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Gold is a heavy metal in a group known as the transition metals. Gold is also known as a precious metal (as are platinum and silver). Large amounts of gold are still used in the manufacture of coins, medals, jewelry, and art. Gold also has a number of uses in industry, medicine,...
Halogens display physical and chemical properties typical of nonmetals. They have relatively low melting and boiling points that increase steadily down the group. Near room temperature, the halogens span all of the physical states: Fluorine and chlorine are gases, bromine is a liquid, and iodine...
Name any three types of welding processes that are applied in the joining of metals.State the three platforms of computer-aided design in manufacturing engineering.Name the two electrical circuits used in strain gauge circuits in stress analysis in mechanical engineering....
This Eng- lish chemist described his discovery in the Philosophical Transactions of the Royal Soci- ety of London in 1804, in the article entitled On two metals, found in the black powder remaining after the solution of platina (Tennant 1804). The interesting history (differing in details from...
largest application area is mainly used to improve the adhesion between two materials with different properties. It forms a silane elastic bridge between the two interfaces, thereby improving the mechanical, electrical insulation and anti-aging properties of the product. With the rapid development of ...
Name any three types of polarized light as used in basic optics in stress analysis in mechanical engineering. Name any three types of welding processes that are applied in the joining of metals. Name any two desirable properties of a gauging system used in mechanical engineering Name the three ...
ductilimeternoun(n.) An instrument for accurately determining the ductility of metals. ductilitynoun(n.) The property of a metal which allows it to be drawn into wires or filaments. noun(n.) Tractableness; pliableness. ductionnoun(n.) Guidance. ...
Nameplates, versatile in their composition, are crafted from an array of materials, with each industry favoring different options based on specific needs and aesthetics. In professional office settings, nameplates are often fashioned from plastic, wood, or various metals, including aluminum, aluminum al...
He then studied the properties of that gas. He found that flames burned brightly in the gas. He also found that animals could live when placed in the gas. Without knowing it, Scheele had discovered oxygen. (See sidebar on Scheele in the chlorine entry in Volume 1.) About two years ...