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The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel ...
Water wheel. A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets arranged on the outside rim forming the driving car.
Arilus cristatus. Arilus cristatus, also known as the North American wheel bug or simply wheel bug, [ 1] is a species of large assassin bug in the family Reduviidae and the only species of wheel bug found in the United States. [ 2][ 3] It is one of the largest terrestrial true bugs in North America, reaching up to 1.5 inches (38 mm) in length ...
Similar wheel symbols were used as a solar symbol by the Ancient Egyptians. [32] Some Buddha statues also depict the related Dharmachakra Mudrā, a hand sign depicting the turning of the Dharma wheel. A very similar wheel symbol also appears in the flag of the Romani people, hinting to their nomadic history.
A prayer wheel, or mani wheel, is a cylindrical wheel ( Tibetan: འཁོར་ལོ།, Wylie: 'khor lo, Oirat: кюрдэ) for Buddhist recitation. The wheel is installed on a spindle made from metal, wood, stone, leather, or coarse cotton. Prayer wheels are common in Tibet and areas where Tibetan culture is predominant. Traditionally, a ...
List of Ferris wheels. The original Ferris Wheel with a height of 80.4 metres (264 ft) next to the Ain Dubai, the current tallest Ferris wheel, with a height of 250 metres (820 ft). The Ain Dubai can carry 1750 people. The gondolas are each about twice the size of a city bus, and can be reserved for private parties.
A wheelwright is a craftsman who builds or repairs wooden wheels. The word is the combination of "wheel" and the word "wright" (which comes from the Old English word " wryhta ", meaning a worker or shaper of wood) as in shipwright and arkwright. [1] This occupational name became the English surname Wright.
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.