Mechanisms of harm were better understood, lead blindness was documented, and the element was phased out of public use in the United States and Europe. in a certain direction, channel, or the like, to act as chief officer of; command the operations of (a military unit). The lead monoxide is thereby reduced to metallic lead, in the midst of a slag rich in lead monoxide. Well, I think that leads me to the real point. The action of a tooth, as a tooth of a wheel, in impelling Parallel Lives Meaning – The concept of parallel lives firstly appeared in 1998. [208][209] Lead is still used in statues and sculptures,[r] including for armatures. [84] With carbon, lead forms organolead compounds similar to, but generally less stable than, typical organic compounds[85] (due to the Pb–C bond being rather weak). Never wait for the right time to begin a right thing; else you will always be waiting. There are numerous definitions of success available in this world. tubes, sheets, bullets, etc. This website uses cookies to improve your experience. Copyright © 2010 by Try this and see the magical rise in your bank-balance as a result of intelligent choices you would make. Make the decision to live a healthier lifestyle. Leading the horse, Evandar walked to the door. According to this theory, every action made in this physical life, will create a parallel life. You can spend your time doing the things that you love and delegate the things that you do not love. Malleability describes how easily it deforms under compression, whereas ductility means its ability to stretch. Information about Lead in the free online Tamil dictionary. another tooth or a pallet. Working It Out: Did the education system fail us? Love others but make sure no one loves you more than you love yourself. A further sesquioxide, Pb2O3, can be obtained at high pressure, along with several non-stoichiometric phases. [119] Lead was used in the Ancient Chinese royal court as a stimulant,[119] as currency,[121] and as a contraceptive;[122] the Indus Valley civilization and the Mesoamericans[119] used it for making amulets; and the eastern and southern African peoples used lead in wire drawing. [299], This article was submitted to WikiJournal of Science for external academic peer review in 2019 (reviewer reports). According to me, success is living a happy and fulfilled life, writes bestselling author Siddhartha Sharma. Last 10 years [238], Lead has no confirmed biological role, and there is no confirmed safe level of lead exposure. [193], Alternatively to the pyrometallurgical processes, very pure lead can be obtained by processing smelted lead electrolytically using the Betts process. To go or to be in advance of; to precede; hence, to be In low concentrations, as well as acting as a lubricant, the globules hinder the formation of swarf as the alloy is worked, thereby improving machinability. [q], Lead's high density and resistance to corrosion have been exploited in a number of related applications. Incorporate at least 20 minutes of exercise into your daily routine. (3 July 2018), Henry Hoff; Ian Alexander; W. Brian Whalley; Florian Weller (eds. Definition of Lead in the Online Tamil Dictionary. Last 50 years [171], Further evidence of the threat that lead posed to humans was discovered in the late 19th and early 20th centuries. [145] Its status in Roman society was low as it was readily available[146] and cheap. [186], Contrary to popular belief, pencil leads in wooden pencils have never been made from lead. [111], The modern English word "lead" is of Germanic origin; it comes from the Middle English leed and Old English lēad (with the macron above the "e" signifying that the vowel sound of that letter is long). [152][153] The largest production of lead occurred in South and East Asia, especially China and India, where lead mining grew rapidly.