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TIL that during an experiment, chemist Karen Wetterhahn accidentally spilled two drops of organic mercury on her hand. That small amount of mercury would kill her in less than a year, despite her wearing gloves at the time and taking appropriate measures to clean herself up.

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BgaW TIL that researchers once did an fMRI study showing that a dead salmon demonstrated brain activity when shown a series of photographs. It was done to point out methodological flaws in fMRI research.
xyr5 TIL that a LEGO brick can withstand 950 pounds of force before breaking.
n70B TIL That Spongebob’s “Bikini Bottom” is located under Bikini Atoll, a site for nuclear testing.
0wPrA TIL while the Blue Whale is the largest animal to ever live on Earth, the smallest whale - the Dwarf Sperm Whale - is not much bigger than a person.
YkDv TIL that when they reach a certain elevation, French mountain climbers switch from the formal “vous” to the personal “tu” form of “you”, as all become equal in the face of the enormousness of nature.