The Earth from 18,000 Miles

Things you always wanted to Know. But were afraid to ask.

Today — — -What is its circumference? — — — in round numbers its

27000 Roman miles

or 10,000 Japanese ri

Now for the rest of us
The earth is measured in minutes of arc or 21,600 Nautical miles Initially each Nautical Mile was 6080 British Imperial Feet

But Since 1929 Exactly 1.852kilometers or 6076.1549 US feet