Latin influence in English entered English, or in what form. Some words have come into English from Latin more than once, through French or another Romance language at one time and directly from Latin at another. Thus we have pairs like fragile/frail, army/armada, corona/crown, ratio/reason, and rotund/round. The first word in each pair came directly from Latin, while the second entered English from French (or Spanish, in the case of "armada"). In addition, some words have entered English twice from French, with the result that they have the same source, but different pronunciations reflecting changing pronunciation in French, for example chief/chef (the former a
High-intensity discharge lamp High-intensity discharge lamp High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. This tube is filled with noble gas and often also contains suitable metal or metal salts. The noble gas enables the arc's initial strike. Once the arc is started, it heats and evaporates the metallic admixture. Its presence in the arc plasma greatly increases the intensity of visible light produced by the arc for a given power input, as the