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Videos mentioned: Why Are I-Beams Shaped Like An I: https://www.youtube.com/watch?v=zSz0kV0BPDY Steam Engines: https://www.youtube.com/watch?v=fsXpaPSVasQ Veritasium: https://www.youtube.com/watch?v=ty9QSiVC2g0&feature=youtu.be

Why Are Plane Wings Angled Backwards?: https://www.youtube.com/watch?v=GXFpLnPpDtY Why Are The Dreamliner's Windows So Big?: https://www.youtube.com/watch?v=7-I20Ru9BwM

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Thank you to my patreon supporters: Adam Flohr, darth patron, Zoltan Gramantik, Josh Levent, Henning Basma, Karl Andersson, Mark Govea, Mershal Alshammari, Hank Green, Tony Kuchta, Sam Stockdale, Jason A. Diegmueller, Chris Plays Games, Peter Hogan-De Paul, William Leu, Frejden Jarrett, Vincent Mooney & Ian Dundore

Once again thank you to Maeson for his amazing music. Check out his soundcloud here: https://soundcloud.com/maeson-1/tracks