World's largest 'artificial Sun' switched on in Germany
German scientists are testing an 'artificial Sun', a massive light array for making hydrogen fuel by dissociating water molecules. The array consists of 140 Xenon lamps, typically used as cinematic spotlights, in a honeycomb pattern focused on an 8-inch-by-8-inch patch. The lamps can focus energy 10,000 times more intense than natural sunlight generating temperatures up to 3,000ÂºC on the patch.