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TIL Unfrosted Pop-tarts have more calories than frosted Pop-tarts

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b6LX7 TIL that 2025 = (20 + 25)^2 = 45^2 which is neat, as 25 is also a square number.
6xKZ TIL…..There is a 3.4 acre indoor Biosphere in Oracle, Arizona that researchers lived in for 2 years and 20 months to see what living on Mars would be like. There are 5 biome areas; a rainforest, ocean, wetlands, savannah grassland, fog desert, and agricultural system. As well as a human habitat.
oBjXE TIL taxi drivers in Cuba make 40 times more than doctors do
LQ6BQ TIL Of the letters of last resort. Each UK nuclear submarine has a safe which contains a letter written by the Prime Minister, with instructions on what to do in the case of nuclear war. They're only to be opened when the UK has been hit by nuclear weapons.
GYEeg TIL: The Jurupa Oak tree in California is estimated at 13000+ years old, reproduces through cloning, and only expands after being burned by wildfires to sprout new branches.