Convert pica to Electron radius (classical)
Please provide values below to convert pica [pica] to Electron radius (classical) [r_e], or Convert Electron radius (classical) to pica.
How to Convert Pica to Electron Radius (Classical)
1 pica = 1502279257172.44 r_e
Example: convert 15 pica to r_e:
15 pica = 15 × 1502279257172.44 r_e = 22534188857586.6 r_e
Pica to Electron Radius (Classical) Conversion Table
| pica | Electron radius (classical) |
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Pica
A pica is a unit of typographical measurement equal to 1/6 of an inch.
History/Origin
The pica originated around the mid-18th century. It is a fundamental unit in the point system of typography.
Current Use
The pica is still used in graphic design and printing to measure the width of lines of type and the dimensions of pages.
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.