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A process that is capable of proceeding in a given direction, as written or described, without needing to be driven by an outside source of energy. The term is used to refer to macro processes in which entropy increases; such as a smell diffusing in a room, ice melting in lukewarm water, salt dissolving in water, and iron rusting...
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And these are all processes that indicate changes are taking place, but how about the things we use for measuring time: radioactive decay, a clock ticking, any of the standard sorts of events we use to measure change rate as opposed to the increased entropy changes mentioned above, which I assume have a lot of factors that affect their rates. What causes these standard events to take place? The interesting thing to note is that the 'standards' keep the same relationships. I don't think I'm making myself clear. Do we say that the standards are just our way of using entropy?
