Quote:
Originally Posted by Disinfo Agent
I don't know. It seems to me that what jamesabrown described with the thermometer is a thermodynamic effect (i.e. explainable by classical thermodynamics), while the Heisenberg Uncertainty Principle is a quantum effect (a cornerstone of quantum mechanics, even)...
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I think the author of what I was reading was using the thermometer as a large, real-world example of what's going on at the subatomic level. The article wasn't about how to measure temperature but to illustrate the principle that measuring stuff changes stuff. My question really is, is that principle called the HUP? Or something else.