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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 ...
Stroboscopic effect is one of the particular temporal light artefacts. In common lighting applications, the stroboscopic effect is an unwanted effect which may become visible if a person is looking at a moving or rotating object which is illuminated by a time-modulated light source.
A roller coaster inversion is a roller coaster element in which the track turns riders upside-down and then returns them to an upright position. Early forms of inversions were circular in nature and date back to 1848 on the Centrifugal railway in Paris.
One of the original public stunts done on a motorcycle was riding the Globe of Death. In this stunt, one or more riders enter a steel banded sphere through a trap door and begin circling. The centripetal force of accelerating along the curve allows the rider to eventually circle on any plane inside the sphere, including sideways and upside-down.
The vertical loop on Full Throttle is one of the world's tallest and largest at 160 feet (49 m) A vertical loop is one of the earliest and most common roller coaster inversions in existence. It is a continuous, upward-sloping section of track that eventually completes a 360-degree turn, inverting riders halfway into the element.
Footage captures the moment fairgoers in Florida were stuck upside-down on a Ferris wheel ride that malfunctioned. The attraction, which features enclosed carriages that swing and flip, slowed ...
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.
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