1-10 of 241 Hubssort by Hot Best Latest
80How is paint made?
Paint is a liquid material applied to a surface to form a hard, continuous film for protection or decoration. For instance, wooden houses often are painted to protect them from the weather, and metals often are painted to protect them from...
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70What Causes Earthquakes?
An earthquake is a number of rapid, consecutive, elastic waves in Earth. A major quake is usually preceded by a few foreshocks (small quakes) and followed by many minor aftershocks. The source of a quake may be shallow or up to 692km deep.
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74Wood Floor Finishing
All wood floors should be given some kind of finish. The correct surfacing of a floor will protect the fiber of the wood, improve the appearance, and make it easier to clean. To be satisfactory, the finish must insure economy of maintenance, so that...
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83What is Personality?
Many psychologists have differed on such questions as how personality is developed, how the various attributes and qualities of a person are combined, the extent to which heredity or environment influences the personality, and how best to describe and study personality differences among individuals. As a result, a number of different theories of personality have been developed.
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77How does your imagination work?
Imagination is the act of bringing back into the mind impressions or images not presently available to the sense. In the simplest form of imagination, memory, the images appearing in the mind are based wholly on something earlier perceived. It...
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74How Is Paper Made?
Paper is made of millions of tiny fibers. The fibers are cellulose, a substance from the cell walls of plants. The cellulose used in paper today comes mostly from trees. When the bark of a tree log has been...
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74The Art of Casting: Spinning and Spin-Casting
Spinning is the art of casting with an open-faced, fixed-spool reel. This reel hangs under the rod grip to balance the tackle for easy casting. Because the line uncoils from the fixed spool, less friction is...
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75Pennsylvania State University
Pennsylvania State University is a coeducational institution of higher learning, controlled by the Commonwealth of Pennsylvania. It is officially located at University Park, formerly part of State College, in...
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70What is a Marriage?
Marriage, one of the fundamental supports and regularizes of the structure of all societies. Marriage provides legal and ritual sanction for the founding of a family, a unit of social and economic importance; the formation of new alliances; and the procreation of children.
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72Vocational Education Training
In earliest times, most vocational training was done within the family. As time passed, craft guilds began setting standards of workmanship and training apprentices. With the increase in machine industry and mass production in the last few...
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