photo diffraction light candles on the two diffraction gratings

background beauteous beautiful beauty bright burst candle candles classbook color colorful crossed diffraction eccentric exceptional exemplification exemplum explosion figure fine fire flame flare flash glare glorious glory gratings heart illuminating illustration light lightening loveliness lovely mind motley multicolor obtained optics orders original photo physics polychrome psyche racy radiant rainbow schoolbook shine soul source spectrum spirit textbook texture tutorial unusual vivid waves