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  2. Wagon-wheel effect - Wikipedia

    en.wikipedia.org/wiki/Wagon-wheel_effect

    Imagine that the true rotation of a four-spoke wheel is clockwise. [3] The first instance of visibility of the wheel may occur when one spoke is at 12 o'clock. If by the time the next instance of visibility occurs, the spoke previously at 9 o'clock has moved into the 12-o'clock position, then a viewer will perceive the wheel to be stationary.

  3. Persistence of vision - Wikipedia

    en.wikipedia.org/wiki/Persistence_of_vision

    Impressions of several natural phenomena and the principles of some optical toys have been attributed to persistence of vision. In 1768, Patrick D'Arcy recognised the effect in "the luminous ring that we see by turning a torch quickly, the fire wheels in the fireworks, the flattened spindle shape we see in a vibrating cord, the continuous circle we see in a cogwheel that turns with speed". [8]

  4. Koenigsegg Regera - Wikipedia

    en.wikipedia.org/wiki/Koenigsegg_Regera

    Koenigsegg states it is capable of accelerating to 100 km/h (62 mph) from a stand still in 2.8 seconds, 200 km/h (124 mph) in 6.6 seconds, 300 km/h (186 mph) in 10.9 seconds and attaining a speed of 400 km/h (249 mph) in 20 seconds. Koenigsegg also claims that the acceleration from 150–250 km/h (93–155 mph) requires 3.9 seconds. [1]

  5. Stroboscopic effect - Wikipedia

    en.wikipedia.org/wiki/Stroboscopic_effect

    Simon Stampfer, who coined the term in his 1833 patent application for his stroboscopische Scheiben (better known as the "phenakistiscope"), explained how the illusion of motion occurs when during unnoticed regular and very short interruptions of light, one figure gets replaced by a similar figure in a slightly different position. Any series of ...

  6. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    The size–weight illusion is also known as the Charpentier illusion or Charpentier–Koseleff illusion. Stepping feet illusion: The stepping feet illusion is influenced by the contrast between moving objects and their background. Stroboscopic effect: Swept-plane display: Ternus illusion: The Ternus illusion (1926/1938) is based upon apparent ...

  7. United States Rubber Company - Wikipedia

    en.wikipedia.org/wiki/United_States_Rubber_Company

    The company formerly known as the United States Rubber Company, now Uniroyal, is an American manufacturer of tires and other synthetic rubber-related products, as well as variety of items for military use, such as ammunition, explosives, chemical weapons and operations and maintenance activities (O&MA) at the government-owned contractor-operated facilities. [1]

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