Hey, @HelenaYoest what’s the #physics on this propulsion? #SheKnowsTheAnswer #AskHelena https://t.co/eRmzHSGtps
Hey, @HelenaYoest what's the #physics on this propulsion?#SheKnowsTheAnswer#AskHelena https://t.co/eRmzHSGtps — Jack Yoest (@JackYoest) March 24, 2017 from Twitter https://twitter.com/JackYoest March 24, 2017 at 01:32PM via IFTTT
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