This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Crookes tube diagram.svg Diagram of Crookes tube an experimental discharge tube invented by William Crookes around The power supply applies voltage of several thousand volts between the two electrodes Electrons cathode rays released from the cathode plate are accelerated down the tube to the left toward the anode and strike the