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.
A fully-grown male English setter stands 25 to 27 inches tall and weighs 65 to 80 pounds (29 to 36 kilograms). Females stand 23 to 25 inches tall and weigh between 45 and 75 pounds (20 to 25 kilograms). The average life span of an English setter is 12 years, although some have been known to live well into their teens.