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by gus_massa
2135 days ago
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Like the speed of sound and the height of the table where the experiment is. Note that the pressure of the air changes with height. For a few inches the change is negligible and very difficult (impossible?) to measure, but the effect must be out there. I had once a problem with the temperature of the room, you usually ignore it, but it has a bigger effect like a 5% variation. |
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