The Hall of Mirrors electricity experiment, Marley Machine on the banks of the Seine, burning mirror solar power demonstration. Gosh, I want to see an exhibition like that! For those of you lucky enough to be in the vicinity, there's a spectacular exhibition called Science and Curiosities at the Court of Versailles in, where else, Versailles. The exhibition runs from 26 October 2010-27 February, 2011. If you happen to go, please do tell me and let me live vicariously through you.