Weather balloon

A weather balloon is a balloon of these, especially radiosondes used in meteorology to the transport of measuring instruments and. It can reach a height of 20-30 km and stretches it because of the declining with increasing altitude air pressure to a diameter of about twelve meters out before it bursts and the probe returns with a parachute to the ground. The balloon is usually made ​​of rubber and has a weight of only 200 grams. It is usually filled with helium or hydrogen. The latter is in contrast to the rare and expensive helium cheap and readily available, the problem of flammability is rated at the required quantities as a manageable risk.

The probe is attached to the weather balloon. It should be noted here that the probe has a sufficiently large distance from the weather balloon to ascend not in his slipstream. Since the balloon expands, the slipstream would be so great that the variations in the results would be enormous.

The skin of the weather balloon is very sensitive and delicate, so they must be handled with gloves. Even minimal damage that may have consequences on the ground, can result in increasingly strained skin to premature bursting of the balloon at high altitude.

Others

  • The American Larry Walters (better known as Lawnchair Larry ) concocted in 1982 about 45 helium-filled weather balloons and a lawn chair, a provisional aircraft with which he ascended into a two-hour flight to about five kilometers altitude and about 20 kilometers presented.
  • Weather balloons are often used to explain alleged UFO sightings.
818293
de