| 18 August 2010

Image credit: Neddy's Palaver Legends abound about the Archimedes "death ray", constructed from giant mirrors, which he allegedly used during the siege of Syracuse in 212 BC to set Roman ships ablaze. Now Green Power Science—the folks who brought us videos on flash cooking eggs with a Fresnel lens, building your own solar space heater with discarded campaign signs and, most recently (to mixed reviews), Read the full story on TreeHugger