Bicycle wheel some other fixed point may be used as a reference mark, however this is less accurate. At one end of each spoke is a specialized nut, called a nipple, which is used to connect the spoke to the rim and adjust the tension in the spoke. The nipple is usually located at the rim end of the spoke but on some wheels is at the hub end to move its weight closer to the axis of the wheel, reducing the moment of inertia. Until recently there were only two types of nipples: brass and aluminum (often referred to as "alloy").
Wonder Wheel Wonder Wheel Wonder Wheel is a tall eccentric Ferris wheel located at Deno's Wonder Wheel Amusement Park, in the Coney Island neighborhood of Brooklyn, New York City, US. Eccentric wheels differ from conventional Ferris wheels in that some of the passenger cars are not fixed directly to the rim of the wheel, but instead slide on rails between the hub and the rim as the wheel rotates. The Wonder Wheel is an official New York City Landmark. "The Wonder Wheel" was designed by Charles Herman as an improvement on G.W.G. Ferris' giant wheel. Built for Herman J. Garms, Sr. between