3 ms·
Or make solar-based weapons against pirates, with a big lens.
by nextparadigms 14y ago
Or make solar-based weapons against pirates, with a big lens.
- daniel-cussen 14y agoYou know, I recently helped a friend find a large, but light and flexible, plastic fresnel lens. You can make wood char and smoke instantly and light on fire within seconds, it's really cool.