History         Equipment   Medial Reference         Accidents      The Performance          History          Equipment      The Performance           Skydiving          History          Equipment       Aerodynamics   The Performance          Safety   Test your Knowledge

The first phase of bungee jumping is facing the edge where you are going to jump from. It is not very difficult but then comes the most terrifying scene.You are standing in front of an abyss wondering why on Earth you are doing this. Your instict of self-preservation does not allow you to pass. Usually people need someone to countdown or even push them in order to jump. 3,2,1… and the jump comes - the adrenaline has reached its highest level. Many people scream to release the tension. The professionals perform various stunts.Then everything ends and only dizziness remains. After the jump a stage called free fall takes place. The free fall continues for a couple of seconds ( depending on the heigth) and then the cord reaches its full free length. After that it stretches more depending on its elongation and the weight of the jumper.The extra length of the cord E when it stretches is calculated with the formula where m is mass of the jumper , L is the length of the cord and k is the stiffness of the cord.When a jumper with weigth m is about to jump from a certain length- the overall cord length(L+E ),the stiffness K is calculated with this formula:. The stiffer the cord ,the less it stretches. After the initial jump there are several the bounds of the cord. Then comes the take-off.Either the jumper is pulled up back to the platform or he is let down where he is put on a special air-bag platform or taken manually. And then everything has ended except for the adrenaline in your veins.