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TIL the Carthaginian general Hannibal Barca was so terrifying to Rome that they would use the phrase “Hannibal is at the gates” whenever disaster struck. When the romans finally defeated Hannibal, they built statues of him in the streets of Rome to advertise their defeat of such a worthy adversary.
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whatilearned
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TIL that the city of Isfahan immediately surrendered to the turco-Mongol conqueror Timur and was treated with mercy. The city then killed Timur’s tax collector and his soldiers. He ordered the massacre of over 100,000 of the cities citizens and built dozens of piles out of their heads as revenge.
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whatilearned
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TIL The Chicago Sanitary & Ship Canal was built to better connect Chicago to the Mississippi River, and was the world’s largest canal at the time. It provided engineers with the necessary experience to help construct the most pivotal infrastructure project in US history – the Panama Canal.
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whatilearned
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TIL the earliest existing record of a telescope was a 1608 patent submitted to the government in the Netherlands by Middelburg spectacle maker Hans Lipperhey. The actual inventor is unknown but word of it spread through Europe. Galileo heard about it and, in 1609, built his own version.
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whatilearned
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TIL Air Force Research Laboratory created a powerful supercomputer, nicknamed the “Condor Cluster,” by connecting together 1,760 Sony PS3s performing 500 trillion floating-point operations per second (500 TFLOPS). As built the Condor Cluster was the 33rd largest supercomputer in the world.
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whatilearned
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TIL The Vuoristorata, a wooden rollercoaster at the Linnanmäki amusement park in Helsinki, Finland, is operated by a brakeperson standing at the rear of the train. Designed by Valdemar Lebech and built in 1950, it was the last rollercoaster in the world built using side friction technology.
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whatilearned
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