Acrobatics
Acrobatics goes back to the time of the ancient Greeks. The word "acrobat" itself actually originated from the Greek language. The sport grew in popularity in the eighteenth century in Europe, especially with the popularity of the circus. Acrobatics is a demonstration involving great agility and complexity. Acrobatics is now seen in many other athletic events other than the circus, where it began. Some of the well-known sports that involve acrobatics are gymnastics, ice-skating, roller-skating, and diving.
Most acrobats that are seen in the circus have gone through extensive training programs that have lasted for several years. Even after the initial training, they are required to keep up their training everyday in order to maintain their current difficulty level and increase their level. Many acrobats in the circus are former competitive gymnasts. The acrobats have to have a high level of flexibility, strength, and knowledge of their body relative to the ground. One of the main physics concepts that is taught to the acrobats is the ability for them to find their center of gravity and be able to do so quickly. If they are unable to find their center, they will not be able to hold their current position, either in a handstand or in a pyramid.
The main technique required to become an acrobat is having the ability to know where your center of gravity is at all times. Many know where it is, but the difficult part is actually being able to maintain your stability while upside down or in the air. The acrobat has to be able to equate the sum of the torque on each individual part to the torque at the center of gravity. The upward force of the support, n, has to equal the downward force of the acrobat or acrobats weight, w. The sum of these forces must be equal to zero to be in an equilibrium system. If these two forces are equal to zero, then the acrobat is balanced in her position, or the pyramid formed by many acrobats is in balance.
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