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  2. Lottery wheeling - Wikipedia

    en.wikipedia.org/wiki/Lottery_wheeling

    A lottery wheeling system acts as a single ticket in terms of a particular guarantee, but it allows playing with a set of numbers of size larger than the size of the set of numbers drawn in the lottery. For instance, a single ticket in a pick 6 lottery guarantees a 4-win if four of the player's numbers are drawn.

  3. Geneva drive - Wikipedia

    en.wikipedia.org/wiki/Geneva_drive

    The Geneva drive or Geneva mechanism is a gear mechanism that translates a continuous rotation movement into intermittent rotary motion. The rotating drive wheel is usually equipped with a pin that reaches into a slot located in the other wheel ( driven wheel) that advances it by one step at a time. The drive wheel also has an elevated circular ...

  4. Wagon-wheel effect - Wikipedia

    en.wikipedia.org/wiki/Wagon-wheel_effect

    Video of a spinning, patterned paper disc. At a certain speed the sets of spokes appear to slow and rotate in opposite directions. 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 ...

  5. Wheel theory - Wikipedia

    en.wikipedia.org/wiki/Wheel_theory

    Wheel theory. A diagram of a wheel, as the real projective line with a point at nullity (denoted by ⊥). A wheel is a type of algebra (in the sense of universal algebra) where division is always defined. In particular, division by zero is meaningful. The real numbers can be extended to a wheel, as can any commutative ring .

  6. Crookes radiometer - Wikipedia

    en.wikipedia.org/wiki/Crookes_radiometer

    Crookes radiometer. The Crookes radiometer (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation ...

  7. Prince William Used to 'Whisk' Kate Middleton Off for Hotel ...

    www.aol.com/prince-william-used-whisk-kate...

    When the couple wanted to get away from it all, "he’d often whisk Catherine off to Highgrove or Sandringham or to a cottage on the Balmoral estate,” Jobson wrote in the new book, out Aug. 6 ...

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