In this 23 July 2021 53 minute video, Laban Coblentz provides an introduction
to the ITER Tokamak, a joint multi-billion dollar nuclear fusion research
project being undertaken by 35 nations in France.
Full of gee-whizz data such as an explanation of why it is sized as it is
(in order to achieve a ten times ratio of output thermal power to input thermal power -
a ratio known as 'Q') and the fact that this 830 cubic metre vessels only uses 2 to 3 grams of
hydrogen-deuterium fuel.
https://youtu.be/kDaTQSmsJC8