▲ 131 ▼ Stratospheric airship flew from US to Japan and back (arstechnica.com) submitted 2 days ago by derrickoswald@sh.itjust.works to c/technology@lemmy.world 8 comments fedilink hide all child comments It seems with an unmanned airship they should be using hydrogen for the ~8% increased payload capacity.
[+] MonkderVierte@lemmy.zip -5 points 1 day ago* (1 child) [deleted] permalink fedilink source parent hideshow 1 child comment replies: [–] dreamkeeper@lemmy.world 5 points 1 day ago Helium is not extracted from the air permalink fedilink source parent
[–] dreamkeeper@lemmy.world 5 points 1 day ago Helium is not extracted from the air permalink fedilink source parent