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Fineness. The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid ...
Thus, any single-stage photomultiplier is limited in gain. At the time the maximum first-stage gain that could be achieved was approximately 10 (very significant developments in the 1960s permitted gains above 25 to be reached using negative electron affinity dynodes). For this reason, multiple-stage photomultipliers, in which the photoelectron ...
Michigan (/ ˈ m ɪ ʃ ɪ ɡ ən / ⓘ MISH-ig-ən) is a state in the Great Lakes region of the Upper Midwest region of the United States.It borders Wisconsin to the northwest in the Upper Peninsula, and Indiana and Ohio to the south in the Lower Peninsula; it is also connected by Lakes Superior, Michigan, Huron, and Erie to Minnesota and Illinois, and the Canadian province of Ontario.
At the conclusion of its rate-setting policy meeting on March 20, 2024, the Fed left the federal funds target interest rate of 5.25% to 5.50% unchanged, marking the fifth consecutive time it’s ...
The number of Americans filing new claims for unemployment benefits rose last week to the highest level in more than eight months, offering more evidence that the labor market was steadily cooling.