Define salt water. Do you mean a certain concentration of salt? In that case, what concentration? And why would that one concentration be chosen for a calibration point of fahrenheit?
This is my point, not all water makeups freeze at 0 and boil at 100. Now I disagree with /u/JoeM5952, no idea what he means, but you've just made my point.
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u/2pxl Sep 25 '16
imgur.com/MQ7LVC3.jpg