exactly one ohm of resistance per foot. 30 gauge is 0.1 ohms/foot, 20 gauge 0.01 ohm/foot and so on. The exact value is 1.049 ohm/foot, but 5% is close enough. So if you’re using 14-gauge wire to run a supply, that’s roughly 0.003 ohm/foot, so 100 feet is 0.3 ohms. If you put 10A through that wire, a common household load, you’ll lose 10 * 0.3 ohm = 3 volts. The wire resistance will then lose 3 volts * 10 amps = 30 watts. ]]>

Jesper Lützen, Why was Wantzel overlooked for a century?, Historia Mathematica 36 (2009) 374-394, doi:10.1016/j.hm.2009.03.001

]]>Thanks for a great article on an important topic. BTW, you have a typo: “pubic” instead of “public”.

Paul

]]>Do you allow guest posting on your site ? I can provide hi quality articles for you.

Let me know. ]]>

Looking forward to your report on the workshop.

]]>The dreams of glorious conquest and world domination all died as well. The warriors of today, terrorists included, carry on as if their god, “war”, was still alive.

No good will ever again come from it.

]]>Now I’m curious. I bought a stainless steel sink a while back. It was 18 gauge. Is that the same thickness as the diameter (radius) of 18 gauge wire?

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