ZEPTOSECOND

zeptosecond (plural zeptoseconds)

A unit of time equal to 0.000 000 000 000 000 000 001 seconds, that is, 10⁻²¹ second, and with symbol zs.

Source: Wiktionary

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5 February 2025

(noun) activity involved in maintaining something in good working order; “he wrote the manual on car care”

Coffee Trivia

In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.