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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...

   The gas is then inhaled from the balloon or dispenser. [30] This is necessary because nitrous oxide is very cold when it undergoes adiabatic decompression on exit from a canister; inhalation directly from a tank is dangerous and can cause frostbite of the larynx and bronchi. [31]

4. Balloon - Wikipedia

   en.wikipedia.org/wiki/Balloon

   Balloon rockets work because the elastic balloons contract on the air within them, and so when the mouth of the balloon is opened, the gas within the balloon is expelled out, and due to Newton's third law of motion, the balloon is propelled forward. This is the same way that a rocket works.

5. Tethered Aerostat Radar System - Wikipedia

   en.wikipedia.org/wiki/Tethered_Aerostat_Radar_System

   The hull of the aerostat contains two parts separated by a gas-tight fabric partition. The upper chamber is filled with helium and provides the aerostat's lifting capability. The lower chamber of the hull is a pressurized air compartment. The hull is constructed of a lightweight polyurethane-coated Tedlar fabric. An airborne engine drives the ...

6. Cryogenic storage dewar - Wikipedia

   en.wikipedia.org/wiki/Cryogenic_storage_dewar

   A cryogenic storage dewar (or simply dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature. It is named after inventor James Dewar, who developed it for his own work. They are commonly used in low-temperature physics and chemistry.

7. All of the best Black Friday deals: Amazon, Walmart, Wayfair ...

   www.aol.com/lifestyle/all-of-the-best-black...

   Updated: Black Friday's best weekend deals are here on Apple AirPods and iPads, Samsung TVs, Bissell vacuums, KitchenAid and Ninja small appliances, gifts for men, women and kids — and more.

8. Gas balloon - Wikipedia

   en.wikipedia.org/wiki/Gas_balloon

   The first launch of a gas balloon by Jacques Charles and Les Frères Robert, 27 August 1783, at the Champ de Mars, Paris.Illustration from the late 19th century. A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air (such as helium or hydrogen).

9. Balloonfest '86 - Wikipedia

   en.wikipedia.org/wiki/Balloonfest_'86

   Balloonfest '86 was an event in Cleveland, Ohio, United States, held on September 27, 1986, in which the local chapter of United Way set a world record by releasing almost 1.5 million balloons.