What Is Smaller Than a Nanosecond?
Last Updated Mar 31, 2020 7:58:31 AM ET
A nanosecond is one-billionth of a second, but time can be measured by increments far shorter. A picosecond is three orders of magnitude shorter, one-trillionth of a second, and a femtosecond is shorter still at one-quadrillionth of a second.
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