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  2. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    There are two basic types of optical microscopes: simple microscopes and compound microscopes. A simple microscope uses the optical power of a single lens or group of lenses for magnification. A compound microscope uses a system of lenses (one set enlarging the image produced by another) to achieve a much higher magnification of an object.

  3. 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 ...

  4. File:Diagram of a two-photon excitation microscope en.svg

    en.wikipedia.org/wiki/File:Diagram_of_a_two...

    Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

  5. File:Binocular compound microscope, Carl Zeiss Jena, 1914 ...

    en.wikipedia.org/wiki/File:Binocular_compound...

    This is a featured picture' on Wikimedia Commons (Featured pictures) and is considered one of the finest images. See its nomination here. This image has been assessed under the valued image criteria and is considered the most valued image on Commons within the scope '. See its nomination here.

  6. Category:Microscopes - Wikipedia

    en.wikipedia.org/wiki/Category:Microscopes

    Campani compound microscope; Cathodoluminescence microscope; Coherent diffraction imaging; Contrast transfer function; Counter-scanning; Cryomicroscopy; D. Dark-field ...

  7. Pete Hegseth vows he won't drink 'a drop of alcohol' if ...

    www.aol.com/pete-hegseth-vows-wont-drink...

    President-elect Donald Trump's nominee to be Secretary of Defense Pete Hegseth arrives for a meeting with U.S. Sen. Joni Ernst (R-IA) at the U.S. Capitol on December 4, 2024 in Washington, DC.

  8. Exit pupil - Wikipedia

    en.wikipedia.org/wiki/Exit_pupil

    Since the eye's pupil varies in diameter with viewing conditions, the ideal exit pupil diameter depends on the application. [1] An astronomical telescope requires a large exit pupil because it is designed to be used for looking at dim objects at night, while a microscope will require a much smaller exit pupil since an object being observed will be brightly illuminated.

  9. The best stocking stuffers for women - AOL

    www.aol.com/lifestyle/best-stocking-stuffers...

    We found all the best stocking stuffers for women, from skincare favorites like eye masks to gift cards and tea towels.