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TIL that after discovering Jupiter's intense radiation belt , NASA needed a last minute fix to shield the exterior cables of the Voyager deep space probes. They sent a technician to the local supermarket, bought all of the kitchen grade aluminum foil, and wrapped it around the cables.

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mZ8y TIL Lord Of The Rings is the second “most begun but never finished book” ever.
9YkwM TIL: Veterinary doctors have a high suicide rate and experience psychological distress at a rate nearly double that of the general public
AN7nl TIL of the Boy Scout Nuclear Science Merit Badge. The requirements to receive the badge include building a Geiger counter, planting irradiated and nonirradiated seeds, and visiting an accelerator (research lab) or university where people study the properties of the nucleus or nucleons.
vPwPr TIL that there is a sound installation in the Namibian desert that is continually playing a loop of Africa by Toto.
NXE41 TIL That the first armored presidential vehicle in the US was confiscated Al Capone's car feds gave to Franklin D. Roosevelt