Public domain photos

The image shows a black and white drawing of a pendulum on top of a table, with text written on it. The pendulum is a spherical object with a cylindrical shape and a handle on the side. The text on the paper is written in a bold font and is likely a description of the pendulum.

The image shows a black and white drawing of a pendulum on top of a table, with text written on it. The pendulum is a spherical object with a cylindrical shape and a handle on the side. The text on the paper is written in a bold font and is likely a description of the pendulum.Open in library