tagged with: carnot heat engine, thermodynamics, second law of thermodynamics, work, physics, physicist, geek, humor, 24 hours per day, words and unwords, saying, truism, attitude, educational, science, scientist, temperature differences, 7 days per week, 365 days per year, definition, heat engine diagram, science teacher, physics teacher, truisms No need to be a physics major or physicist to enjoy any of these gifts featuring the Carnot heat engine, along with the wry truism saying "It Takes A Lot Of Work To Exist 24 Hours A Day, 7 Days Per Week, 365 Days Per Year". Specifically, these gifts feature the second law of thermodynamics. Since any thermodynamic engine requires such a temperature difference, it follows that useful work cannot be derived from an isolated system in equilibrium; there must always be an external energy source and a cold sink. Educational physics attitude gifts for all who work in the thermodynamic sense of the word!
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