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:
Pebble bed reactor scheme English.svg en Pebble Bed Reactor scheme Pebble bed reactor scheme italiano svg svg Pebblebedreactorscheme italiano Picoterawatt derivative work OrbiterSpacethingy translation Cryptex This work is derivative of another work that was released as Public Domain Therefore it is also Public Domain File Pebble