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TIL In 1863, scientists started to doubt that the Sun is actually burning coal and proposed that the heat of the Sun has been kept up by meteoric bodies falling into it. "If the sun were composed of coal, it would last at the present rate only 5,000 years"

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V9op TIL Diesel and House Heating Oil are the same fuel. The difference is Heating Oil is dyed red and does not have a road tax applied to it making it cheaper. You can use it in off road machinery but it is illegal to use in a truck or car utilizing public roadways.
X15X TIL that Amazon removed text-to-speech features for the vision impaired from later Kindle models, for fear that it would cut into profits from audiobooks
oYYr TIL the most successful interrogator of WWII preferred friendliness to torture. The U.S. military later incorporated his methods into its curriculum at its interrogation schools. Many of Scharff’s methods are still taught in US Army interrogation schools.
GAGdQ TIL that human teeth are the only part of the body that cannot repair themselves.
8a5OP TIL "Trial by combat" has never been abolished in the United States and is still technically valid by US law