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A comment on A mathematician's way of converting miles to kilometers. Parent comment

Re:A mathematician's way of converting miles to kilometers by ghaff on Saturday August 10, 2019 @06:01AM (#20661153)
A calorie was originally defined as as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius.

But you're right that is sort of a weird unit from the past insofar as it's related to the SI system but isn't formally part of it. (It's basically now defined by its ratio to joules.)

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Re:A mathematician's way of converting miles to kilometers by ghaff on Saturday August 10, 2019 @08:07AM (#20661598)
Adding: There are a number of measurements that aren't necessarily obviously related but are actually the same thing in terms of units. Heat, work, and energy are all newton meters or kg m^2/sec^2 in SI units.
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