Look closely. These are perfectly round circles that don’t overlap each other pic.twitter.com/Hgp5BjZtwU
— World and Science (@WorldAndScience) May 13, 2017
2017-05-15
Look closely. These are perfectly round circles that don’t overlap each other pic.twitter.com/Hgp5BjZtwU
— World and Science (@WorldAndScience) May 13, 2017