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45

TIL -40° Celsius is the same temperature as -40 Fahrenheit°.

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MPNK TIL: HYDROX is the original and OREO is the knockoff. Sunshine made Hydrox in 1908 and Oreo copied it in 1912, yet Hydrox is perceived as the knockoff. Hydrox cookies have a tangy, less-sweet filling and a crunchier cookie that gets less soggy in milk. Hydrox will relaunch nationally in 2015.
PNmn TIL that for around 100 years in the 16th/17th centuries, almost all European cartographers charted the position of ‘Frisland’, a North Atlantic island that didn’t actually exist.
6EZa7 TIL the comic book series, The Crow, was originally created by James O'Barr as a means of dealing with the death of his fiancée at the hands of a drunk driver.
xjwg TIL that the tumbling tumbleweed (Kali tragus), a long standing symbol of the lonely American West, is actually a foreign introduced species from Asia commonly called ‘Russian thistle’.
Me1pb TIL Tesseract is the name of a real geometrical concept - it is a cube in 4-dimensional space. It is a 4D shape whose every face is a cube. Just like a cube can be unfolded into 6 squares in 2D space, a tesseract can be unfolded into 8 cubes in 3D space.