What is it? Parachute – A device used to slow the decent of an object by creating drag, causing the falling object to slow down.
Air Resistance Which one do you think will fall faster?
THE PEBBLE The pebble will plunge instantly while the feather will float down slowly. When an object falls through the air it basically makes a path by pushing aside the atoms and molecules in the air.The stone has heavy mass and small surface area. The feather has a small mass and large surface area creating more air resistance LIKE A PARACHUTE!
Early Parachute Leonardo Da Vinci “If a man have a tentinvented the parachute. made of linens of which the apertures (openings) have all been stopped up, and it be 12 braccia (about 12 feet) across and 12 in depth, he will be able to throw himself down from any great height without suffering any injury”
500 hundred years later… Adrian Nichols built a prototype based on Da Vinci’s idea and tested it in 2000.“It took one of the greatest minds who ever lived to design it, but it took 500years to find a man with a brain small enough to South Africa actually go and fly it” Strapped into a harness attached by 4 thick ropes to a 70ft square frame – Adrian Nichols with a pyramid shaped canvas top.
Parachutes Today • More safety features • Made out of light, strong cloth, usually nylon. • Mostly use ripcord deployment systemParachutes are used for safety reasonson aircraft, in the military, to slow down planes after landing, and for recreational activities; skydiving & parasailing.