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  2. 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 ...

  3. 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.

  4. 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.

  5. 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 ...

  6. Project Excelsior - Wikipedia

    en.wikipedia.org/wiki/Project_Excelsior

    Project Excelsior was a series of parachute jumps made by Joseph Kittinger of the United States Air Force in 1959 and 1960 from helium balloons in the stratosphere.The purpose was to test the Beaupre multi-stage parachute system intended to be used by pilots ejecting from high altitude.

  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. 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 ...

  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 ...