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    Home » Interesting Facts about Glass » The Evolution of the Microscope » The Evolution of the Microscope

    The Evolution of the Microscope


    In the middle of the 18th century, the English optician and glass expert, Dollond, managed to eliminate the shortcomings of the first microscopes. He glued two lenses, collective one and diffusing, which were made of different kinds of glass. The result was a magnifying glass that no longer gave a colored glow. Now it was possible to build microscopes with many magnifying glasses and a very large magnification. Soon, good microscopes gave a magnification of a thousand times. The microscope has now become, as it were, the eye of a scientist.
     
    Levenguk microscope
    Levenguk microscope
     A biologist cannot do without a microscope: how else does he learn the secrets of the cell? But all life consists of cells - a person and a lizard, and a flower. The doctor fights diseases that are caused by bacteria, and they are so small that they can only be seen through a microscope. So all modern medicine can be said to owe its existence to a microscope. A physicist, chemist, geologist, and mineralogist also cannot do without a microscope: in order to study a substance properly, it is imperative to understand the structure of its smallest particles - crystals.


    It is impossible to tell about all the merits of a microscope. No science can do without his assistance now. And this is understandable: it shows the structure of matter, its innermost secrets. That is what significance a glass lens in combination with a magnifier assumed.

    Electron microscope
    Electron microscope
    However, no matter how good is a microscope with glass optics, it cannot give a magnification beyond a certain limit. Scientists tend to penetrate deeper and deeper into the world of infinitely small organisms and the structure of matter. To achieve a magnification of 20 thousand times or more, scientists succeeded by creating an electron microscope. Glass lenses in it are replaced by electromagnetic ones, and light rays are replaced by a stream of electrons emitted by an electron gun.

    Margaret
    Interesting Facts about Glass The Evolution of the Microscope
    Thursday, August 22, 2019

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