The Swiss hypersonic hydrogen jet aiming to fly between Europe and Australia in 4 hours euronews.com Submitted by mancinedinburgh t3_124snr0 on March 28, 2023 at 3:31 PM in Futurology 58 comments 213
U2fan991 t1_je7ujv0 wrote on March 30, 2023 at 1:11 AM I wonder if this company realizes that at 40 plus kilometers in altitude if there is a cabin depressurization, every single person on that plane would die almost instantly? Permalink 0
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