A unit of force in the centimeter-gram-second (CGS) system, equal to the force needed to accelerate one gram at one centimeter per second squared.
Abbreviation and shortening of 'dyne,' which comes from Greek 'dynamis' (power, force). The CGS system was developed in the 19th century and named this unit after ancient Greek philosophical concepts of dynamic force.
The 'dyn' unit is tiny—one dyn equals about the weight of a single grain of rice—yet it's crucial in physics. Scientists still use it in specialized fields, making it a ghost unit that haunts modern equations even though we've mostly switched to Newtons!
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