Microscope Basics: Parts, History (PDF) | Science

Okay, here's the conversion of the images into a structured markdown format: ### The Microscope The image shows a diagram of a microscope with the following labeled parts: * Ocular Lens(Eyepiece) * Body Tube * Revolving Nosepiece * Objectives * Stage Clips * Diaphragm * Light Source...

Okay, here's the conversion of the images into a structured markdown format: ### The Microscope The image shows a diagram of a microscope with the following labeled parts: * Ocular Lens(Eyepiece) * Body Tube * Revolving Nosepiece * Objectives * Stage Clips * Diaphragm * Light Source * Arm * Stage * Coarse Adjustment Knob * Fine Adjustment Knob * Base Total Magnification = Magnification of eyepiece lens x Magnification of objective lens ### Optical Parts * Eyepiece * Objectives They consist of lenses that refract light to magnify the specimen. ### Mechanical Parts * Clips: Holds the slide in place. * Base: Provides stability. * Arm: Used for carrying and support. * Focusing knob: Adjust focus. * Body tube: Supports the eyepiece and prevents stray light from distorting the image. ### Illuminating Parts * Mirror * Diaphragm * Condenser Their primary function is to focus light on the specimen for clear viewing. ### History * Anton Van Leeuwenhoek (1632 - 1723) * Made a very powerful single-lens MS * First to see bacteria, yeast and tiny organisms in water * Called them "animalcules" * Robert Hooke (1635 - 1703) * Invented the compound MS with 2 lenses * First to use the word "cell" after looking at a cork. * Max knott & Ernst Ruska (1931) * Created the electron MS, which uses electrons instead of light. * Can magnify up to 1 million times, but can't look at living things. ### Types * TEM: Shows 2D images of inside structures * SEM: Shows 3D images of surfaces