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A friendly robot carefully strikes a massive steel tuning fork with a rubber mallet during a science experiment.
Meet Sparky, the friendliest robot in the Science Center! Sparky doesn’t have feet; instead, he zips around on four sturdy wheels. Today, Sparky is working in his very own laboratory to learn about the magic of sound waves. He has a very special mission: he wants to see if sound can travel through the air like an invisible wave!
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A friendly robot carefully watches a high-tech 3D printer as it finishes printing a solid plastic gear on a workbench.

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