-cycle - encyclopedia article about -cycle.

-cycle is a suffix used in two contexts, transport and measurement.

Transport

The English suffix -cycle indicates a vehicle for transportation, but generally smaller than an automobile or truck. Alternatively, it is used to specify the number and arrangement of wheels in any vehicle. Typical is bicycle, a lightweight two wheel device powered by the rider, or a motorcycle, a two wheeled motor powered device substantially larger than a bicycle and which is not powered by the rider in normal operation. A unicycle is a one wheeled device, somewhat difficult to balance. A tricycle may refer to the wheel configuration of a vehicle of any size, including a prevalent aircraft landing gear configuration, or to a specific type of lightweight human powered vehicle. A quadracycle is usually a lightweight human powered or motor assisted pedaled vehicle.

(A motor assisted bicycle is called a moped. This word, like the device, being a combination of "motor" and "pedal".)

Measurement

-cycle is also an indication of frequency of periodicity, usually associated with an additional modifier indicating the time unit. Typically used in units such as xxx kilocycles (thousand cycles) per second, xxx megacycles (million cycles) per second, etc., where xxx is some number. The cycles per second is often implicit such as in "this station broadcasts at 680 kilocycles" - this is taken to mean "680 kilocycles per second" or 680,000 cycles per second.

The "cycles per second" is now usually expressed with the unit "hertz", named in honor of the pioneering physicist Heinrich Rudolf Hertz and defined as "cycles per second". Thus 88 megacycles, or correctly, 88 megacycles per second, is now expressed as 88 megahertz.

English}}}
Writing system: Latin (English variant)
Official status
Official language of: 53 countries
Regulated by: no official regulation
Language codes
ISO 639-1: en
ISO 639-2: eng
ISO 639-3: eng
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An affix is a morpheme that is attached to a base morpheme such as a root or to a stem, to form a word. Affixes may be derivational, like English -ness and pre-, or inflectional, like English plural -s and past tense -ed.
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racing bicycle is built using lightweight, shaped aluminium tubing and carbon fiber stays and forks. It sports a drop handlebar and thin tires and wheels for efficiency and aerodynamics.
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MotorCycle
(1993) BibleLand
(1994)

MotorCycle is the title of a 1993 album by rock band Daniel Amos, released on BAI Records. The album was dedicated to the memory of songwriter Mark Heard.
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electric motor converts electrical energy into mechanical energy. The reverse process, that of converting mechanical energy into electrical energy, is accomplished by a generator or dynamo.
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A unicycle is a one-wheeled human-powered vehicle. Unicycles are similar to, but less complex than, bicycles.

Construction

Unicycles are composed of a few key parts: the wheel (which includes the tire, tube, rim, spokes, hub and axle), the cranks, pedals,
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tricycle (often abbreviated to trike) is a three-wheeled vehicle.

Tricycles generally follow one of three layouts:

delta, with two wheels at the back and one at the front (the usual layout).

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undercarriage or landing gear is the structure (usually wheels) that supports an aircraft and allows it to move across the surface of the Earth when it is not flying.
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Quadricycle is a four-wheeled human-powered vehicle. It is also referred to as a quadracycle, quadcycle, quadrocycle or as a four-wheel bicycle.
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Mopeds are a class of low-powered motorized vehicles, generally two-wheeled. Moped classification is designed to allow the use of small motorised vehicles, avoiding the safety restrictions and licensing charges required of larger motorcycles.
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pedal comes from the Latin (Pes, Pedis) and relates to the foot.

A pedal is a lever activated by one's foot. Examples include:

An automobile has usually three pedals. See automobile pedal.

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FreQuency is a music video game developed by Harmonix and published by SCEI. It was released in November 2001. A sequel, titled Amplitude was released in 2003.
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Periodicity is the quality of occurring at regular intervals or periods (in time or space) and can occur in different contexts:

A clock marks time at periodic intervals.
A metronome ticks at periodic intervals of time.

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hertz (symbol: Hz) is the SI unit of frequency. Its base unit is cycle/s or s^-1 (also called inverse seconds, reciprocal seconds). In English, hertz is used as both singular and plural.
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physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena spanning all length scales: from the sub-atomic particles from which all ordinary matter is made (particle physics) to the behavior of the material Universe as a whole
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Heinrich Rudolf Hertz

Born January 22 1857
Hamburg, Germany
Died January 1 1894 (aged 38)
Bonn, Germany
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