Inside Japan's Large Helical Device (LHD) stellarator, built to test plasma fusion confinement.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/52816253@N00">Justin Ruckman</a> from Charlotte, NC, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/hieronymus/2725741289/">Infinite Machine</a>