How an Ancient Greek Calculated the Earth’s Circumference

Last updated on January 30th, 2021 at 11:02 am

Here's how you can calculate the circumference of the earth with just a stick.

All the way back in 240BC, a Greek mathematician named Eratosthenes calculated the Earth’s circumference using nothing but a stick in the ground. How did he do it? Check out the video below from Business Insider for the answer.

You can see more from Business Insider on their YouTube channel.

Sharif Jameel is a business owner, IT professional, runner, & musician. His professional certifications include CASP, Sec+, Net+, MCSA, & ITIL and others. He's also the guitar player for the Baltimore-based cover band, Liquifaction.

1 thought on “How an Ancient Greek Calculated the Earth’s Circumference”

  1. you can’t calculate the earth’s circumference without making the absurd assumption that the earth is round. doesn’t a round earth sound a little dangerous to you?

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