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  2. Slate - Wikipedia

    en.wikipedia.org/wiki/Slate

    Slate is a fine-grained, foliated, homogeneous, ... Under a microscope, the slate is found to consist of very thin lenses of quartz and feldspar (QF-domains) ...

  3. Microscope slide - Wikipedia

    en.wikipedia.org/wiki/Microscope_slide

    A microscope slide (top) and a cover slip (bottom) A microscope slide is a thin flat piece of glass, typically 75 by 26 mm (3 by 1 inches) and about 1 mm thick, used to hold objects for examination under a microscope. Typically the object is mounted (secured) on the slide, and then both are inserted together in the microscope for viewing. This ...

  4. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.

  5. Microscopy - Wikipedia

    en.wikipedia.org/wiki/Microscopy

    Antonie van Leeuwenhoek (1632–1723). The field of microscopy (optical microscopy) dates back to at least the 17th-century.Earlier microscopes, single lens magnifying glasses with limited magnification, date at least as far back as the wide spread use of lenses in eyeglasses in the 13th century [2] but more advanced compound microscopes first appeared in Europe around 1620 [3] [4] The ...

  6. Metamorphic rock - Wikipedia

    en.wikipedia.org/wiki/Metamorphic_rock

    Slate is an example of a foliated metamorphic rock, originating from shale, and it typically shows well-developed cleavage that allows slate to be split into thin plates. [19] The type of foliation that develops depends on the metamorphic grade. [20]

  7. Timeline of microscope technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_microscope...

    The company of Carl Zeiss exploited this discovery and becomes the dominant microscope manufacturer of its era. 1928: Edward Hutchinson Synge publishes theory underlying the near-field scanning optical microscope; 1931: Max Knoll and Ernst Ruska start to build the first electron microscope. It is a transmission electron microscope (TEM).

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