Convert span (cloth) to Electron radius (classical)
Please provide values below to convert span (cloth) [span] to Electron radius (classical) [r_e], or Convert Electron radius (classical) to span (cloth).
How to Convert Span (Cloth) to Electron Radius (Classical)
1 span = 81123080526076.2 r_e
Example: convert 15 span to r_e:
15 span = 15 × 81123080526076.2 r_e = 1.21684620789114e+15 r_e
Span (Cloth) to Electron Radius (Classical) Conversion Table
| span (cloth) | Electron radius (classical) |
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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.
Electron Radius (Classical)
The classical electron radius is a quantity with the dimension of length, approximately 2.82 x 10⁻¹⁵ meters.
History/Origin
The classical electron radius is a concept from classical physics that attempts to model the electron as a spherical shell of charge. It is not considered the actual size of an electron.
Current Use
The classical electron radius appears in the Thomson scattering cross-section and is a useful length scale in atomic and high-energy physics.