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  2. Balloon release - Wikipedia

    en.wikipedia.org/wiki/Balloon_release

    A balloon race that took place in Bremen, Germany, in 2009. A balloon release is a ceremonial event in which a number of hydrogen- or helium-filled balloons are launched into the sky. Balloon releases can be done as a prayer ceremony, to create a photo opportunity, to raise awareness of a cause or campaign, or as a competitive long-distance race.

  3. Lawnchair Larry flight - Wikipedia

    en.wikipedia.org/wiki/Lawnchair_Larry_flight

    Like Walters, Couch had a BB gun on hand to shoot the balloons in order to initiate descent. After the flight, he developed a way to release helium from the balloons, allowing for a more controlled descent. [10] [23] During a second flight on July 5, 2008, Couch realized his goal of interstate travel when he landed safely in western Idaho. The ...

  4. Why balloons are now in public eye — and military crosshairs

    www.aol.com/news/why-balloons-now-public-eye...

    A look at why there are so many balloons up there — launched for purposes of war, weather, science, business or just goofing around; why they're getting attention now; and how the U.S. is likely ...

  5. Weather balloon - Wikipedia

    en.wikipedia.org/wiki/Weather_balloon

    A weather balloon, also known as a sounding balloon, is a balloon (specifically a type of high-altitude balloon) that carries instruments to the stratosphere to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.

  6. 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]

  7. Explainer-What is helium and why is it used in rockets? - AOL

    www.aol.com/news/explainer-helium-why-used...

    Helium also has a very low boiling point (-268.9°C or -452°F), allowing it to remain a gas even in super-cold environments, an important feature because many rocket fuels are stored in that ...

  8. Balloons, missiles and planes: What we know about the ... - AOL

    www.aol.com/balloons-missiles-planes-know...

    Not since a balloon crashed in Roswell, New Mexico have inflatable unmanned craft so dominated the American discourse. Alex Woodward and Andrew Feinberg sum up what we learned this week

  9. 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 ...