Hydrargyrum is another name for which chemical element?
Chemical element of metals. Cu comes from Cuprum, Fe comes from Ferrum, Ag from Argentum. The symbols were not followed by a period (full stop) as with abbreviations. Later chemical elements were also assigned unique chemical symbols, based on the name of the element, but not necessarily in English. For example, sodium has the chemical symbol 'Na' after the Latin "natrium". The same applies to "W" (wolfram) for tungsten, "Fe" (ferrum) for iron, "Hg" (hydrargyrum) for mercury, "Sn" (stannum) for tin, "K" (kalium) for potassium, "Au" (aurum) for gold, "Ag" (argentum) for silver, "Pb" (plumbum) for lead, "Cu" (cuprum) for copper, and
Hydrargyrum medium-arc iodide lamp element on the lamp head cracking from thermal shock (though not completely blowing out or shattering). Proper safety procedures should always be followed when using HMI units, as they can be quite dangerous if misused. In 2014, journalist Kerry Sanders reported that he had been blinded for 36 hours as a result of overexposure to ultraviolet light from a malfunctioning HMI lamp. However, had the fixture included UV protection as is required by OSHA, the output from the lamp would have had no effect. Hydrargyrum medium-arc iodide lamp Hydrargyrum medium-arc iodide, or HMI, is the trademark name of Osram's brand