We've seen solar powered watches, keyboards, and a whole assortment of gadgets that draw power from sunlight. You can even deck out your home with solar panels as a way of cutting down on your energy bill, though the upfront cost is significantly higher than picking up a piece of electronics equipment already designed to swipe energy from the sun. One area where Fujitsu thinks solar power makes a lot of sense is in laptops, hence the company's new Luce concept.

Ever wondered how you could harness the power of 5,000 suns? You can't, but you can create one heck of a death ray in your spare time. It's frighteningly easier than you think, as 19-year-old Eric Jacqmain shows in the YouTube video below.

"The R5800 is my latest and greatest solar creation," Jacqmain explains. "Made from an ordinary fiberglass satellite dish, it is covered in about 5800 3/8-inch (~1cm) mirror tiles. When properly aligned, it can generate a spot the size of a dime with an intensity of 5,000 suns! This amount of power is more than enough to melt steel, vaporize aluminum, boil concrete, turn dirt into lava, and obliterate any organic material in an instant. It stands 5 feet 9 inches and is 42 inches across."

Jacqmain's claim of 5,000 suns is very likely exaggerated, but it's a cool creation nonetheless. For reasons unknown, the awesome R5800 was permanently retired (destroyed) in a burning shed.