
#37
Jun1310, 01:03 PM

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You will have pry my foot/inch tape measure from dying hands. For the reasons Phrak has already explained, there is no way I will never own or do I want to use a metric tape.
Need I point out that upon conversion to binary .1 becomes something less then nice. Where as the common subdivisions of the inch are perfect binary numbers. Down with .1! 



#38
Jun1310, 01:29 PM

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#39
Jun1310, 01:39 PM

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My favorite tape measure has both inch and cm. I think that having been a bike mechanic and then a physics teacher has made me literate in both sets of units. I usually tell my students that a meter is "the same as a yard," if you're just thinking about it. If you're actually buiding a jet, you'll need to be a little more specific. And take any speed in m/s, double the number to get mph. That won't hold up in court, but when was the last time you said "That guy was going about 82.7 miles per hour" ? 



#40
Jun1310, 01:58 PM

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At my work we have a test that requires use of a ruler that is in inches, with 1/10 hatch marks. A metric English ruler .




#41
Jun1310, 02:03 PM

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#42
Jun1310, 02:06 PM

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#43
Jun1310, 02:08 PM

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I seem to like using the metric system for small things and the English system for big things. For example, once you get smaller than a half inch, I start switching to using millimeters. But for larger things, feet, yards and miles makes more sense to me than decimeters, meters and kilometers.
Same with weight. I buy produce and meat by the quarter pound, half pound, pound, but smaller quantities I prefer thinking about in grams rather than ounces. Volumes present a bit of a problem, because common recipes are written with teaspoons and tablespoons in mind, but really, without having an actual measuring spoon, I really can't comfortably guesstimate volume using those measures. Cups, pints, quarts, gallons, sure, those all work for me. But small volumes, I would be much more comfortable measuring in milliliters. 



#44
Jun1310, 02:36 PM

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#45
Jun1310, 02:43 PM

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#46
Jun1310, 02:56 PM

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#47
Jun1310, 03:01 PM

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#48
Jun1310, 03:19 PM

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#49
Jun1310, 04:36 PM

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My father, g'father, and g'g'grandgather were all engineers. My g'g'grandfather actually was a railroad engineer, back when engineers were engineers. 



#50
Jun1310, 05:03 PM

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How about a 'scientific' system based on powers of 2 and three basic units: inches, pints and pounds. A pound could be defined as the weight of 1 pint of pure water (pretty close to the current US pound)
The notation could be nUlog_2 where n is a positive real number and U is a unit. So 3 pints would be written 3 p0, just 3 p or 1.5 p1; a gallon: 1 p3. A quarter pound would be 1 lb2. For distance, one mile can be closely approximated by 1 in16 =1.034 mi. Or we can just forget it and be quaint. 



#51
Jun1310, 05:45 PM

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Actually for most of the 19C engineering in continental europe was often in Imperial simply because Britain manufactured so much of the machine tools and parts. A little like how electronics is now done in fractions of an inch because of early US dominance in ICs. 



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Jun1310, 06:10 PM

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#53
Jun1310, 06:17 PM

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#54
Jun1310, 06:26 PM

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