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[–] Food_Stamp 0 points 1 points (+1|-0) ago  (edited ago)

pioneered rocket science and were also regularly beating the u.s. in automotive tech. Watch some old grand prix documentaries, benz and audi were kicking our asses, they were mechanical geniuses. Im pretty sure they could have built sealing doors.

[–] Kepler_20b 0 points 0 points (+0|-0) ago 

Pretty sure that anybody fielding U-Boats had to be building doors that could seal pretty well.

[–] Food_Stamp 0 points 0 points (+0|-0) ago 

Lol. Good point.