Search results
Results From The WOW.Com Content Network
The Lead Books were discovered in the caves of Sacromonte, a hillside outside the old city of Granada, Spain, between 1595 and 1606. They originally comprised 22 volumes of inscribed circular lead leaves, laced together with lead wire and bound within folded lead covers; although three volumes no longer survive.
Lead (/ l ɛ d /) is a chemical element; it has symbol Pb (from Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to ...
Lead interferes with metabolism of bones and teeth [188] and alters the permeability of blood vessels and collagen synthesis. [5] Lead may also be harmful to the developing immune system, causing production of excessive inflammatory proteins; this mechanism may mean that lead exposure is a risk factor for asthma in children. [188]
Plumbatae etymologically contain plumbum, or lead, and can be translated "lead-weighted [darts]". Martiobarbuli in this translation is mattiobarbuli in the Latin, which is most likely an assimilation of Martio-barbuli, "little barbs of Mars". The barb implied a barbed head, and Mars was the god of war (among other things).
Lead (Pb) 82 lead: Anglo-Saxon · Symbol Pb is from the Latin name plumbum, still visible in the English plumbing. [3] [56] Bismuth (Bi) 83 bisemutum: Neo-Latin from German "white mass" descriptive (colour) bisemutum is derived from German Wismuth, perhaps from weiße Masse, and means "white mass", due to its appearance. Polonium (Po) 84 ...
The World Health Organization (WHO) specifically notes that there is "no known safe blood lead concentration," and that even blood lead concentrations as low as 3.5 µg/dL (micrograms per ...
The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes [14] and some were also covered with lead. Lead was also used for piping and for making baths. [15] Plumbing reached its early apex in ancient Rome, which saw the introduction of expansive systems of aqueducts, tile wastewater removal, and widespread use of lead pipes.
The Latin for lead is plumbum. In medieval times, anyone who worked with lead was referred to as a plumber; this can be seen from an extract about workmen fixing a roof in Westminster Palace; they were referred to as plumbers: "To Gilbert de Westminster, plumber, working about the roof of the pantry of the little hall, covering it with lead ...