Книга: «Designs for Coloring: Prisms»

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• Ruth Heller — (1923–2004) was a children s author and graphic artist known for her use of bright color and detail in both geometric design and the representation of creatures,plants, patterns, and puzzles. She worked primarily with a combination of colored… …   Wikipedia

• Dye laser — Close up of a table top dye laser based on Rhodamine 6G, emitting at 580 nm (yellow orange). The emitted laser beam is visible as faint yellow lines. The orange dye solution enters the laser from the left, and is pumped by a 514 nm (blue green)… …   Wikipedia