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  2. Wagon-wheel effect - Wikipedia

    en.wikipedia.org/wiki/Wagon-wheel_effect

    The wagon-wheel effect (alternatively called stagecoach-wheel effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly than the true rotation, it can appear stationary, or it can appear to rotate in the opposite direction from the true rotation ...

  3. Freestyle fixed gear - Wikipedia

    en.wikipedia.org/wiki/Freestyle_fixed_gear

    Hop up and down on the back wheel. Johnathan Ball [4] Pole Dance Doing a wheelie, take a hand off to grab an obstacle to go in a circle around. Johnathan Ball [4] Keo Spin From rolling backward, taking off one arm to get momentum into a back wheel spin. Named after Keo Curry. Johnathan Ball [4] Fish and Chips aka Fishy Whip.

  4. Bicycle and motorcycle dynamics - Wikipedia

    en.wikipedia.org/wiki/Bicycle_and_motorcycle...

    For a sample motorcycle moving at 22 m/s (50 mph) that has a front wheel with a moment of inertia of 0.6 kg·m 2, turning the front wheel one degree in half a second generates a roll moment of 3.5 N·m. In comparison, the lateral force on the front tire as it tracks out from under the motorcycle reaches a maximum of 50 N.

  5. Propeller walk - Wikipedia

    en.wikipedia.org/wiki/Propeller_walk

    Propeller walk (also known as propeller effect, wheeling effect, paddle wheel effect, asymmetric thrust, asymmetric blade effect, transverse thrust, prop walk) is the term for a propeller's tendency to rotate about a vertical axis (also known as yaw motion). The rotation is in addition to the forward or backward acceleration.

  6. Wheelspin - Wikipedia

    en.wikipedia.org/wiki/Wheelspin

    Wheels can also lose traction when surface conditions reduce available traction such as on snow and ice. As an open differential delivers only enough torque to cause the "weakest" wheel to spin, if one drive wheel is stationary on a low traction surface (mud, ice, etc.), the deliverable torque is limited to the traction available on it.

  7. Short draw - Wikipedia

    en.wikipedia.org/wiki/Short_draw

    In backwards short draw, the hand closest to the wheel is the passive hand. It pinches new fibers, but these are drawn out by the other hand, the one farther from the wheel, as it moves backwards. Once the fibers are all drawn out, the active hand is moved forward, and twist is allowed into the new yarn as it passes through the passive hand.

  8. Rotating locomotion in living systems - Wikipedia

    en.wikipedia.org/wiki/Rotating_locomotion_in...

    A wheeled buffalo figurine—probably a children's toy—from Magna Graecia in archaic Greece [1]. Several organisms are capable of rolling locomotion. However, true wheels and propellers—despite their utility in human vehicles—do not play a significant role in the movement of living things (with the exception of the corkscrew-like flagella of many prokaryotes).

  9. Reciprocating motion - Wikipedia

    en.wikipedia.org/wiki/Reciprocating_motion

    The piston is on the left, and the crank is mounted on the flywheel axle on the right Machine demonstrating the conversion of rotary motion to reciprocating motion using gears. The bottom pair of gears drives the mechanism. Reciprocating motion, also called reciprocation, is a repetitive up-and-down or back-and-forth linear motion.