Public domain photos

The image shows a drawing of a machine with a bell on top of it, which is believed to be an electrostatic generator. The text accompanying the drawing provides further details about the device, such as its purpose and how it works.

The image shows a drawing of a machine with a bell on top of it, which is believed to be an electrostatic generator. The text accompanying the drawing provides further details about the device, such as its purpose and how it works.Open in library