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06 Dec 2020 [12:03]
re-aligned the prism for the twist sensor - I think the laser was reflecting off the side of the square aluminium tube making the spot flare out and indistinct.
06 Dec 2020 [12:03]
winding with Noah Weiler and Alessa Weiler - note that the clock is running ahead because of sticking of the pendulum?

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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