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        | Contains a lens that magnifies 10x |  
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        | Separates the eye piece lens from the objective lenses |  
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        | Holds the low, high and low low power lenses to rotate for viewing. |  
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        | Magnify an object even more |  
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        | Controls the amount of light passing through the opening of the stage |  
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        | Shoots light up through the diaphram |  
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        | Moves the stage up and down fo focusing with the high power objective lens |  
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        | Moves the stage for focusing with the low power objective lens |  
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        | Has 2 or more lenses (optical) |  
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        | Uses magnetic fields to bend beams of electrons |  
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        | Uses lenses to bend beams of light |  
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        Zacharias Janssen 
Put 2 lenses on a collapsing tube and saw it magnified 10x. Images were lager but not clearer  |  
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        Robert Hooke 
Studied cork with his own hand made microscope and saw tiny rooms he called cells  |  
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        Anton van Leeuwenhoek 
First person to observe microscopic organisms. He made 500 microscopes and only 10 survive today  |  
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