What balance scale is made of
Scales based on an equal-armed lever.
- Balance beam — has part. An equal-armed lever.
- Balance pans — has part. For the load and weights.
- Knife-edge pivot — has part. A low-friction pivot for the beam.
- Set of brass weights — has part. Reference masses.
- Lever — uses. A balance is an equal-armed lever.
- Wood — is made of. The beam of a balance is wooden or bronze.
- Stone — is made of. Weights were hewn from stone.