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User Name | Thread Name | Subject | Posted |
GUEST,mack/misophist | BS: Puzzles. can you help me? (80* d) | RE: BS: Puzzles. can you help me? | 04 Dec 04 |
The tree bit is quite old. Bishop Berkeley started it, I think. The answer depends on how you want to define sound. And whether you want to bring in the quantum observer effect. I suggest you don't. |