Image description
At the top, with the texture of embossed dots we can see the part of the canvas called the veil. The three embossed lines that descend from the parachute to the man are the wires that keep him connected to the canvas. At the bottom we can see a schematic man hanging from a parachute.
Historical data
The parachute represents a solid, but light canvas, designed like an umbrella, which, comprising under its dome a large volume of air, dampens the fall of bodies. Paradoxically, but the age of the parachute exceeds by a few centuries that of the aircraft, so before man can rise in the air. The idea of creating an umbrella that would allow man to descend from very high heights is very old, being present in various legends and stories, in different peoples. Thus, in an ancient Chinese manuscript it is said that Emperor Sun, who lived between 2258-2208 BC, managed to escape from a tall tower, where he was held captive, by jumping with the help of two large umbrellas. and landing well. [Bibliography 1].
Round parachutes, which only slow down the movement through the air, are used mainly by the army, both for landing troops and military paratroopers, as well as for placing loads and resources. They have a round, dome-like veil made of a single layer of material. These types of parachutes are rarely used by civilian paratroopers. The first round parachutes were simple and circular in shape, but they were quite unstable. Most round parachutes today tend to be conical or parabolic. Some round parachutes can be maneuvered, but not to the same extent as wing parachutes. In the image on the right you can see a maneuverable round parachute. You can see small rectangular cuts on the veil, which allow the air to come out through the back, ensuring a horizontal movement. This allows parachutists to direct the parachute and position it facing the wind, in order to reduce the speed of advancing on landing. The way a parachute lands is influenced by several factors: the weight of the load, the force and direction of the wind, etc. [Bibliography 2]
Parachutes are used for civilian purposes for recreation or as a means of security and for military purposes by combatants for launching personnel, cargo or to reduce the speed of aircraft.
Bibliography
https://ro.wikipedia.org/wiki/Para%C8%99ut%C4%83
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https://tactileimages.org/wp-content/uploads/2019/09/parasuta.png
