In article 7ycKf.779168$x96.159058@attbi_s72,
Oscar_Lives wrote:
...snipped...

Tell me why you need to change the diamond stylus of a phonograph record?
Diamonds are the hardest substances known to man, and surely much harder
than vinyl. Why would a phonograph needle ever wear out?



Rocks are surely much harder than water. Why would a rock in a river
ever become a smooth pebble?

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Larry Wasserman Baltimore, Maryland