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Wacky WorldScience
In physics and quantum chemistry, American physical chemist Gilbert N. Lewis (1920s) formally defined a “jiffy” as the duration required for light to travel a distance of one centimeter in a vacuum—approximately 33.3 picoseconds (3.33 × 10⁻¹¹ seconds). In computer engineering, a jiffy designates the time interval between consecutive scheduler timer interrupt ticks in the Linux operating system kernel, typically 1 to 10 milliseconds (100 Hz to 1000 Hz).
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