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why is the US not Metric

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Zero999:

--- Quote from: KL27x on January 22, 2020, 11:58:32 pm ---
--- Quote ---There are standard cross-sectional areas for commonly used wire sizes. You don't often get 0.52mm2, but convenient sizes such as 0.5mm2, 0.75mm2, 1mm2, etc. unless it's AWG or SWG, converted to meaningful SI units.
--- End quote ---
What makes you think these are the only sizes you will encounter outside of the US? Is there one die maker to supply all the wire manufacturers? Or is this the catalog of standard sizes that every country and every manufacturer within each country outside of the US have decided upon and adhere to within a proscribed tolerance limit, resulting in a standard chart which you have conveniently memorized?
--- End quote ---
No one uses SWG or AWG in Europe, for wiring or industrial machinery.  Like everything else, there are standard metric wire sizes. Look up IEC60228. At the moment, only sizes above 0.5mm2 are standardised. For smaller gauges we're stuck with a mishmash of SWG and AWG, but it might change in future. I suppose it was more important to standardise larger conductors which are used for safety critical applications, such as mains power. The sooner the smaller sizes are standardised, in SI units, the better.
https://en.wikipedia.org/wiki/IEC_60228

KL27x:

--- Quote ---You weigh each ingredient separately.

The reason for weighing the liquids is simplicity: why dirty a measuring cup when you already have the scale out to weigh the flour? (Measuring flour by volume is a fool’s errand, and it’s quite telling that professional bakers in USA go by weight, not volume.) So you just add an ingredient, tare the scale, add the next ingredient, tare again, etc.
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What I meant is that you might sometimes set out some of your ingredients into measured portions in an intermediary container, e.g. a bowl or a cup or even (gasp!) a measuring cup, before adding them into the cake batter. If you pour the milk from the carton into the batter and you overshoot the mark, you can't undo it very easily.  :-//

SilverSolder:

--- Quote from: KL27x on January 23, 2020, 07:33:36 pm ---
--- Quote ---You weigh each ingredient separately.

The reason for weighing the liquids is simplicity: why dirty a measuring cup when you already have the scale out to weigh the flour? (Measuring flour by volume is a fool’s errand, and it’s quite telling that professional bakers in USA go by weight, not volume.) So you just add an ingredient, tare the scale, add the next ingredient, tare again, etc.
--- End quote ---
What I meant is that you might sometimes set out some of your ingredients into measured portions in an intermediary container, e.g. a bowl or a cup or even (gasp!) a measuring cup, before adding them into the cake batter. If you pour the milk from the carton into the batter and you overshoot the mark, you can't undo it very easily.  :-//

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Be bold - Be confident!  - it rarely goes wrong.

KL27x:
^That's how I roll, for whenever I do what passes as cooking. I've never weighed anything I later ate. But I assume baking requires high precision, or something.

I have mixed reagents for lab work. After spending 45 minutes mixing a solution, I wouldn't pour the last bit in there over a scale. :)

KL27x:

--- Quote from: Zero999 on January 23, 2020, 12:28:36 pm ---At the moment, only sizes above 0.5mm2 are standardised. For smaller gauges we're stuck with a mishmash of SWG and AWG, but it might change in future. I suppose it was more important to standardise larger conductors which are used for safety critical applications, such as mains power. The sooner the smaller sizes are standardised, in SI units, the better.
https://en.wikipedia.org/wiki/IEC_60228

--- End quote ---


--- Quote ---For smaller gauges we're stuck with a mishmash of SWG and AWG, but it might change in future.
--- End quote ---
Maybe they should standardize them to match AWG sizes? If that sounds weird...

...Americans use area to denote wire larger than half an inch diameter. Gauge for anything smaller. So this would be the same thing, in a way.

It appears the 0.52mm2 stuff you find all over is made to the American standard. Per wikipedia, 20 AWG = 0.518mm2 Not that this is a shocker.

;;;;
Now, I'm sure SWG will live on for quite awhile. But despite Britain implementing this SWG standard in 1880s, almost thirty years after Brown and Sharp invented AWG, they buggered it. Rather than sticking with a set percentage increase/decrease between steps, the Brits made their system piecewise linear, to make several areas of nice linear steps in while numbers. In imperial inches, of course. This was NOT future-proof and as well thought out, esp considering Britain is 20 miles from France.

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