Most microscopes work by using lenses to bend light rays. The human eye can see things as smali as the width of a human hair, but microscopes let us see things that are far smaller than this. The most powerful microscopes make images of individua! atoms.
02: Glass lenses called reading Stones were
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01: Morę than 2,000 years ago, glass balls filled with water were used in Ancient Greece and Romę to magnify things.
1,000 years ago.
03: A single lens used to
is called a simple
or morę lenses are known as compound