We've all heard about the flat versus round Earth debate, but what else can we learn about our planet? In the spirit of Earth Day, the solution to a mathematical question reveals a puzzling fact about the world we live in.
Love USC sports?
Sign up for our sports newsletter to get an update every Monday on the Trojans' success.
Get the USC news that matters to you.
Sign up for text alerts!
(We promise we'll only text you when it's important)
1. Go to text.uscannenbergmedia.com and sign up.
2. Enjoy updates about the most important news for USC students delivered right to your phone.