By Prashant, Ramna, Sprite, Nimra, Jaspreet My Perfect Parachute By Prashant, Ramna, Sprite, Nimra, Jaspreet

HISTORY The oldest parachute design appears in an anonymous manuscript from 1470s Renaissance Italy,showing a free hanging man clutching a cross bar frame attached to a conical canopy. More sophisticated parachute was sketched by the polymath Leonardo da Vinci. The scale of the parachute is more favorably proportion to the weight of the jumper.

Fausto Veranzio modified da Vinci’s parachute sketch Fausto Veranzio modified da Vinci’s parachute sketch. Replaced the canopy with a sail-like piece of cloth. Titled “Flying Man” or “the Man with an Angel’s Blessing”.

BACKGROUND The performance of a parachute will be affected by different variables.

Aim Our aim is to design a parachute that will fall slower.

Size of canopy Length of string Number of strings Wind directions VARIABLES Size of canopy Length of string Number of strings Wind directions Weight of load Shape of parachute Material of the parachute Ohk na

Our changed variables For our experiment we chose to change the size of the canopies. We made one canopy with the size of height :25cm and width :25cm and another parachute with the height :10cm and width :25cm

Procedure We made the parachute of two different sizes We did the dropping from the fifth floor to the third floor podium.

1 2 3 Results Small Large Average 2.56 seconds 3.20 seconds Test Small Large 1 2.56 seconds 3.20 seconds 2 2.0 seconds 2.38 seconds 3 1.78 seconds 4.40 seconds Average 2.11 3.33

Conclusion So after doing the experiments we concluded that the larger parachute falls slower than the smaller parachute.

PROBLEM Towards the end of the experiment , it started to rain. The wind was too strong and the parachutes is not at the direction that we want. The parachutes get wet because of the raining so it cannot control the direction. The timing of the timer could also affect the result of the parachute. Its possible that we might start the timer too early or too late

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