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MIT Media Lab researchers have designed a system that allows underwater and airborne sensors to directly share data. An underwater transmitter directs a sonar signal to the water’s surface, causing tiny vibrations that correspond to the 1s and 0s transmitted. Above the surface, a highly sensitive receiver reads these minute disturbances and decodes the sonar signal.

Wireless communication breaks through water-air barrier

MIT researchers have now solved a longstanding problem: direct data transmission between underwater and airborne devices. They have designed a system that tackles this problem...