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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. Beyond its primary function of magnification, this simple yet ingenious tool serves a ...
But as one of its aphorisms reads, "The splinter in your eye is the best magnifying glass." So, as splinters left over from the smashed mirror of philosophy, the book's fragments try to illuminate clues as to humanity's descent into inhumanity in their immediate surroundings.
The invention of reading stones is often credited to Abbas ibn Firnas in the 9th century, [1] although the regular use of reading stones only began around 1000 AD. [ 2 ] [ 3 ] Early reading stones were manufactured from rock crystal (quartz) or beryl as well as glass, which could be shaped and polished into stones used for viewing.
It includes everything they need to unearth the 15 real gemstones—an excavation tool, magnifying glass, and excavation brush—plus it comes with a full-color guide to help them identify what ...
This October, we read The Mighty Red by Louise Erdrich, a novel that points a magnifying glass to a small town in North Dakota where a community of sugar farmers go through life—some haunted ...
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.
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