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about and understanding antennas. the goal is to present a comprehensive tutorial on antennas. in the spirit of einstein: "everything should be made as simple as possible, but not simpler." this website will strive to make antennas understandable, without unnecessary complexity. would you like updates...
electrodes for spark plugs, advanced laboratory equipment and in thermocouples. rhodium compounds also have catalytic uses in automotive catalytic converters. rhodium is used as a plating metal in jewelry production to enhance the whiteness of white gold . rhodium is available as metal and in compound...
were numbers and . both of these elements had been predicted by mendeleev, who had named them ekamanganese and dwimanganese respectively, but despite many attempts and declarations of discovery later deemed false, both elements remained elusive until . in that year, the team of walter noddack and ida...
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marketing authorisation decisions and assessment conclusions - biocides products register of marketing authorisation decisions and assessment conclusions list of leaflets published in english the agency's regular publications in english events chemical mixtures: challenges for research and risk assessment...
absorb free neutrons, which lends it to use in control rods in nuclear reactors. additionally, erbium alloys are used for their high specific heat capacity in cryocoolers for use near liquid helium temperatures. erbium is a rare earth element and can be found in any rare earth-containing mineral, but...