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My street isnt that far into our Hum Dinger. We already got the humming noise but we need to get the bell to work.
Hum Dingers are a homeaid system. You pull a string and it hums. Then you let the string go and a bell dings.
Article posted February 2, 2010 at 10:43 AM •
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We are wondering what a humdinger looks like? Could you post a picture? We are studying about sound too. We used a long gong, a tuning fork, a sound chamber, a tongue depressor, and a tone generator.
Comment Posted on February 2, 2010 at 11:07 AM by
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My favorite sport is Softball. I like the color green. I want to be a nurse when I grow up.
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