guardian: The Synlight experiment in Jülich, about 19 miles west of Cologne, consists 149 souped-up film projector spotlights and produces light about 10,000 times the intensity of natural sunlight on Earth. by Hannah Devlin
'When all the lamps are swivelled to concentrate light on a single spot, the instrument can generate temperatures of around 3,500C – around two to three times the temperature of a blast furnace.
'“If you went in the room when it was switched on, you’d burn directly,” said Prof Bernard Hoffschmidt, a research director at the German Aerospace Center, where the experiment is housed in a protective radiation chamber.
'The aim of the experiment is to come up with the optimal setup for concentrating natural sunlight to power a reaction to produce hydrogen fuel.'