Todd Siler began making drawings, studies, and models of a nuclear fusion device that uses fractal geometry.  The models from this research ("Fractal Reactor: Recreating the Sun") can be seen at the Fort Collins Museum of Contemporary Art.  Siler's current exhibit, which is entitled "The Mind and All It Creates", is showing through March 25, 2010.
  http://www.coloradoan.com/article/20100121/ENTERTAINMENT01/1210305

An example of the "Fractal Reactor" may be seen at his own web site:
  http://www.toddsilerart.com/news.html