microscopes
...ver, he was not the only person to add more improvements to the microscope. Anton van Leeuwenhoek, a wine assayer, surveyor, cloth merchant, minor public official, and inventor. He made simple (one lens) microscopes. He did not create the first microscope, but the one he did build was the best one during that time period. Leeuwenhoek was the first person to describe bacteria, protozoans, and helped to prove the theory of blood circulation. There are many parts to a compound microscope. These parts include the eyepiece, objectives, fine adjustment knob, power switch, stage, diaphragm, base, body tube, nosepiece, stage clips, stage stop, coarse adjustment knob, aperture, arm, and light source. All of these parts play a significant source on how the microscope works. The microscope works in one basic way. The clips on the microscope's flat stage hold the slide in place. A mirror at the bottom of the microscope reflects light rays up to the slide being viewed through a hole in the stage. . Objective lenses magnify the image that is made even larger when seen through the eyepiece lenses. The number marked on the objective lens tells us how many times the organism looked at on the slide is being magnified. To focus more you can move the objective lens closer to or farther from the organism. The objective lens is usually a compound lens, a combination of two lenses made from different kinds of glass. This is how the compound microscope works. You should take good care of m...