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X-ray tube. Discussion An X-ray tube is a narrow cylinder where a vacuum provided at each end an electrode rule, one negatively charged (the cathode) and the other positively (anode). An electric current heats the cathode ?at the same time ...
The analysis of strengths, weaknesses, opportunities and threats of a company gives a clear insight of their business and its future. It helps the managers change their existing strategies and policies to ensure a profitable business. It a...
gamma radiation is recorded within a certain energy interval which is typically from 0.3 to 3 MeV. The natural radioactivity from potassium, uranium and thorium bearing minerals varies in accordance with the mineral assemblage in the sedime...
not all stable. The excess energy contained in an unstable atom is released in one of a few basic particles and energetic waves. The Greek alphabet is used to name the particles (in the order of their discovery). ALPHA PARTICLES The alpha ...
Jackson Pollock was born in Wyoming, but was raised in Arizona and California. In the late 1920's Jackson helped his father with a surveying job on the north rim of the Grand Canyon. This tells a lot about whom Jackson Pollock was as an art...
Fahrenheit 451 (October 1953), his best and best-known novel (Bradbury, 16-149). Initially published by Ballantine with two other stories, "The Playground" and "And the Rock Cried Out," Fahrenheit 451 was not published separately until the ...
fire and burns. The world of Ray Bradbury's Fahrenheit 451 is a police state where agents of the government, known as “Firemen,” control the populace through the destruction of printed material. Books are publicly burned in spectacular rai...