Convert millimeter to a.u. of length
Please provide values below to convert millimeter [mm] to a.u. of length [a.u., b], or Convert a.u. of length to millimeter.
How to Convert Millimeter to A.u. Of Length
1 mm = 18897259.8857892 a.u., b
Example: convert 15 mm to a.u., b:
15 mm = 15 × 18897259.8857892 a.u., b = 283458898.286839 a.u., b
Millimeter to A.u. Of Length Conversion Table
| millimeter | a.u. of length |
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Millimeter
A millimeter is a unit of length in the metric system, equal to one-thousandth of a meter.
History/Origin
The prefix "milli-" comes from the Latin word "mille," meaning thousand. The millimeter was part of the original metric system adopted in France in 1795.
Current Use
The millimeter is widely used in engineering and manufacturing for high-precision measurements. It is also a common unit in construction and for measuring small objects.
A.u. Of Length
The atomic unit of length, also known as the Bohr radius (a₀), is approximately 5.29 x 10⁻¹¹ meters.
History/Origin
The Bohr radius is named after Niels Bohr, who proposed a model of the atom in 1913 where the electron orbits the nucleus at specific distances. The Bohr radius is the most probable distance between the proton and electron in a hydrogen atom in its ground state.
Current Use
The atomic unit of length is used in atomic physics to simplify calculations and equations.