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Tweezers come in a variety of tip shapes and sizes. [4] Blunt tip tweezers have a rounded end which can be used when a pointed object may get entangled, when manipulating cotton swabs, for example. Flat tip tweezers, pictured at right, have an angled tip which may be used for removing splinters. Some tweezers have a long needle-like tip which ...
By patterning the surface with gold microscopic islands it is possible to have selective and parallel trapping in these islands. The forces of the latter optical tweezers lie in the femtonewton range. [72] The evanescent field can also be used to trap cold atoms and molecules near the surface of an optical waveguide or optical nanofiber. [73] [74]
Photographs are the best tangible depictions of moments frozen in time. And thanks to current digital technology, anyone can capture a fascinating snapshot and share it with the online world for ...
A stanhope or stanho-scope is an optical device that enables the viewing of microphotographs without using a microscope. [ 1 ] [ 2 ] They were invented by René Dagron in 1857. [ 1 ] Dagron bypassed the need for an expensive microscope to view the microscopic photographs by attaching the microphotograph at the end of a modified Stanhope lens ...
The tweezer manufacturers simply added an ‘S’ to the style number to signify that the tweezer was made of Stainless Steel. In the 1950’s, the birth of the electronic industry spurred the need for a material that had less magnetism. Precision tweezers began popping up made of AISI 303/304 and AISI 316 Stainless Steel.
Image credits: Detroit Photograph Company "There was a two-color process invented around 1913 by Kodak that used two glass plates in contact with each other, one being red-orange and the other ...
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