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"Machine used to generate electricity by induction using transformed kinetic energy from the crank." -Avery 1895

Induction Machine

"Machine used to generate electricity by induction using transformed kinetic energy from the crank."…

"When the pendulum hands at rest in a vertical position, as Pa, it has no energy at all. Considered as a mass of matter seperate from the earth; it certainly has potential energy; but considered as a pendulum, it has not." — Avery, 1895

Path of a pendulum

"When the pendulum hands at rest in a vertical position, as Pa, it has no energy at all. Considered…

A device used for demonstrating the elastic properties of materials.

Physics demonstration

A device used for demonstrating the elastic properties of materials.