AUTOMOBILE ELECTRICAL SYSTEMS |
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An automotive electrical systems consists of several different components that provide the electrical power needed to start the car and provides all the functionality in the passenger compartment.
Lighting systems, battery and charging system, alternator, grounding system, all power and features like horn, radio, power windows, and door locks, security, wind shield wipers, and more.....
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CHEMICALS / ELEMENTS |
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A chemical element, often called simply element, is a chemical substance that cannot be divided or changed into other chemical substances by any ordinary chemical technique. The smallest unit of this kind of chemical substances is an atom, and the term "atom" is typically used to refer to atoms of particular elements. An element is a class of substances that contain the same number of protons in all its atoms. Chemicals are made from Chemical Elements.
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CHEMISTRY |
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Chemistry (derived from alchemy) is the science of matter at or near the atomic scale. In this pursuit chemistry deals with the properties of such matter, the tranformations of matter and the interactions of matter with other matter and with energy.
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ENGINEERING - GENERAL |
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Engineering is the application of scientific and technical knowledge to solve human problems. Engineers use imagination, judgement and reasoning to apply science, technology, mathematics, and practical experience. The result is the design, production, and operation of useful objects or processes.
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ENGINEERING - MECHANICAL |
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Mechanical engineering is a very broad field of engineering that involves the application of physical principles for analysis, design, manufacturing, and maintenance of mechanical systems. The system can be as simple as the design of a chair for comfort or as complex as the operations of a turbocharged engine for speed. It can be as small as the manufacturing of a nano-sized gear or as large as the structure of a supertanker used to carry oil around the world.
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LEAD |
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Lead is a chemical element in the periodic table that has the symbol Pb (L. plumbum) and atomic number 82. A soft, heavy, toxic and malleable poor metal, lead is bluish white when freshly cut but tarnishes to dull gray when exposed to air. Lead is used in building construction, lead-acid batteries, bullets and shot, and is part of solder, pewter, and fusible alloys. Lead has the highest atomic number of all stable elements. (But see the article on Bismuth, which has a half life so long it can be considered stable.)
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