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You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...
An infrared spectroscopy correlation table (or table of infrared absorption frequencies) is a list of absorption peaks and frequencies, typically reported in wavenumber, for common types of molecular bonds and functional groups. [ 1 ][ 2 ] In physical and analytical chemistry, infrared spectroscopy (IR spectroscopy) is a technique used to ...
John Thornton chart showing "Hudson Straights commonly call'd the Norwest Passage" (JCB Library) Thornton, "the most competent and distinguished chart-maker in England" [1] was also a surveyor and an engraver. So far as is known, it was in England a unique combination of skills. [39] Thornton worked in the Minories just outside the City limits.
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A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...
Particle decay. In particle physics, particle decay is the spontaneous process of one unstable subatomic particle transforming into multiple other particles. The particles created in this process (the final state) must each be less massive than the original, although the total mass of the system must be conserved.
Radius gauge. A radius gauge, also known as a fillet gauge, [1] is a tool used to measure the radius of an object. [2] Radius gauges require a bright light behind the object to be measured. The gauge is placed against the edge to be checked and any light leakage between the blade and edge indicates a mismatch that requires correction. [3]
Duncan Phyfe (1768 – 16 August 1854) [1] was one of nineteenth-century America's leading cabinetmakers.. Rather than create a new furniture style, he interpreted fashionable European trends in a manner so distinguished and particular that he became a major spokesman for Neoclassicism in the United States, influencing a generation of American cabinetmakers.