All pendulums swing. They wouldn't be pendulums if they didn't.
no pendulums are not used for evil or tp provoke evil spirits pendulums are fastinating but are used for questions or any other way you can think of .
The length. Long pendulums are slow, short pendulums are fast.
That one.
pendulums
Pendulums
because of same length
100 cms for the second's pendulum
the north pole
You can measure the phase difference between 2 pendulums by measuring the distance between the two. The amount it comes out to will be the difference.
It would also depend on how many pendulums you had, if the regular, 4, the same would happen to the other side.
pulleys, levers, pendulums