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27 Jul 2012 [18:00]
Curious that the clock shifted to its new fast-going regime at the time of winding on Thursday. Nothing was touched, other than to open the cabinet and wind. I am increasingly convinced that changing air currents up the pendulum chute are the cause. What I need now is a means of measuring micro-air-flow.

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Interval between data points: seconds [either 3 seconds (weather data is duplicated) or multiples of 60 seconds (all data is averaged)].

[Raw data: Clock | Weather]

Contact:, Trinity College, Cambridge