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One is that atmospheric pressure is dramatically reduced at high altitudes, so a helium balloon expands as it rises and eventually explodes. If you inflate a balloon beyond its limits at room temperature, it will break into small pieces up to about ten centimetres long.
In two hours, a weather balloon can rise above the clouds, higher than the paths of jet planes, passing through the ozone layer in the stratosphere. Reaching altitudes of 35 km (22 miles) or higher, the balloons endure temperatures as cold as -90° C (-130° F).
Watching them fly off up into the sky, there seems no limit to how high a helium balloon can go. In reality, there are two major constraints: the strength of the balloon material, and Archimedes’s principle. As a balloon ascends, the pressure of the surrounding air drops while the helium inside expands. Toy balloons burst at around 10km ...
24 Απρ 2023 · The helium balloon displaces an amount of air (just like the empty bottle displaces an amount of water). As long as the helium plus the balloon is lighter than the air it displaces, the balloon will float in the air.
24 Απρ 2023 · If you put helium in a balloon and let go of the balloon, the balloon rises until it pops. When it pops, the helium that escapes has no reason to stop — it just keeps going and leaks out into space. Therefore, in the atmosphere there is very little helium at any given time.
22 Νοε 2019 · As a weather balloon rises into high altitudes, where air pressure decreases, the helium or hydrogen pressure inside the balloon increases and expands the balloon. This way the balloon and the radiosonde can rise at a consistent pace high into the atmosphere.
