What is special in my pendulums. Latest change 2017-08-31
What makes my pendulums different from most others.
Where in most (museum)
pendulums all technique and details of the construction are hidden
from the public, I plan to show as much of the techniques
involved. Either directely if you stand before it or on displays
surroundig the setup, or on this accompanying website.
Contrary to this I must admit and regret that the pendulums at my
home and in the Vrijland Chapel can only be visited on
My pendulums are equiped with quite some electronics to control
and monitor their behaviour.
Times of passing the center coil and the rimcoil will be logged.
The movements of the pendulums are measured some 10 times per
second in both North-South and East-West direction. From this the
precession, the amplitude and the amount of ellipse are
Log files of this will become available.
At a later stage of the project all the timing will be related to
extremely precise clock signals from the Time Transmitter DCF77 in
All constructional details of my pendulums will be published on