In this video, BYU physics professor Brian Anderson and students, use "time reversal" to target sound waves to the Legos' locations to knock them over. Anderson uses a fun visual to demonstrate a technique that can be applied to destroy kidney stones or locate underwater objects like submarines. "At first science can seem intimidating and complicated, but when you use something like Legos to demonstrate the power of science, maybe [kids will] realize that when they grow up, science can enable th

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