Benjamin Franklin used color swatches and snow to test which colors absorbed more energy from the sun.
Though often taken for granted today, eyeglasses were an amazing scientific breakthrough.
Not many people remember that Franklin was an inventor . . . and a good one, too! He also did some pioneering work in physics.
Zap... zap... zap... No, Ben Franklin was not struck by lightning.
Have you ever been mesmerized? If so, you know that the term "mesmerize" means to be captivated in a trance-like state. But do you know its history?
Learn about the coming of eyeglasses on this Moment of Science.