Glass lenses have helped revolutionize the way humans look at the world around them, from Galileo using his telescope to study the heavens above to modern-day scientists using microscopes to analyze bacteria invisible to the human eye. The phenomenon that allows all of this to be possible is that of refracting light. A curved-glass lens is capable of redirecting light in a way that appears to change the distance of the object without ever physically moving the object. This allows a human observer to study things in great detail that would otherwise be hidden from view.
- Converging lens (thin around perimeter, thickest in the middle)
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Instructions
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1
Hold your lens around the edges about three inches directly above a penny or other object you would like to magnify.
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2
Look down through your lens at the penny and adjust the distance between your eye and the lens until you see a clear image.
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3
Lift your lens farther above your penny and the image will continue to magnify. This will only happen to an extent. Eventually the image will distort and become indiscernible when the lens is too far above the penny.