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TIL Two rats in an ideal environment can turn into 482 million rats over a period of three years.

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Qrpd TIL that there are dozens of houses in Detroit for sale at $1 a piece.
nemMo TIL Grave robbers target confederate soldiers in the United States. Items can be sold at high prices to antique collectors. Button from confederate uniform ($150); full uniforms and medals ($500+); swords used by generals ($20,000+).
KO04G Protons are made up of even smaller particles called quarks, so you might expect that simply adding up the quarks’ masses should give you the proton’s mass. However, that sum is much too small to explain the proton’s bulk. And new, detailed calculations show that only 9 percent of the proton’s heft comes from the mass of constituent quarks. The rest of the proton’s mass comes from complicated effects occurring inside the particle, researchers report in the Nov. 23 Physical Review Letters.
M76DV TIL there is an 85 mile stretch of land on the Mississippi River called "Cancer Alley" due to the concentration of petrochemical and refinery plants there.
KYbQJ TIL in 2016 a man found an extremely obscure CD with no information available about the band, resulting in a 4 year online search for band members, who have now reformed and produced a second album, more than 20 years after the first