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→Petrified Waves
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piezo disc emits square waves produced by an oscilating circuit | piezo disc emits square waves produced by an oscilating circuit | ||
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'''Crystal solution and sound waves trapped in a box''' | |||
[[Image:Waveproof box.jpg]] | |||
sound isolating box with | |||
magnesium sulfate solution | |||
in petri dish | |||
attached to peizo disc | |||
piezo disk works as a loudspeaker in combination with the petri dish | |||