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TIL that the actual London bridge is in Arizona. It was taken apart in 1963 from London and shipped over seas to Arizona to help bring people to a new developing town.

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ADvNd TIL of Pierre-Simon Laplace, often referred to as the French Newton, he is credited with translating the geometric study of classical mechanics to one based on calculus. Laplace was one of the first scientists to propose the existence of black holes and the theory of gravitational collapse.
Y7ZWG TIL that Alexei Nikolaevich, son of the last Russian tsar and heir to the throne, had a severe case of hemophilia inherited from his mother, which in turn she had acquired through the line of her maternal grandmother Victoria of the United Kingdom.
0wNy TIL in 1957 Burkhard Heim, a German physicist, theorized a propulsion system that could reach Mars in as little as five hours, and this system is still being researched today.
Ooor6 A hulking Arleigh Burke-class destroyer might typically burn a minimum of about 24 barrels (1,000 gallons) of fuel per hour, but this figure conceals so many factors and variables that the Navy doesn't really use it the way we use "miles per gallon."
x6jw7 Today I learned that apple can be used as a racial slur towards Native Americans.