With changes in technology, many things that used to be standard household items can now only be found in an antique shop. The sounds that many of us grew up with are imprinted upon our brains such that we could identify them anywhere. Have you ever stopped to think that your kids have probably never heard those sounds? Mental Floss put together a handy list: 1. Rotary dial telephone 2. Manual typewriter 3. Coffee percolator 4. Flash cube
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