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A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.
Ratcheting is a significant effect to be considered to check permanent deformation in systems which undergoes a cyclic loading. Common examples of such repetitive stresses include sea waves, road traffic, and earthquakes. [8]
This list contains Germanic elements of the English language which have a close corresponding Latinate form. The correspondence is semantic—in most cases these words are not cognates, but in some cases they are doublets, i.e., ultimately derived from the same root, generally Proto-Indo-European, as in cow and beef, both ultimately from PIE *gʷōus.
Ratchet (device), a mechanical device that allows movement in only one direction; Ratchet, metonymic name for a socket wrench incorporating a ratcheting device; Ratchet (instrument), a musical instrument and a warning device
Ratchet is a slang term in American hip hop culture that, in its original sense, [1] was a derogatory term used to refer to an uncouth woman, and may be a Louisianan dialect form of the word "wretched".
This is a collection of temperature conversion formulas and comparisons among eight different temperature scales, several of which have long been obsolete.. Temperatures on scales that either do not share a numeric zero or are nonlinearly related cannot correctly be mathematically equated (related using the symbol =), and thus temperatures on different scales are more correctly described as ...
Root Meaning in English Origin language Etymology (root origin) English examples pac-peace: Latin: pax, pacis: appease, Pacific, pacify, pay pach-[1]thick: Greek: παχύς (pakhús), πάχος, πάχεος (pákhos, pákheos)
Most scientists measure temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is the Celsius scale offset so that its null point is 0 K = −273.15 °C, or absolute zero. Many engineering fields in the US, notably high-tech and US federal specifications (civil and military), also use the Kelvin and ...