Take a look at the pink circles. If you’re like most people, the circle on the right probably looks bigger, but they are actually the same size. People of the Himba tribe are not so easily fooled by optical illusions like this. The Himba can be found in the small town of Opuwo, Namibia in small numbers. They’re easy to pick out, with the distinctive red paint that they spread on their skin and hair.
Work Smarter, Not Longer
“I’ve done a good day’s work,” he said. It was only noon, and the bearded scientist’s workday was already over. While it might sound like he was slacking off, the famous scientist did a huge amount of research and wrote 19 books in his career.