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.
Teslathinker. Nikola Tesla with Rudjer Boscovich's book Theoria Philosophiae Naturalis in front of the spiral coil of his highvoltage Tesla coil transformer at his East Houston St New York laboratory Originally published in Tesla's Important Advances in Electrical May Credited in caption to Tonnel
Page 2023 Free-images.com. All images are Public Domain