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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, ...
Yitzhak Shamir spinning a gragger Knocking out Haman's name from stones 18th century Megillah reading; children with graggers in the back. A grager (Yiddish: גראַגער, 'rattler'), also gragger, grogger or gregger, [1] is a noisemaking device, most commonly a ratchet, used to make noise by the congregation when the name of Haman is read out during the recitation of the Megillah in the ...
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
Illustration of chromosome crossover during genetic recombination. In evolutionary genetics, Muller's ratchet (named after Hermann Joseph Muller, by analogy with a ratchet effect) is a process which, in the absence of recombination (especially in an asexual population), results in an accumulation of irreversible deleterious mutations.
Muller's ratchet where mutations in a species will tend to accumulate. Muphry's law: "If you write anything criticizing, editing, or proofreading, there will be a fault of some kind in what you have written." The name is a deliberate misspelling of "Murphy's law".
A ratchet or rattle, more specifically, cog rattle [1] is a musical instrument of the percussion family and a warning/signaling device. It operates on the principle of the ratchet device , using a gearwheel and a stiff board mounted on a handle, which rotates freely.
Ratchet feminism coopts the derogatory term . Other terms used to describe this concept include ratchet womanism as used by Georgia Tech professor Joycelyn Wilson or ratchet radicalism used by Rutgers professor Brittney Cooper. [2] Ratchet is an identity embraced by many millennials and Gen Z black women and girls. [3]
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.