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.
Kurchatov th.jpeg en Igor Kurchatov employee of the Radium Institute Leningrad th ru ilmeny ac ru html Serge Lachinov Physicists from Russia Igor Kurchatov PDold
Page 2023 Free-images.com. All images are Public Domain