96K views · 389 reactions | Refraction happens when light changes direction as it passes from one material to another. The curved glass works as lense here. When light travels from air into water, it bends, creating an illusion of shifted background colours. #TheDadLab #scienceexperiment #scienceexperiments | TheDadLab | Facebook

34K views · 616 reactions | Gigantic Fresnel lens from a lighthouse, at the Maritime Museum of the Atlantic in Halifax, Nova Scotia... If you guys do a GoFundMe to buy me one, I promise to make the biggest overhead projector the world has ever seen.  @ns_mma #fresnel #light #lighthouse #lens #maritime #novascotia #halifax #crystal #refraction #guide #lightart #prism #rainbow #glass #glassart | Liquid Light Lab | Facebook