NY Times article on commuters dressing for work
#51
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#52
aka Tom Reingold
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I have a pair of dress trousers at work. One day I rode to work and had forgotten I had brought those pants home so I went around work pantsless. It was like a dream!
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“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
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#53
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A difference of 10° F is nine fifths the difference in Centigrade, as you already know 5.6°C
Your question made me wonder, maybe for the first time, why on earth Fahrenheit normalized his scale at 32° for freezing. It turns out that he just used the earlier Roemer scale, which was based on an alcohol thermometer, and multiplied everything by four, later adjusted by a couple of degrees for a more accurate mixture of ice water. So, basically arbitrary and almost random.
We like it better though. Zero is terribly cold and 100 is uncomfortably hot, it works pretty well for that, more of a metric scale than Centigrade from that perspective.
Your question made me wonder, maybe for the first time, why on earth Fahrenheit normalized his scale at 32° for freezing. It turns out that he just used the earlier Roemer scale, which was based on an alcohol thermometer, and multiplied everything by four, later adjusted by a couple of degrees for a more accurate mixture of ice water. So, basically arbitrary and almost random.
We like it better though. Zero is terribly cold and 100 is uncomfortably hot, it works pretty well for that, more of a metric scale than Centigrade from that perspective.
Not really random. As you note, 100 is a very high temp an 0 very low. In fact, it's based on the highest and lowest normal European temps and very useful as a human temperature scale. Who really cares where water boils or freezes and, in any event, those actual number depends on many factors such as air pressure and dissolved minerals. And you can't divide or multiply temps so the "metric" thing is mostly irrelevant.
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Who really cares where water boils or freezes and, in any event, those actual number depends on many factors such as air pressure and dissolved minerals. And you can't divide or multiply temps so the "metric" thing is mostly irrelevant.
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The problem with a calorie is that it's got no relation to a joule.
The kilogram is the only unit left with a physical reference. Look into it if you're interested in this sort of thing, Wired did a story a few years ago
The kilogram is the only unit left with a physical reference. Look into it if you're interested in this sort of thing, Wired did a story a few years ago
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Since we're talking units...
...I cannot grasp the ounce. Especially in cooking, where the unit is used for both mass and volume. In the kitchen with my wife, and she barks, "quick, bring me 4 ounces of mushrooms" I know that these must be a checked with the scale. Okay.
But if she says, "bring me 8 ounces of dry rice"...uh, oh. "Um, Honey, would you like 3/4 of a cup of rice? Or should I weigh out what you need?" She looks at me like I'm brain dead.
Why is this?
Oh, and I have special clothing that I use for my bike commuting. Not all was designed for bicyclists, but each piece is chosen to do its specific job. I do not wear my bicycling clothing when I work. Neither do I wear my commuting clothes when I'm not on the bike, but only when I ride. This keeps things simpler. And, I have the benefit of wearing exactly what works for the planned ride and its weather conditions. But it's taken me decades to accumulate each piece, things like arm warmers, wool socks, windproof mittens, nylon/spandex headbands, a proper fitting rain jacket, a correct base layer - these all have taken years of trial and error to get just right.
Could street clothes do as good of a job for me? I'd be really astonished if that were the case...but, that's just me.
But if she says, "bring me 8 ounces of dry rice"...uh, oh. "Um, Honey, would you like 3/4 of a cup of rice? Or should I weigh out what you need?" She looks at me like I'm brain dead.
Why is this?
Oh, and I have special clothing that I use for my bike commuting. Not all was designed for bicyclists, but each piece is chosen to do its specific job. I do not wear my bicycling clothing when I work. Neither do I wear my commuting clothes when I'm not on the bike, but only when I ride. This keeps things simpler. And, I have the benefit of wearing exactly what works for the planned ride and its weather conditions. But it's taken me decades to accumulate each piece, things like arm warmers, wool socks, windproof mittens, nylon/spandex headbands, a proper fitting rain jacket, a correct base layer - these all have taken years of trial and error to get just right.
Could street clothes do as good of a job for me? I'd be really astonished if that were the case...but, that's just me.
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I have done similar, I had to do some work on Portland OR, I was out of Sacramento CA. As I arrived in Portland I suddenly realized that I had all my work related equipment; but no clothing except what I was wearing. Stupid things happen
As far as commuting goes, I just wear my work clothing on my commute; but then, it is just a couple of miles. On the way to work I use the "e" in e-bike a bit more than I do going home. . . yes, I know, an e-bike . . . some here will say that I should drive instead; however, I choose not to.
As far as commuting goes, I just wear my work clothing on my commute; but then, it is just a couple of miles. On the way to work I use the "e" in e-bike a bit more than I do going home. . . yes, I know, an e-bike . . . some here will say that I should drive instead; however, I choose not to.
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edit: that 0.2mm jams another 2 km into the distance from equator to north pole so is a nontrivial change to the definition...
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I was just needling acidfast7 about the "metric logic" of the Fahrenheit scale. But keep talking like that and you'll wind up using slugs and BTU and other weird units. As opposed to the simple clarity of needing 1 calorie to raise the temperature of 1 cubic centimeter of water (which weighs 1 gram) by 1 degree.
Needling is good and I am thrilled to know exactly how many calories I need to buy the next time I warm up my 250cc cup of coffee. Helpful!
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Now it's rolled around to snarky Sunday. I was driven by curiosity to learn a bit more about calories and discovered that it is not actually an official metric measurement. That's the joule. Here's a bit of what Wikipedia has to say:
"Although these units (i.e. calories) relate to the metric system, all of them have been considered obsolete in science since the adoption of the SI system.[3] The unit of energy in the International System of Units is the joule. One small calorie is approximately 4.2 joules (so one large calorie is about 4.2 kilojoules). The factor used to convert calories to joules at a given temperature is numerically equivalent to the specific heat capacity of water expressed in joules per kelvin per gram or per kilogram. The precise conversion factor depends on the definition adopted."
I don't remember why we were talking about this and don't expect that anyone cares but am driven to share my enlightenment.
"Although these units (i.e. calories) relate to the metric system, all of them have been considered obsolete in science since the adoption of the SI system.[3] The unit of energy in the International System of Units is the joule. One small calorie is approximately 4.2 joules (so one large calorie is about 4.2 kilojoules). The factor used to convert calories to joules at a given temperature is numerically equivalent to the specific heat capacity of water expressed in joules per kelvin per gram or per kilogram. The precise conversion factor depends on the definition adopted."
I don't remember why we were talking about this and don't expect that anyone cares but am driven to share my enlightenment.
Last edited by asmac; 10-22-17 at 12:43 PM.
#66
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I like riding fast. I use my commute as a daily workout. One does not need to do this, but I just like it. I used to ride in regular clothes, but now I wear cycling clothes. At work, I like to say I'm changing from my Superman costume to my Clark Kent costume.
This winter, I'm not sure what I'll do. I'll see as time and weather progress.
This winter, I'm not sure what I'll do. I'll see as time and weather progress.
Edit: Like mentioned in the article, I don't wear a back bag but a rear rack so my back isn't a sweating mess.
Last edited by SylvainG; 10-28-17 at 08:52 PM.
#67
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My normal commuting bike has a front rack, and I use panniers with it. I like to ride a lightweight racing bike sometimes, so a cycling backpack works well. There are two reasons: keeping the bike light, and putting the cargo weight on the body keeps the bike's handling light, since it becomes sprung weight.
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New York City and High Falls, NY
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“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
#68
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