In this fascinating Fran Lab video, Fran Blanche talks about the origins of WD-40, what it is actually for, and how people misuse it.
I was aware of some of this (e.g. the WD stands for “Water Displacement” and it was the 40th attempt at the formula, hence WD-40), and I knew it was developed for rockets, but I was not aware of exactly how it was used on the Atlas rocket to prevent ice from sticking to the rocket. I also don’t think I ever knew exactly how the pressurized “balloon tank” technology on the Atlas worked. Fascinating stuff.
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