What is Chevreul’s Pendulum?

We’re resurrecting an oldie, but a goodie, this week. ¬†What is Chevreul’s pendulum?

To learn more about the life of Michel-Eugene Chevreul, click here.

If you don’t have a Chevreul’s pendulum, but would like to purchase one, email paul@paulramsay.com. The online store doesn’t exist anymore, but Paul still has the materials to make them and is willing to ship you one for $8.