Convert handbreadth to Earth's polar radius
Please provide values below to convert handbreadth [handbreadth] to Earth's polar radius [R_p], or Convert Earth's polar radius to handbreadth.
How to Convert Handbreadth to Earth's Polar Radius
1 handbreadth = 1.19872533022877e-08 R_p
Example: convert 15 handbreadth to R_p:
15 handbreadth = 15 × 1.19872533022877e-08 R_p = 1.79808799534316e-07 R_p
Handbreadth to Earth's Polar Radius Conversion Table
| handbreadth | Earth's polar radius |
|---|
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.
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.