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2. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   Thus, through binoculars with 10× magnification, the Moon appears to subtend an angle of about 5.2°. By convention, for magnifying glasses and optical microscopes, where the size of the object is a linear dimension and the apparent size is an angle, the magnification is the ratio between the apparent (angular) size as seen in the eyepiece and ...

3. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   A typical magnifying glass might have a focal length of 25 cm, corresponding to an optical power of 4 dioptres. Such a magnifier would be sold as a "2×" magnifier. In actual use, an observer with "typical" eyes would obtain a magnifying power between 1 and 2, depending on where lens is held.

4. High-power field - Wikipedia

   en.wikipedia.org/wiki/High-power_field

   Area per high-power field for some microscope types: Olympus BX50, BX40 or BH2 or AO: 0.096 mm 2 [1] AO with 10x eyepiece: 0.12 mm 2 [1] Olympus with 10x eyepiece: 0.16 mm 2 [1] Nikon Eclipse E400 with 10x eyepiece and 40x objective: 0.25mm 2 [2] Leitz Ortholux: 0.27 mm 2 [1] Leitz Diaplan: 0.31 mm 2 [1]

5. 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 ...

6. AOL-reviewed: The Renpho eye massager has almost 17,000 five ...

   www.aol.com/lifestyle/renpho-eyeris-review...

   Measuring 7.87" x 5.51" x 4.33" and weighing 1.46 pounds, it comes equipped with five built-in modes for a more contoured experience. The modes include: compression-heat, compression-heat ...

7. The Subsidy Gap - The Huffington Post

   projects.huffingtonpost.com/projects/ncaa/...

   There is more money than ever in college sports, but only a few universities have cashed in. More than 150 schools that compete in Division I are using student money and other revenue to finance their sports ambitions. We call this yawning divide the Subsidy Gap.