quartz-poker:

themercuryjones:

Congratulations, B.o.B., a dude more than 2,000 years ago figured out what you still can’t understand despite the benefits of free public school, generations of documentation and the internet at your fucking fingertips.

Some insight to exactly what Eratosthenes discovered:

Wikipedia states if he’d used the Egyptian Stade (standard unit of distance back in the day), he would have gotten a value of circumference of 39,690 km, an error of 1.6%, and if he’d used the Athenian Stade (an even more standard unit given at the time the Greeks were in charge of most things culturally), it’d have been a 16% error.

But either way he came very close to predicting the true size of the Earth. Using nothing more than two obelisks, two wells, a sundial, and some camels.

And B.o.B.’s an idiot. He has a song about airplanes, which regularly fly high enough that you can see the curvature of the Earth on a cloudless day if you’re flying over a relatively even geographic surface, such as…I dunno, the ocean on a transoceanic flight. Which is the kind of flight he’s definitely taken before. If he spent less time partying in first class and more time looking out the window, he’d know the Earth is round.