Spotted here:
“Hypergolics have been used all the way back to the Apollo era and before,” said Steven Son, Purdue’s Alfred J. McAllister Professor of Mechanical Engineering,
Ah, "before." Yeah, I guess the run-up to WWII was a bit before the Apollo era, wasn't it? LMDDGTFY.
"Apollo", from "a-", meaning without, and "pollo", meaning chicken.</chubbyemu>
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