contact wheel
21Magnet Space Wheel — The Magnet Space Wheel is a toy that propels a plastic wheel along both sides of a metal track with magnets built into the wheel. As the track is tilted up and down, the wheel rolls the length of the track, top and bottom, and then again on the… …
22Barlow's Wheel — is the name given to an early demonstration of a homopolar motor, designed and built by English mathematician and physicist, Peter Barlow in 1822. An electric current passes through the hub of the wheel to a mercury contact on the rim; this is… …
23center of tire contact — the intersection of the wheel plane and the vertical projection of the spin axis of the wheel onto the road plane. Note: the center of tire contact may not be the geometric center of the tire contact area due to distortion of the tire produced by …
24Click Wheel — La Click Wheel des iPods La click wheel ou « Molette cliquable » est un élément de navigation des baladeurs numériques iPods d’Apple qui combine technologie tactile et boutons traditionnels. Elle permet aux utilisateurs de parcourir le… …
25Click wheel — La Click Wheel des iPods La click wheel ou « Molette cliquable » est un élément de navigation des baladeurs numériques iPods d’Apple qui combine technologie tactile et boutons traditionnels. Elle permet aux utilisateurs de parcourir le… …
26One-wheel manual — Manual Un manual, ou wheeling, est un trick de skateboard. Au lieu de rouler avec les quatre roues de son skate touchant le sol, le skateur effectuant un manual se contente de rouler sur les deux roues arrières. Cette position est atteinte en… …
27click wheel — La Click Wheel des iPods La Click wheel ou « Molette cliquable » est un élément de navigation des baladeurs numériques iPods d’Apple qui combine technique tactile et boutons traditionnels. Elle permet aux utilisateurs de parcourir le… …
28friction wheel — noun or friction pulley : a wheel operating by friction (as in a friction gearing) * * * friction wheel, a wheel operating by friction, used to transmit the motion of one wheel to another by simple contact …
29Cam wheel — Cam Cam (k[a^]m), n. [Dan. kam comb, ridge; or cf. W., Gael., and Ir., cam bent. See 1st {Comb}.] 1. (Med.) (a) A turning or sliding piece which, by the shape of its periphery or face, or a groove in its surface, imparts variable or intermittent… …
30arc of contact — the portion of a circular surface that is in contact with another surface (as that between a belt and a pulley); specifically : the arc on a toothed gear between the point where the teeth first make contact with another gear wheel and the point… …
