Wire
Latest change
2019-12-15
I use piano wire of 0.75 mm for the pendulum at home,
and 0.925 mm (gauge 16) for the pendulum in the chapel.
As piano wire has a good remembering of being rolled up during
shelf
time there may be an effect on the pendulum's behaviour. I intend
to
investigate that by rotating the top clamp and see if there is any
difference in the pattern of CW- and CCW ellipse. That
investigation
will take many days, perhaps weeks, and is planned for winter
2017. (dec 2019: still not done)