Convert span (cloth) to Bohr radius
Please provide values below to convert span (cloth) [span] to Bohr radius [a.u.], or Convert Bohr radius to span (cloth).
How to Convert Span (Cloth) to Bohr Radius
1 span = 4319913920.89451 a.u.
Example: convert 15 span to a.u.:
15 span = 15 × 4319913920.89451 a.u. = 64798708813.4177 a.u.
Span (Cloth) to Bohr Radius Conversion Table
| span (cloth) | Bohr radius |
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Span (Cloth)
A span is an obsolete unit of length, typically about 9 inches, based on the distance between the tip of the thumb and the tip of the little finger when the hand is fully extended.
History/Origin
The span has been used as a unit of measurement for thousands of years in many different cultures.
Current Use
The span is no longer a standard unit of measurement.
Bohr Radius
The Bohr radius is the most probable distance between the proton and the electron in a hydrogen atom in its ground state, 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. It is the atomic unit of length.
Current Use
The Bohr radius is a fundamental constant in atomic physics and is used to simplify calculations and equations.