Shared Flashcard Set

Details

Microscopes
History Of Microscopes and Everything
19
Science
7th Grade
09/29/2009

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Cards

Term
Eye Piece
Definition
Contains a lens that magnifies 10x
Term
Body Tube
Definition
Separates the eye piece lens from the objective lenses
Term
Nose Piece
Definition
Holds the low, high and low low power lenses to rotate for viewing.
Term
Objective Lenses
Definition
Magnify an object even more
Term
Arm
Definition
Supports the body tube
Term
Stage Clip
Definition
Holds the slide in place
Term
Stage
Definition
Supports the slide
Term
Diaphram
Definition
Controls the amount of light passing through the opening of the stage
Term
Light Source
Definition
Shoots light up through the diaphram
Term
Base
Definition
Supports the microscope
Term
Fine Ajustment Knob
Definition
Moves the stage up and down fo focusing with the high power objective lens
Term
Coarse Ajustment Knob
Definition
Moves the stage for focusing with the low power objective lens
Term
Simple Microscope
Definition
Has 1 lens (optical)
Term
Compound Microscope
Definition
Has 2 or more lenses (optical)
Term
Electron Microscope
Definition
Uses magnetic fields to bend beams of electrons
Term
Optical Microscope
Definition
Uses lenses to bend beams of light
Term
1590
Definition

Zacharias Janssen

Put 2 lenses on a collapsing tube and saw it magnified 10x. Images were lager but not clearer

Term
1660
Definition

Robert Hooke

Studied cork with his own hand made microscope and saw tiny rooms he called cells

Term
1678
Definition

Anton van Leeuwenhoek

First person to observe microscopic organisms. He made 500 microscopes and only 10 survive today

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