1 micron = 10^(-6) metres.
1 millimetre = 10^(-3) metres = 10^3 x 10^(-6) metres = 10^3 microns = 1000 microns.
Thus 0.1 millimetres = 0.1 x 1000 microns = 100 microns.
One millimeter is MUCH wider than a human hair. About 20 human hairs equals 1 millimeter.
One micron is one millionth of a meter, or 1/8th the width of a human hair. The measurement is used to determine particles in an air stream. Therefore 140 microns would be 140 millionths of a meter. For more details, Google ''Define: Micron''
Yes, the width of a human hair is generally larger than a typical cell. Human hair can range from about 17 to 181 micrometers in diameter, while most cells, such as red blood cells, are about 6 to 8 micrometers wide. However, certain cells, like some types of bacteria, can be smaller than the width of human hair.
Whatever it is, if it measures 1,000th of a millimeter wide, it is 1 micron wide. Examples of some small measurements: A typical human hair is 100 microns wide (a 1/10th of a millimeter). A red blood cell is 7 microns wide (less than 1/100th of a millimeter). Here's a neat interactive video of small things for you: http://www.cellsalive.com/howbig.htm A staphylococcus bacteria in the video looks to be just under 1 micron wide. Most viruses are much, much smaller still!
To measure the thickness of a nose hair, you would typically use micrometers (microns), which are one-millionth of a meter. This unit is appropriate as the diameter of a human hair is usually in the range of 50 to 100 microns. Using micrometers allows for precise measurement on such a small scale.
This is estimated to be 100 microns. There are 1000 microns in a millimetre. So in millimetres, a human hair is approx 0.1 millimetres in width.
the diameter of human hair varies from about 40 microns to 120 microns. a micron or micrometer is a millionth of a meter. Copy paper thickness is about 100 microns (or 0.1 millimeter).
For the diameter of hair the best unit is micrometre.
Diatoms are microscopic. Diatoms range in size from about 2 microns to about 500 microns or equal to the width of a human hair.
While I was working in a cleanroom, I was always told that it was 50 microns (1/20 of a millimeter). However, I've heard numbers ranging from 20 µm to 100 µm.
The length of a strand of human hair can vary greatly depending on the person. However, the width of a human hair, in terms of how big it is, can measure anywhere from 40 microns to 120 microns. A micron is 1 millionth of a meter.
a millimeter
Eighteen thousandths of a millimeter. 0.0018 cm = 0.018 mm = 18 µm (micrometer) Human hair width actually ranges from 17 to 181 µm. 181 µm is almost .2 mm so you could say "about a fifth of a millimeter for coarse hair"
One millimeter is MUCH wider than a human hair. About 20 human hairs equals 1 millimeter.
Oh, dude, the smallest particle size visible to the naked human eye is around 40 microns. But like, who's really out here measuring particles with their eyeballs, am I right? Just stick to admiring the stars in the sky and leave the tiny stuff to the microscopes.
The width of a human hair is 0.0018 cm.
The smallest wire on a chip is measured in microns. Current chips have wires that are less than one micron wide, while a human hair is about 100 microns thick.