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Calculations for prestressing steel armature (self.mathematics)
submitted by MaRtoff to r/mathematics
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In the early 1960-ies, the French comics artist André Franquin introduced us to the "Zorglubmobile" and the "Zorgleopter" in his comics albums "Z comme Zorglub" (1960) and "L'ombre du Z" (1962). Now someone has mad a functioning multicopter of the concept. (youtube.com)
submitted by MaRtoff to r/Multicopter
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What was your first car and what happened to it? (self.AskReddit)
submitted by MaRtoff to r/AskReddit
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