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Is there a unit of measurement smaller than a nanometer?

Question #72680. Asked by battrivkev74. (Nov 27 06 7:29 AM)

sjhodges825

Yes
Scientists often measure lengths even smaller than a nanometer—the width of an atom, for instance, or the wavelength of a light ray. For this purpose, they use the angstrom (Å or A), equal to 0.1 nanometers.

 Nov 27 06, 7:39 AM
UT-7

1 angstrom (Å) = 0.1 nm

 Nov 27 06, 7:40 AM
zbeckabee

You mean the smallest distance we can measure?

There are measurements smaller than 1 Angstrom - 1 picometer is 100 times smaller, and 1 femtometer (also known as a fermi) is 100,000 times smaller, and is about the size of an atomic nucleus. But there are not any technologies available to practically do anything on that kind of length scale, so
the smallest useful scale is about an Angstrom.

 Nov 27 06, 9:59 AM

 Being a bit of an aficionado, I found it most intriguing to know of a product named after its own unit of measurement, has buyers signing a disclaimer form, and is 'sealed' with a miniature skull. What is it, and what is preceding item in terms of that measurement?

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