Making a glass Fresnel lens with its concentric rings requires even more work, but as the ever-resourceful [Robert Murray-Smith] shows us, a Fresnel lens can be made from far more mundane materials.

Description: French physicist Augustin Jean Fresnel (1788-1827) and used in lighthouses all around the world. Since then it has been used in applications for light collection, light collimation and ...

Just like destroying an ant colony with a magnifying glass, there’s nothing like cooking ... [Uwe] came up with a much more technical means of building a Fresnel reflector that will cook ...

Experts told the Daily News that Clinton likely has a Fresnel prism placed on her glasses. The adhesive panel is used to treat double vision. “If she’s wearing a Fresnel prism, then she has ...