What is the stratosphere?
The stratosphere is an area of the Earth's atmosphere, above the troposphere and under the mesosphere. Unlike the troposphere below it, which increases above the height, temperatures in the stratosphere increase as altitude, because the upper part of the stratosphere is heated by direct absorption of ultraviolet radiation through our sun.
The point at which the stratosphere begins, tropopause, is measured according to the point where this temperature inversion begins to take place. The height of the stratosphere varies depending on what latitude we are talking about: in the middle latitudes, the stratosphere starts about 10 km (6 mi) above the surface and ends at 50 km (31 mi), only 8 km (5 Mi) starts at the poles. This is because the Earth on the poles is so cold, it does not last too much than the higher temperatures are produced, and therefore the stratosphere begins earlier.
The word "stratospere" or "stratospheric" is often used as euphemism for "really high up". Compared to all divisions forEarth's atmosphere - troposphere, stratosphere, mesosphere, thermosphere and exosphere, ascending height - the stratosphere is not really all on Earth, but it is that it is that it is that it is in every typical weather tropopause, dominated by turbulence. Diffusion is therefore much faster than vertical diffusion. cruise phase of flight.
The lower stratosphade is the maximum possible altitude in which the glider can fly, because the gliders rely on thermal clouds that rise from the ground and end on the base of the stratosphere. However, these limits can be interrupted by using the ridge lift, an atmospheric thermal phenomenon, which occurs only around the edges of the mountain belts.
The first artificial object to achieve the stratosphere was a shell fired by a Parisian pistol, 20 meters (67 feet) supergun built by the Germans during the First World War. Its purpose was to shoot at Paris ofGerman border. This weapon could fire 120 kg of shell with 7 kg (15 lb) explosives for 131 km (81 million) and an altitude of 40 km (25 million). Today, military fighter aircraft and bombers regularly float with low to middle stratosphere.