Ultimately, the researchers want to shrink neural dust motes down to just 50 microns wide, or roughly half the average width of a human hair. (businessinsider.com)
Each wagon - wheel molecule measures only six nanometers wide, which is large for a molecule but tiny compared with the 100,000 nanometer width of a human hair. (sciencedaily.com)
This type of pollution refers to particles found in the air that are less than 2.5 micrometers in diameter, or 1 / 30th the average width of a human hair. (sciencedaily.com)