SOLUTION to Lego Mindpower Pendulum Competition - Make Science Fun

281 views · Published 26 January 2015 · 1:11 · Indexed 5 October 2026

Channel: Make Science Fun · 2015 · Education

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The solution to how legoman controls the pendulums with his ‘mind’ is revealed.
It’s Physics! Each pendulum has its own natural resonant frequency (determined by its length).
A hidden rod, connected to an oscillating speaker, wobbles the rod at different frequencies. Thus causing each pendulum to swing, as the frequency is changed.

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