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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 skateboarding tricks - Wikipedia

    en.wikipedia.org/wiki/Freestyle_skateboarding_tricks

    A G-Turn is a Nose Manual, but without facing the riding direction. The rider increases speed, then places the front foot on the nose while keeping the back foot over the back wheels. While riding, the board tends to turn frontside or backside, ending with a spin. Variations: One-Wheeled, Backward, Hang Ten (two feet on the nose)

  4. Flip trick - Wikipedia

    en.wikipedia.org/wiki/Flip_trick

    A varial flip is a type of skateboarding trick in which the skateboard rotates around its vertical axis, or its vertical axis and its horizontal axis simultaneously. The first flip trick, called a kickflip but originally known as a "magic flip", was invented by professional skateboarder Rodney Mullen.

  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. Glossary of dance moves - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_dance_moves

    A basic figure is the very basic step that defines the character of a dance. Often it is called just thus: "basic movement", "basic step" or the like. For some dances it is sufficient to know the basic step performed in different handhold [broken anchor] s and dance positions [broken anchor] to enjoy it socially.

  7. Bicycle and motorcycle dynamics - Wikipedia

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

    While performing a track stand, the rider can keep the line between the two contact patches under the combined center of mass by steering the front wheel to one side or the other and then moving forward and backward slightly to move the front contact patch from side to side as necessary. Forward motion can be generated simply by pedaling.

  8. Cardinals, Panthers alike spin their wheels in Arizona victory

    www.aol.com/sports/cardinals-panthers-alike-spin...

    Kyler Murray led the Cardinals past the Panthers in an ugly 26-16 victory.

  9. Figure skating spins - Wikipedia

    en.wikipedia.org/wiki/Figure_skating_spins

    The flying spin and any spin that only has one position must have six revolutions; spin combinations must have 10 revolutions. Required revolutions are counted from when the skater enters the spin until they exit out of it, except for flying spins and the spins in which the final wind-up is in one position. [48]