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  • Magnifying Glass Definition

    Whether you are a kid trying to set leaves on fire with the sun or a person looking for clues, you have most likely encountered a magnifying glass in some shape or form. In the modern world, it's...

  • How Does an Optical Cable Work?

    An optic cable is made of glass that is actually like a tube. It is very thin and usually made up of several strands of glass. These strands of glass "conduct" light similar to the way a wire...

  • How Does an Overhead Projector Work?

    The main component of an overhead projector is the base. This base contains a clear glass top with an interior light. A small fan on the back of the unit removes heat that is produced by the...

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