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This the first microscope invented in 1959. Hans and Zacharias Janssen made the first microscope by placing two lenses in a tube.
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Robert Hooke had studied a thin piece of a cork, and found that there were cells. (pores)
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He invented the single-lens microscope.
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He confirmed that, "All living things are composed of cells and cell products".
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Schleiden wrote Contributions to Phytogenesis in 1838, when he said that the different parts of the plant organism are composed of cells.
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All living things are made up of cells, all cells come from pre-existing cells, cells are the main building blocks of cells, the well being of an organsim depends on the well-being of its cells.
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He stated that "Every cells comes form a pre-existig cells."
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An electron microscope is a type of microscope that uses a beam of electrons to light the specimen and produce a magnified image. Electron microscopes have a greater resolving power than a light-powered optical microscope, because electrons have wavelengths about 100,000 times shorter than visible light, and can achieve better than 50 pm resolution and magnifications of up to about 10,000,000x,
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these microscopes use a beam of x-rays to create an image. Because of a small wavelength, the image quality is higher than in optical microscopes. The maximum useful magnification is therefore also higher and is between the optical microscopes and electron microscopes.
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This type of Microscope can magnify up to 1 000 000 times! (STM) uses an electron beam not only to image things, getting resolution at the atomic level, but actually control them too.
