párakisülésmér

The párakisülésmér, commonly known in English as a **parachute**, is a device designed to slow the motion of an object through an atmosphere by creating drag, or in the case of an astronaut or pilot, by directly applying a decelerating force to a person as they descend. Parachutes are essential for safe landings in various contexts, including military operations, aviation, space exploration, and recreational activities such as skydiving.

The basic principle behind a parachute involves increasing air resistance to reduce the rate of descent. This is achieved through a canopy—a flat or slightly curved surface—that spreads out when deployed. When the canopy is opened, it catches the air, creating drag that slows the descent. Modern parachutes are typically made from lightweight, durable materials like nylon or silk, reinforced with webbing and suspension lines.

Parachutes have evolved significantly over time. Early designs, such as those used by Leonardo da Vinci in conceptual sketches, were rudimentary. The first successful parachute jump was made by André-Jacques Garnerin in 1797, using a silk canopy. Today, parachutes are highly engineered, often incorporating automated deployment systems, reserve parachutes, and advanced materials for reliability and safety.

In aviation, parachutes are used in emergency situations where ejection from an aircraft is necessary. Military applications include troop drops and special operations where precise landings are required. For recreational skydiving, parachutes allow participants to experience free-fall before deploying the chute for a controlled descent. In space exploration, parachutes assist in the safe landing of crewed and uncrewed spacecraft upon re-entry into Earth’s atmosphere.

Proper training and maintenance are critical for safe parachute use. Users must undergo rigorous instruction in deployment techniques, emergency procedures, and equipment checks. Regular inspections ensure that parachutes remain functional and reliable for their intended purpose.