From to [ Shift -1 day | Shift +1 day ] Zoom menu

Plot and as with

Comments (see all | edit)

26 Jan 2018 [17:35]
end of experiment. [link] I reckon the shift of weight was about 0.25kg by 40mm - that's the same as 100kg by 0.1mm The pendulum bob is 100kg and the length is about 2m so the apparent tilt change is about 0.05mrad Look at x-y plot here of twist vs tilt (nb tilt volts is 1mrad/volt). [link] So it looks as if the 0.05mrad is in the right ballpark.
26 Jan 2018 [15:00]
experiment to see if shifting 20000ms worth of regulation weights makes any difference to twist. Looks promising

Download data

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