Convert pica to Earth's polar radius
Please provide values below to convert pica [pica] to Earth's polar radius [R_p], or Convert Earth's polar radius to pica.
How to Convert Pica to Earth's Polar Radius
1 pica = 6.65958511549994e-10 R_p
Example: convert 15 pica to R_p:
15 pica = 15 × 6.65958511549994e-10 R_p = 9.98937767324991e-09 R_p
Pica to Earth's Polar Radius Conversion Table
| pica | Earth's polar radius |
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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.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.