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 fromBusiness Insiderfor the answer.
You can see more from Business Insider on theirYouTubechannel.
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.