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TIL - When welding Galvanized Steel, your PPE should include a respirator to prevent severe illness

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pojA TIL In the original script of the Matrix film, Switch changed genders upon entering the Matrix, which coined their name, Switch. This may be a reflection of Lana Wachowski’s struggles with her gender identity, which were unknown to the public at the time.
l7lNN TIL that snails can sleep for three years.
mx0ex TIL in 1952, at the age of 18, Donnie Dunagan became the Marine's youngest-ever drill instructor. He served 3 tours in Vietnam and was wounded several times, earning 3 purple hearts. He also kept a secret for over 50 years that he was a child actor and the voice of young Bambi.
e0Mk TIL the Australian Boab tree is so large and hollow that they were once used as temporary holding cells for Aboriginal prisoners
4kyA5 TIL that Nintendo character Mario was named after a real life businessman, Mario Segale. When the company fell behind on rent, Segale gave them a second chance to come up with the money. Nintendo paid their debt and named their flagship character after him.