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, ...

If a microscope is defined as an instrument that enables the visualization of objects or structures that are usually invisible to the naked eye, then microscopes appeared at the end of the sixteenth ...