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2. Suicide bag - Wikipedia

   en.wikipedia.org/wiki/Suicide_bag

   In 2015 author and right-to-die advocate Derek Humphry reported that Worthington Industries, the world's largest manufacturer of disposable helium cylinders, had announced that their helium cylinders will guarantee only 80% helium, with up to 20% air, making them inappropriate for use with a suicide bag in Humphry's opinion. [23]

3. Recreational use of nitrous oxide - Wikipedia

   en.wikipedia.org/wiki/Recreational_use_of...

   Safer use can involve inhalation while seated to decrease risks of injury by falling. Inhalation directly from a tank poses serious health risks, as it can cause frostbite since the gas is very cold when released. For those reasons, most recreational users will discharge the gas into a balloon or whipped cream dispenser before inhaling. [7]

4. Lawnchair Larry flight - Wikipedia

   en.wikipedia.org/wiki/Lawnchair_Larry_flight

   In mid-1982, Walters and his then girlfriend, Carol Van Deusen, purchased 45 eight-foot (2.4 m) weather balloons from a military surplus store [5] and helium tanks from California Toy Time Balloons. They used a forged requisition from his employer, FilmFair Studios, saying the balloons were for a

5. Lifting gas - Wikipedia

   en.wikipedia.org/wiki/Lifting_gas

   A balloon can only have buoyancy if there is a medium that has a higher average density than the balloon itself. Balloons cannot work on the Moon because it has almost no atmosphere. [14] Mars has a very thin atmosphere – the pressure is only 1 ⁄ 160 of earth atmospheric pressure – so a huge balloon would be needed even for a tiny lifting ...

6. Balloon tank - Wikipedia

   en.wikipedia.org/wiki/Balloon_tank

   The use of balloon tanks in the Atlas ICBM was the brainchild of rocket designer Karel Bossart. Instead of the traditional internal framework used on the rockets available at that time, especially the Redstone short-range ballistic missile (SRBM), a direct descendant of the V-2 rocket, the Atlas ICBM designers used the balloon tank concept to lighten the rocket enough to hurl up to a 3.75 ...

7. The fate of America's largest supply of helium is up in the air

   www.aol.com/fate-america-largest-supply-helium...

   The Federal Helium Reserve was supposed to be sold off in 2021. Scientists hope it will remain in government hands. ... was a helium balloon. Scientists estimate that, at the current rate of ...