In 1812, four men at Cambridge University met for breakfast. What began as an impassioned meal grew into a new scientific revolution, in which these men — who called themselves “natural philosophers” until they later coined “scientist” — introduced four major principles into scientific inquiry. Historian and philosopher Laura Snyder tells their intriguing story.

Crazy Circle Illusion
Here is another crazy circle illusion by Brusspup. Look at those dots! These eight dots seem to be doing a circular movement!