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  2. Zograscope - Wikipedia

    en.wikipedia.org/wiki/Zograscope

    A zograscope is an optical device for magnifying flat pictures that also has the property of enhancing the sense of the depth shown in the picture. It consists of a large magnifying lens through which the picture is viewed. Devices containing only the lens are sometimes referred to as graphoscopes.

  3. Coddington magnifier - Wikipedia

    en.wikipedia.org/wiki/Coddington_magnifier

    A Coddington magnifier is a magnifying glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the rays to those close to the axis, which minimizes spherical aberration. This allows for greater magnification than a conventional magnifying glass, typically 10× up to 20×. Most single lens ...

  4. Magnifying glass - Wikipedia

    en.wikipedia.org/wiki/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 create a hot spot at the focus for fire starting.

  5. These are the best deals to shop at Walmart right now - AOL

    www.aol.com/lifestyle/these-are-the-best-deals...

    These are the best deals to shop at Walmart right now — save big on early Memorial Day sales ... Patagonia's Winter Sale dropped even lower prices up to 50% off; AOL. The 20 best sales to know ...

  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. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    The earliest microscopes were single lens magnifying glasses with limited magnification, which date at least as far back as the widespread use of lenses in eyeglasses in the 13th century. [ 8 ] Compound microscopes first appeared in Europe around 1620 [ 9 ] [ 10 ] including one demonstrated by Cornelis Drebbel in London (around 1621) and one ...

  8. Dome magnifier - Wikipedia

    en.wikipedia.org/wiki/Dome_magnifier

    A dome magnifier is a dome-shaped magnifying device made of glass or acrylic plastic, used to enlarge words on a page or computer screen. They are plano-convex lenses : the flat (planar) surface is placed on the object to be magnified, and the convex (dome) surface provides the enlargement.

  9. Walmart just slashed prices on tons of holiday gifts — save ...

    www.aol.com/lifestyle/walmart-just-slashed...

    Walmart just slashed prices on tons of holiday gifts — save up to 80% on Shark, Henckels, Pyrex and more. ... Pyrex Simply Store Glass Food Storage & Bake Container Set. $30 $40 Save $10.

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