Convert Earth's polar radius to ken
Please provide values below to convert Earth's polar radius [R_p] to ken [ken], or Convert ken to Earth's polar radius.
How to Convert Earth's Polar Radius to Ken
1 R_p = 3000789.43144697 ken
Example: convert 15 R_p to ken:
15 R_p = 15 × 3000789.43144697 ken = 45011841.4717045 ken
Earth's Polar Radius to Ken Conversion Table
| Earth's polar radius | ken |
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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.
Ken
The ken is a traditional Japanese unit of length, equal to six Japanese feet (shaku). Its length has varied over time, but it is now standardized at 1.818 meters.
History/Origin
The ken was traditionally used in Japanese architecture and land measurement.
Current Use
The ken is still used in traditional Japanese carpentry and architecture.