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:
Induction Light Bulb Museum of Science and Industry Chicago DSC. en Exhibit in the Museum of Science and Industry Chicago Illinois USA Photography was permitted in the museum without restriction own Daderot cczero Light bulbs in the Museum of Science and Industry Chicago Uploaded with Magnetic induction lamps Taken with Sony