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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 ...
It accounts for the "wagon-wheel effect", so-called because in video, spoked wheels (such as on horse-drawn wagons) sometimes appear to be turning backwards. A strobe fountain, a stream of water droplets falling at regular intervals lit with a strobe light , is an example of the stroboscopic effect being applied to a cyclic motion that is not ...
The stroboscopic effect makes each seem to be a single animated object. By allowing the rotation speed to be slightly out of synchronization with the strobe, the animated objects can be made to appear to also move slowly forwards or backwards, according to how much faster or slower each rotation is than the corresponding series of strobe flashes.
Classic bootleg turns can be performed only on cars with a manual transmission and are most easily accomplished with a rear-wheel-drive car, as the spinning back wheels aid in the turn. This is because the maneuver is essentially a controlled fishtail-like spin-out. Vehicles with an automatic transmission can be modified to make a bootleg turn ...
The London Eye has marked the end of British Summer Time and the clocks turning back by taking a rare backwards spin.. The landmark usually runs clockwise, but for just the second time since the ...
The narrowest J-turn was performed in a Renault Twingo, between barriers set 3.78 metres (12.4 ft) apart.The diagonal length of the car, 3.70 metres (12.1 ft), meant stunt driver Terry Grant had a gap of 4 centimetres (1.6 in) on each side.
Sign any contracts, make any big purchases, or take action on big life decisions. Along with communication, Mercury is the planet that rules commerce, meaning a lot can go wrong in the business ...
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.