IV. A contrivance to avoid the irregularities in a clocks motion, occasion'd by the action of heat and cold upon the rod of the pendulum

@article{GrahamIVAC,
  title={IV. A contrivance to avoid the irregularities in a clocks motion, occasion'd by the action of heat and cold upon the rod of the pendulum},
  author={George Graham},
  journal={Philosophical Transactions of the Royal Society of London},
  volume={34},
  pages={40 - 44}
}
  • George Graham
  • Physics, Education
  • Philosophical Transactions of the Royal Society of London
Whereas several, who have been curious in measuring of time, have taken notice, that the vibrations of a pendulum are slower in summer than in winter; and have very justly supposed this alteration has proceeded from a change of length in the pendulum itself, by the influences of heat and cold upon it, in the different seasons of the year 

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