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If you got a big graduated or clear cylinder, water, a pipe, and a tuning fork, you've got a sound learning opportunity! Learn about resonance with this Exploratorium Science Snack.

We don't normally view people upside down and so our brains aren't accustomed to it.

Known as the waterfall effect, this activity demonstrates adaptation in our visual system.

We listen to stereo music systems, tv's, and radios because it simulates being where the sound originates.