I've always found it odd that when I'm working as a chemist, much of what I do uses SI units, but I don't use them at all outside of work. And I can't really translate between the two. I know that you can't run a GC lower than about 35 C without some sort of coolant (CO2 or LN2), but if you tell me the current temperature outside in "C" I'll just give you a blank stare.
Besides, in general, units of measure are completely FUBAR. Yes, switching to SI would help, but it would hardly "make things easy." E.g., pipe "sizes" are determined by the inner diameter. Which is nice for being able to quickly estimate flow through a given piece of pipe, but it also means that the outer diameter for "half-inch pipe" varies quite a bit depending on the material of construction of the pipe. (Conversely, tubing--which is merely really tiny pipes--is named by the outer diameter.)
Then there's the land of IT, where one kilobyte is 1024 bits, and to convert from Mbps to KBps you multiple by 128 (or maybe 125, or perhaps 122--no, no, really, I've found references for all of those).
While I have always admired your will power to stand on principle, I don't think the SI thing is a great idea. The next time you walk into a hardware store, your head will explode. Hell, mine does, and I'm not trying the least bit to encourage SI usage.
PS: Weird trivia. The Fahrenheit scale makes more sense than it appears to at first. The freezing and boiling point of water are 180 degrees apart--which is reasonable, given clocks and degrees of angles, and other base-60 units. (<yakkowakkodot>Thank you Sumeria! (http://www.metafilter.com/65751/Why-did-Sumerians-use-base-60-mathematics)</yakkowakkodot>) And 100 F was originally set at normal body temperature. Unfortunately, everyone's normal body temperature isn't exactly the same, and the early thermometer technology wasn't very precise, so now it's around 98.6.
PPS: Indeed, C isn't that great either, since it has negative numbers. How can you have a negative temperature? If you're going to switch to SI, go for Kelvin temperatures. Then your calculations will always work out properly.
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Date: 2010-Feb-20, Saturday 11:02 pm (UTC)Besides, in general, units of measure are completely FUBAR. Yes, switching to SI would help, but it would hardly "make things easy." E.g., pipe "sizes" are determined by the inner diameter. Which is nice for being able to quickly estimate flow through a given piece of pipe, but it also means that the outer diameter for "half-inch pipe" varies quite a bit depending on the material of construction of the pipe. (Conversely, tubing--which is merely really tiny pipes--is named by the outer diameter.)
Then there's the land of IT, where one kilobyte is 1024 bits, and to convert from Mbps to KBps you multiple by 128 (or maybe 125, or perhaps 122--no, no, really, I've found references for all of those).
While I have always admired your will power to stand on principle, I don't think the SI thing is a great idea. The next time you walk into a hardware store, your head will explode. Hell, mine does, and I'm not trying the least bit to encourage SI usage.
PS: Weird trivia. The Fahrenheit scale makes more sense than it appears to at first. The freezing and boiling point of water are 180 degrees apart--which is reasonable, given clocks and degrees of angles, and other base-60 units. (<yakkowakkodot>Thank you Sumeria! (http://www.metafilter.com/65751/Why-did-Sumerians-use-base-60-mathematics)</yakkowakkodot>) And 100 F was originally set at normal body temperature. Unfortunately, everyone's normal body temperature isn't exactly the same, and the early thermometer technology wasn't very precise, so now it's around 98.6.
PPS: Indeed, C isn't that great either, since it has negative numbers. How can you have a negative temperature? If you're going to switch to SI, go for Kelvin temperatures. Then your calculations will always work out properly.