Convert handbreadth to Bohr radius
Please provide values below to convert handbreadth [handbreadth] to Bohr radius [a.u.], or Convert Bohr radius to handbreadth.
How to Convert Handbreadth to Bohr Radius
1 handbreadth = 1439971306.96484 a.u.
Example: convert 15 handbreadth to a.u.:
15 handbreadth = 15 × 1439971306.96484 a.u. = 21599569604.4726 a.u.
Handbreadth to Bohr Radius Conversion Table
| handbreadth | Bohr radius |
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Handbreadth
A handbreadth is an ancient unit of length, based on the width of the hand at the knuckles, excluding the thumb. It is typically about 3 inches.
History/Origin
The handbreadth has been used as a unit of measurement in many cultures throughout history.
Current Use
The handbreadth is an obsolete 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.