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Breakthrough Laser Technology Enables Communication Through Thin Air

Researchers at MIT have developed a breakthrough laser technology to transmit audible messages over the air. The technology can transmit audible messages to anyone in a crowd despite a complete chaos all around. The technology was tested using different laser methods, wherein various audible messages including music was transmitted at an audible volume. The technology is enabled by photoacoustic effect. When sound waves absorb light, this effect occurs as a