Scientists have unveiled the world's first 'living laser', having coaxed an organic cell into emitting fluorescent light. It was the glowing jellyfish that illuminated the light bulb above the researchers' heads, and the lasing cell was engineered using the light-emitting protein found in the sea creature. It then requires a spot of light manipulation; the cell is immersed in a weak blue light, leaving the scientists with a "bright, directional and narrowband laser emission" as researchers
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