In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body.
on futuristic putters: Although there is a standard length for conventional putters (men's are 35 inches - 90cm, and women's are 33-34 inches - 84-86cm), don't be afraid of altering the length of your putter if you feel uncomfortable with it. Some putters are light and others are heavier.
The dirty little secret is: Many many times, it's not the puttee -- it's the putter. What's Stock. Putters in golf shops all look the same length, and nearly the same lie. So-called standard putters are 35 inches long with a lie of 71 degrees. Many manufacturers typically offer lengths from 33 to 37 inches with lies varying from 4 degrees more upright than 71 degrees to 4 degrees flatter.