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), how to build a solar shower—have set out to see whether the concept really works. So they decided to take on some pirates. Of course one could argue that using solar power for warfare is hardly the most TreeHuggerish pastime, but hey—they're only cardboard pirates. And whether or not solar powered weapons have a place in a sustainable future, it's hard to deny that this is a pretty powerful demonstration of the power of the sun. I just fear that too many teenage boys will watch this and want to try it out for themselves.
Need we say it? DO NOT TRY THIS AT HOME!