Source: NOVA: "Galileo's Battle for the Heavens" This resource was adapted from NOVA: "Galileo's Battle for the Heavens." As early as the 1300s, eyeglasses made from convex, or outward-curving, lenses ...

Poor eyesight is not a problem for today. But imagine what it must have been like long ago. In ancient times, people tried to find ways to magnify things and make them appear bigger. In ancient Rome, ...