I have calculated the length of the year with great care.
Calculated Earth's circumference
His work on calendrics and the length of the tropical year.
c. 240 BCE
Found in 1 providers: grok
Cross Reference
1 source
"The Earth is divided into five zones: one torrid, two temperate, and two frigid."
Humorous"The world is much larger than previously imagined."
Strange & Unusual"Eratosthenes refused to accept the popular understanding of any subject and sought always to find out the truth of a matter for himself."
Shocking"The universe is a grand design, filled with mathematical harmonies."
Strange & Unusual"One must combine practical observation with theoretical understanding."
Strange & UnusualPremium quality, printed on demand. Ships worldwide.
Don't see what you're looking for? Email us for custom products
