U-X-L encyclopedia of science by Rob Nagel

By Rob Nagel

Contains six hundred issues within the lifestyles, earth, and actual sciences in addition to in engineering, expertise, math, environmental technology, and psychology.

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The fission of a uranium-235 nucleus releases very large amounts of energy, additional neutrons, and two large fission products. The fission products are the atomic nuclei formed when a fissionable nucleus such as uranium-235 breaks apart. The fission of uranium-235 nuclei has become extremely important in the manufacture of nuclear weapons and in the operation of nuclear power plants. In fact, these applications account for the primary applications of uranium in everyday life. U•X•L Encyclopedia of Science, 2nd Edition 2 5 Actinides Adaptation Thorium Thorium is a soft metal with a bright silvery luster when freshly cut.

Industrial applications of abrasives Industry uses abrasives in three basic forms. They can be bonded to a material to form solid tools such as grinding wheels, cylinders, rings, cups, segments, or sticks. They can be attached to paper, cloth, plastic, or other material, as is done with sandpaper. Or they may be used in a loose form, as when a spray of sand is used to clean the surface of a building during sandblasting. Most industrial applications of abrasives fall into one of four general categories.

Treating the land with calcium oxide neutralizes acids remaining in the soil and restores its fertility. Neutralization is also used to deal with environmental problems. Gases produced in factories, power generating plants, and other industrial facilities are usually acidic. When they escape into the air, they react with water to form acid rain. Scrubbers that contain bases can be attached to the inside of smokestacks in such plants to neutralize acids in escaping gases. Treatment with acids or bases is also used to neutralize hazardous chemicals produced by a variety of manufacturing operations.

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