Use nothing
Without question, its The Annual Design Awards.
The 'best' length for a parachute string depends on what the parachute is for and the rest of the design. If a parachute's strings are too short, the whole parachute could collapse. If the parachute's strings are too long, there may be some wobbling and bungeeing about, more twisting of the strings, etc. Parachutes for heavy things (like spacecraft) tend to have longer strings than parachutes for people, since they're less affected by this instability.
A raw egg (ApexLearning)
The best shape for a parachute is a circle. This is because the circle will have a larger area that will cause more drag to slow the parachute.
Bail out, and parachute down.
the human brain works best when it is used. just like a parachute.
square or rectangle
There have been a number of advances in parachutes in past decades. High performance canopies nowadays are of the square, ram-air design (though the actual shape of the canopy is actually rectangular).
Modern parachutes are made from nylon.
id say from my experience an oval
a dome or octagon
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