeetna wilderness referred to as “Dr. Seuss House”.