On Wednesday, July 1, 2020 at 11:11:19 AM UTC-4, David Spain wrote:
On 2020-07-01 10:57 AM, David Spain wrote:
Ride a helium balloon to the edge of space in a pressurized & tethered
gondola! No ill effects from 0g free fall for those with queasy stomachs.

Dave

https://www.msn.com/en-gb/news/newsl...ce/ar-BB16aMVM


I thought helium, the gas is actually "renewable" hydrogen. oh boy.
Helium would be too expensive for this big boy. Can you say reserve
parachute in case of giant flaming ball of gas above you? Yes, yes you
can....

https://thespaceperspective.com/fly/

Dave

Hydrogen is unlikely to burn at those altitudes. Even down lower, it still needs to exit the balloon and mix with oxygen to burn. The Hindenburg did not burn because of the hydrogen. It was that very flammable envelop made from dope (acetate resin) with aluminum dust.