19 May
2006
19 May
'06
6:19 p.m.
A micrometer is defined as one-millionth of a meter. A micron is defined as a thousandth of a millimeter. But since there are 1,000 millimeters in a meter a micron can also be called a micrometer. So if a micron and micrometer are the same thing, why the two names? Puzzled...