Industry, WAS-ʿĀM
Industry, a group of productive enterprises or organizations that produce or supply goods, services, or sources of income. In economics, industries are customarily classified as primary, secondary, and tertiary; secondary industries are further classified as heavy and light.
Industry Encyclopedia Articles By Title
washer
washer, machine component that is used in conjunction with a screw fastener such as a bolt and nut and that usually......
water purification
water purification, process by which undesired chemical compounds, organic and inorganic materials, and biological......
waterpower
waterpower, power produced by a stream of water as it turns a wheel or similar device. The waterwheel was probably......
waterwheel
waterwheel, mechanical device for tapping the energy of running or falling water by means of a set of paddles mounted......
Watson, Thomas Augustus
Thomas Augustus Watson was an American telephone pioneer and shipbuilder and one of the original organizers of......
Watt steam engine
Watt steam engine, steam engine invented by Scottish engineer James Watt in 1769. The Watt steam engine is considered......
Wattle and daub
Wattle and daub, in building construction, method of constructing walls in which vertical wooden stakes (wattles)......
wave power
wave power, a form of renewable energy in which electricity is generated by harnessing the up-and-down motion of......
weaving
weaving, production of fabric by interlacing two sets of yarns so that they cross each other, normally at right......
Webb, William Henry
William Henry Webb was an American naval architect, one of the most versatile and successful shipbuilders of his......
welding
welding, technique used for joining metallic parts usually through the application of heat. This technique was......
well logging
well logging, field technique used in mineral exploration to analyze the geologic formations penetrated by a drill......
wet gas
wet gas, natural gas that contains an appreciable proportion of hydrocarbon compounds heavier than methane (e.g.,......
What causes acid rain?
The main contributors to acid rain are sulfur dioxide (SO2) and nitrogen oxides (NOx; the combination of NO and......
What is gum made of?
Chewing gum is made of a blend ingredients that together impart a desired chewiness and texture, complimented by......
What is the difference between cotton and polyester?
Cotton and polyester can both be made into fabrics, but they are otherwise very different. Cotton is a natural......
What Is the Difference Between Iron and Steel?
Iron and steel differ in their composition and properties. Iron (Fe) is a chemical element and the most abundant......
What is the difference between silk and satin?
The terms silk and satin are often used to describe fabrics, and though the fabrics can be distinct from one another,......
What Is the Importance of the Battle of Blair Mountain?
More than 10,000 Americans marched against a force armed with machine guns and aerial bombs. Combatants buried......
What is the Statue of Liberty made of?
The Statue of Liberty is constructed of 31 tons of 0.1-inch- (2.4-mm-) thick copper sheets that were hammered into......
What’s the difference between cement and concrete?
The words cement and concrete are often used interchangeably, but they’re not the same thing. Cement is a fine......
What’s the difference between jeans and denim?
The terms jeans and denim are often used interchangeably, but, strictly speaking, jeans refers to the garment and......
Why are beer bottles brown?
Beer bottles are often brown to protect the contents from light exposure, which can lead to unwanted changes in......
Why Are Some Metals More Conductive than Others?
All metals can conduct heat and electric current, but some are more effective conductors than others. What are......
Why did Roman concrete last longer than many modern materials?
What do the mythical monster Hydra, human bones, and Roman concrete all have in common? They are self-healing.......
Why Do Americans Celebrate the Fourth of July with Fireworks?
Fireworks have been part and parcel of U.S. Independence Day, the anniversary of the signing of the Declaration......
Why Is Fracking Harmful?
In the world’s pursuit of petroleum and natural gas, the technique of fracking—injecting a liquid at high pressure......
Why is milk pasteurized?
Pasteurization is a heating process used to make foods and beverages, including milk, safe for consumption. First......
Will a Suction Cup Work in Space?
No, it won’t. We’ve all seen pictures of astronauts walking in space, and they are always prevented from drifting......
wind turbine
wind turbine, apparatus used to convert the kinetic energy of wind into electricity. Wind turbines come in several......
windmill
windmill, device for tapping the energy of the wind by means of sails mounted on a rotating shaft. The sails are......
wire
wire, thread or slender rod, usually very flexible and circular in cross section, made from various metals and......
wire drawing
wire drawing, Making of wire, generally from a rod or bar. The wire-drawing process consists of pointing the rod,......
wolframite
wolframite, chief ore of tungsten, commonly associated with tin ore in and around granite. Such occurrences include......
wood
wood, the principal strengthening and nutrient-conducting tissue of trees and other plants and one of the most......
- Introduction
- Harvesting, Uses, Structure
- Uses, Structure, Properties
- Plywood, Laminated, Manufacturing
- Treatments, Structure, Properties
- Cellulose, Lignin, Sugars
- Strength, Structure, Uses
- Cellulose, Lignin, Tracheids
- Strength, Density, Hardness
- Hygroscopicity, Structure, Uses
- Thermal Properties
- Bark, Bark Products, Uses
wood tar
wood tar, liquid obtained as one of the products of the carbonization, or destructive distillation, of wood. There......
Woodcut
Woodcut, technique of printing designs from planks of wood incised parallel to the vertical axis of the wood’s......
wootz (steel)
wootz (steel), Steel produced by a method known in ancient India. The process involved preparation of porous iron,......
work hardening
work hardening, in metallurgy, increase in hardness of a metal induced, deliberately or accidentally, by hammering,......
worsted knitting yarn
worsted knitting yarn, wool yarn made of long-staple fibres that have been combed to remove undesirable short fibres......
wrench
wrench, tool, usually operated by hand, for tightening bolts and nuts. Basically, a wrench consists of a stout......
wrought iron
wrought iron, one of the two forms in which iron is obtained by smelting; the other is cast iron (q.v.). Wrought......
yarn
yarn, continuous strand of fibres grouped or twisted together and used to construct textile fabrics. A brief treatment......
Ziegler-Natta catalyst
Ziegler-Natta catalyst, any of an important class of mixtures of chemical compounds remarkable for their ability......
zinc
zinc (Zn), chemical element, a low-melting metal of Group 12 (IIb, or zinc group) of the periodic table, that is......
zinc group element
zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic table—namely,......
zinc processing
zinc processing, the extraction of zinc from its ores and the preparation of zinc metal or chemical compounds for......
Zinn, Walter Henry
Walter Henry Zinn was a Canadian-born nuclear physicist, who contributed to the U.S. atomic bomb project during......
zone melting
zone melting, any of a group of techniques used to purify an element or a compound or control its composition by......
ʿĀmiriyyah, Al-
Al-ʿĀmiriyyah, industrial district of Al-Iskandariyyah (Alexandria) muḥāfaẓah (governorate), northern Egypt. The......