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typeracer

Pit Stop
Racer Preston (masterpreston0321)
Race Number 2
Date Thu, 31 Jan 2019 2:15:02
Speed 50 WPM Try to beat?
Accuracy 96.8%
Rank 3rd place (out of 3)

Text typed:

The second (s) is the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
— (book) by Theodore Wildi (see stats)

Typing Review: