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health advisory Hospital Doctor Yu 2007-11-8 19:07:56

Why is it called gauge? why not mm, cm, etc?

Answers:

The number of the gauge size corresponds to a fraction of a centimeter divided by that number. For example, gauge 20 needle is 1 cm dived by twenty, or 0.5 mm. And for a gauge 26 needle, the diameter of the needle is 0.385 mm. That means as the gauge increases, the needle becomes smaller. I guess they use gauges rather than the actual needle size because it's easier to say "gauge 20" rather than "0.5 mm."

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Why do trains run on a gauged track?

Gauge how far something is lately?

Gotta have some way to measure things.

Especially things that are fractions of inches.

Mils, mms, iotas, microns, A.U.s.

Just a name that someone, somewhere applied one time and it stuck. No rhyme or reason. It's just what they call it.

Gauge:

Function: noun

Etymology: Middle English gauge, from Anglo-French

1 a : a measurement (as of linear dimension) according to some standard or system: as

(1) : the distance between the rails of a railroad

(2) : the thickness of a thin material (as sheet metal or plastic

film)

(3) : the diameter of a slender object (as wire or a hypodermic

needle)

synonym see STANDARD

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the size of the needle lets them know how much they are putting in..

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