Sound Science Edison Phonograph Kit
#13730162 #13730162CS
Product Details
Thomas Edison himself would be all ears for the sound-based experiments in this science kit. Build your own working phonograph that can record and playback voices, play a tune on water glasses, explore echoes, transmit sounds that adults can't hear and measure sounds with a decibel meter. Twenty different intriguing experiments in all demonstrate the ins and outs of sound vibrations. Includes 48-page book with step-by-step instructions for 20 projects. Uses three AA batteries (sold separately).
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