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  2. Lawnchair Larry flight - Wikipedia

    en.wikipedia.org/wiki/Lawnchair_Larry_flight

    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] The aircraft rose to an altitude of about 16,000 feet (4,900 m), drifted from the point of liftoff in San Pedro, California , and entered controlled airspace ...

  3. Cluster ballooning - Wikipedia

    en.wikipedia.org/wiki/Cluster_ballooning

    Cluster ballooning is an extreme sport and a form of ballooning where a harness attaches a balloonist to a cluster of helium-inflated rubber balloons. Unlike traditional hot-air balloons , where a single large balloon is equipped with vents enabling altitude control, cluster balloons are multiple, small, readily available and individually ...

  4. Two-balloon experiment - Wikipedia

    en.wikipedia.org/wiki/Two-balloon_experiment

    Fig. 2. Pressure curve for an ideal rubber balloon. When air is first added to the balloon, the pressure rises rapidly to a peak. Adding more air causes the pressure to drop. The two points show typical initial conditions for the experiment. When the valve is opened, the balloons move in the direction indicated by the arrows.

  5. Balloon Experiments with Amateur Radio - Wikipedia

    en.wikipedia.org/wiki/Balloon_Experiments_with...

    The experiments started in the year 2000 and continued with BEAR-9 in 2012 reaching 36,010 metres (118,140 ft). [1] [2] The balloons are made of latex filled with either helium or hydrogen. All of the BEAR payloads carry a tracking system comprising a GPS receiver, an APRS encoder, and a radio transmitter module.

  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. Research balloon - Wikipedia

    en.wikipedia.org/wiki/Research_balloon

    Research balloons are balloons that are used for scientific research. They are usually unmanned, filled with a lighter-than-air gas like helium, and fly at high altitudes. Meteorology, atmospheric research, astronomy, and military research may be conducted from a research balloon. Weather balloons are a type of research balloon. Research ...

  8. Science Max - Wikipedia

    en.wikipedia.org/wiki/Science_Max

    Science Max: Experiments at Large is a Canadian children's television series, which premiered on TVOntario's TVOKids and Da Vinci Kids programming block in 2015. [1] Hosted by Phil McCordic , the series educates viewers about science through large-scale experiments to demonstrate scientific principles.

  9. Toy balloon - Wikipedia

    en.wikipedia.org/wiki/Toy_balloon

    Inflated party balloons. A toy balloon or party balloon is a small balloon mostly used for decoration, [1] advertising and as a toy. Toy balloons are usually made of rubber or aluminized plastic and inflated with air or helium. They come in a great variety of sizes and shapes but are most commonly 10 to 30 centimetres (3.9 to 11.8 in) in diameter.