Lego Toppling (VIDEO)

Brigham Young University

Caption

Using lasers and Lego mini-figures, a BYU physics professor is studying time reversal to see how targeted sound vibrations might be useful in applications from medicine to the military to communications. In this acoustics lab demonstration, a Brigham Young University physics professor illustrates how lasers and sound waves are used to target one Lego figure on a table, sending sound vibrations that cause a single figure to fall while the other objects on the table remain upright.

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Brigham Young University

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