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Unring A Bell? Acoustic Engineers Can!

GE unringing Burmese temple bellWho says you can’t un-ring a bell? As a team of acoustical engineers and a biomedical engineering student demonstrate, “destructive interference” can can silence even a huge temple bell – leaving a sleeping baby undisturbed.

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Simple Musical Instruments

Cardboard guitarPairs of students in grades 3 – 5 investigate sound frequencies and acoustic engineering by creating four different instruments – a shoebox guitar, water-glass xylophone, straw panpipe, and soda bottle organ.

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