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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]
For instance, Clauss made surgical scissors for eye operations, heavy-duty metal cutting shears, poultry shears for gutting chickens, and specialty items such as anti-acid, anti-magnetic tweezers for the electronics industry.
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 Keith Morrison Taking the phrase of "putting it under the microscope" quite literally, the Nikon Small World contest recently announced its winners for 2014. Now in its 40th year, the contest ...
DeWalt launched a Made in the USA initiative in 2013, and today it boasts manufacturing facilities in seven American cities. Most recently, the company opened a plant in Greenfield, Indiana, in 2015.
Arthur Ashkin (September 2, 1922 – September 21, 2020) was an American scientist and Nobel laureate who worked at Bell Labs.Ashkin has been considered by many as the father of optical tweezers, [1] [2] [3] for which he was awarded the Nobel Prize in Physics 2018 at age 96, becoming the oldest Nobel laureate until 2019 when John B. Goodenough was awarded at 97.
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