Assertion: clock's rate | /r/CapableOf | vary with unavoidable variations
Facets:
value: in the driving force
type: OTHER
Source sentences:
text: In his 1673 analysis of pendulums, Horologium Oscillatorium, Huygens showed that wide swings made the pendulum inaccurate, causing its period, and thus the rate of the clock, to vary with unavoidable variations in the driving force provided by the movement.