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Platt's roving frame, c. 1858. Cotton-spinning machinery is machines which process (or spin) prepared cotton roving into workable yarn or thread. [1] Such machinery can be dated back centuries. During the 18th and 19th centuries, as part of the Industrial Revolution cotton-spinning machinery was developed to bring mass production to the cotton ...
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 ...
The spinning drive wheel turns the flyer and, via friction with the flyer shaft, the bobbin. A short tension band, or brake band, adds drag to the bobbin such that when the spinner loosens their tension on the newly spun yarn, the bobbin and flyer spin relative to each other and the yarn is wound onto the bobbin.
Lottery Wheels were introduced in the 1970s and have become a popular method of playing. Several "spin off" methods have since become popular, with mixed acceptance. From a mathematical standpoint 'wheeling' has no impact on the expected value of any given ticket. However, playing a lottery wheel impact the win distribution over time.
The spinner on automobile wheels historically refers to knock-off hub nuts or center caps. They may be the actual, or intended to simulate, the design used on antique vehicles or vintage sports cars. A "spinner wheel" in contemporary usage is a type of hubcap or inner wheel ornament, that spins independently inside of a wheel itself when the ...
Wheelspin. A wheelspin occurs when the force delivered to the tire tread exceeds that of available tread-to-surface friction and one or more tires lose traction. This leads the wheels to "spin" and causes the driver to lose control over the tires that no longer have grip on the road surface. Wheelspin can also be done intentionally such as in ...
Twister is a game of physical skill produced by Milton Bradley Company and Winning Moves Games USA. It is played on a large plastic mat that is spread on the floor or ground. The mat has four rows of six large colored circles on it with a different color in each row: red, yellow, green and blue. A spinner tells players where they have to place ...
Rota Fortunae. From an edition of Boccaccio's De Casibus Virorum Illustrium showing Lady Fortune spinning her wheel. In medieval and ancient philosophy, the Wheel of Fortune or Rota Fortunae is a symbol of the capricious nature of Fate. The wheel belongs to the goddess Fortuna ( Greek equivalent: Tyche) who spins it at random, changing the ...