ELI5: Explain Like I'm 5

Optical microscope

An optical microscope is a tool that magnifies tiny things so we can see them more clearly. It works by using a special kind of lens that makes things look bigger. The light travels through the lens to a special part in the microscope that magnifies the image of the tiny thing until it's big enough to see. With an optical microscope we can look at very small things that we can't see with our eyes alone.
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