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Balloon Experiments with Amateur Radio (BEAR) is a series of Canadian-based high-altitude balloon experiments by a group of Amateur Radio operators and experimenters from Sherwood Park and Edmonton, Alberta. The experiments started in the year 2000 and continued with BEAR-9 in 2012, reaching 36.010 km (22.376 mi).
Trappe continued to experiment in cluster ballooning flights. In 2011, he replicated the floating house from the animated film Up for a National Geographic television program. [28] On July 6, 2015, Daniel Boria of Calgary, Alberta, Canada, tied about 100 helium balloons to a garden chair and flew over his city in a publicity stunt.
The ascent time to 80,000 feet (24,000 m) was usually about three hours. As the balloon system approached the ceiling altitude, the excess lift (referred to as "free lift") that drove the system upward on launching filled out a duct system of the lifting balloon, and helium was automatically vented from the lifting balloon and slowed the ascent.
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.
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.
The Antarctic Impulsive Transient Antenna (ANITA) experiment has been designed to study ultra-high-energy (UHE) cosmic neutrinos by detecting the radio pulses emitted by their interactions with the Antarctic ice sheet. This is to be accomplished using an array of radio antennas suspended from a helium balloon flying at a height of about 37,000 ...
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.
Project Mogul was the forerunner of the Skyhook balloon program, which started in the late 1940s, as well as two other espionage programs involving balloon overflights and photographic surveillance of the Soviet Union during the 1950s, Project Moby Dick and Project Genetrix. The spy balloon overflights raised storms of protest from the Soviets. [2]