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  2. Magnifying glass - Wikipedia

    en.wikipedia.org/wiki/Magnifying_glass

    A pen seen through a magnifying glass Jim Hutton as detective Ellery Queen, posing with a magnifying glass. A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the Sun's radiation to ...

  3. File:Magnifying glass 01.svg - Wikipedia

    en.wikipedia.org/wiki/File:Magnifying_glass_01.svg

    More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. Central Forensic Science Laboratory

  4. File:Magnifying glass icon.svg - Wikipedia

    en.wikipedia.org/wiki/File:Magnifying_glass_icon.svg

    Printable version; Page information; Get shortened URL; Download QR code; In other projects ... Magnifying glass icons: File usage. The following 10 pages use this ...

  5. Grandma's Reading Glass - Wikipedia

    en.wikipedia.org/wiki/Grandma's_Reading_Glass

    Grandma's Reading Glass is a 1900 British silent trick film, directed by George Albert Smith, featuring a young boy who borrows a huge magnifying glass to focus on various objects. The film was shot to demonstrate the new technique of close-up .

  6. Magnification - Wikipedia

    en.wikipedia.org/wiki/Magnification

    The postage stamp appears larger with the use of a magnifying glass. Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something.

  7. Mirror - Wikipedia

    en.wikipedia.org/wiki/Mirror

    A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...

  8. History of optics - Wikipedia

    en.wikipedia.org/wiki/History_of_optics

    It has been proposed that glass eye covers in hieroglyphs from the Old Kingdom of Egypt (c. 2686–2181 BCE) were functional simple glass meniscus lenses. [40] The so-called Nimrud lens, a rock crystal artifact dated to the 7th century BCE, might have been used as a magnifying glass, although it could have simply been a decoration. [41] [42 ...

  9. Glass - Wikipedia

    en.wikipedia.org/wiki/Glass

    Glass is an important material in scientific laboratories for the manufacture of experimental apparatus because it is relatively cheap, readily formed into required shapes for experiment, easy to keep clean, can withstand heat and cold treatment, is generally non-reactive with many reagents, and its transparency allows for the observation of ...