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  2. Recreational use of nitrous oxide - Wikipedia

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

    3 liter can of recreational nitrous oxide to fill up balloons. A report from Consumers Union report from 1972 (based upon reports of its use in Maryland 1971, Vancouver 1972, and a survey made by Edward J. Lynn of its non-medical use in Michigan 1970) found that use of the gas for recreational purposes was then prevalent in the US and Canada ...

  3. 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. [15] 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 ...

  4. Lawnchair Larry flight - Wikipedia

    en.wikipedia.org/wiki/Lawnchair_Larry_flight

    Cluster ballooning was inspired by Larry Walters's experience, although his was not the first. [1]On July 2, 1982, Larry Walters (April 19, 1949 – October 6, 1993) made a 45-minute flight in a homemade aerostat made of an ordinary lawn chair and 42 helium-filled weather balloons. [2]

  5. Balloon - Wikipedia

    en.wikipedia.org/wiki/Balloon

    The enclosed helium atoms escape through small pores in the latex which are larger than the helium atoms. However, some types of balloons are labelled "helium-grade". These balloons are often thicker and have less porosity. [3] Balloons filled with air usually hold their size and shape much longer, sometimes for up to a week.

  6. Here's why meteorologists launch weather balloons every day

    www.aol.com/weather/heres-why-meteorologists...

    Synchronized weather balloon launches have helped meteorologists create forecasts over the past 150 years, and now the old tradition is going high tech. Twice a day - every day of the year ...

  7. High-altitude balloon - Wikipedia

    en.wikipedia.org/wiki/High-altitude_balloon

    High-altitude balloons or stratostats are usually uncrewed balloons typically filled with helium or hydrogen and released into the stratosphere, generally attaining between 18 and 37 km (11 and 23 mi; 59,000 and 121,000 ft) above sea level. In 2013, a balloon named BS 13-08 reached a record altitude of 53.7 km (33.4 mi; 176,000 ft). [1]

  8. Don't expect a balloon drop quite yet. How the virtual roll ...

    www.aol.com/news/dont-expect-balloon-drop-quite...

    WASHINGTON (AP) — Don't expect a balloon drop, at least not yet. Delegates to the Democratic National Convention will officially select their nominee for president in a process that begins Thursday.

  9. 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).