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Make: The Annotated Build-It-Yourself Science Laboratory by Windell Oskay

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Chapter 8. General Biology Equipment

Light Source For A Microscope

Purpose: In order to view objects satisfactorily under a microscope, a light source is needed which is neither too bright nor too weak. The light is usually reflected off a mirror at the base of the microscope and up through the lenses.[248]

Materials: Six-foot extension cord, light base ($1-3 porcelain fixture from the hardware store), and a small 15- or 25-watt blue bulb.

What to Do: Cut off the socket end of the extension cord. Divide the cord into two wires. Strip the end of the wire so that about ¾ of an inch is exposed on each wire. Connect wires to a screw on the bottom of the porcelain fixture. Screw in your light bulb. The porcelain fixture can be mounted on a block of wood ...

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