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Academics show how to create a spotlight of sound with LEGO-like bricks

Informatics experts create low-cost directional beams of sound. Using age-old principles of magnifying glasses, lighthouses and telescopes to create state-of-the-art sound. Bringing the vision of Minority Report into reality and transforming possibilities of entertainment industry.

from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/05/190507105746.htm
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