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How Fast Is the Speed of Light?
Superman may have been faster than a speeding bullet, but he doesn’t stand a chance in a race against light!
How Fast Is the Speed of Light?
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Who Wrote The Nutcracker?
Today’s Wonder of the Day will be a big hit with fans of the ballet!
Who Wrote The Nutcracker?
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What Is a Theremin?
Turn up the sound! Today's Wonder of the Day makes music for your ears!
What Is a Theremin?