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Search results 2281 - 2290 of 3467 matching essays
- 2281: Solar Energy
- ... was invented, how it started, how it is used today, and how it is hoped to be used in the future. Solar energy has been used for a long time for example in 1772 a French scientist named Antoine Lavoiser constructed a solar furnace hot enough to melt most metals using a huge lens that focused sunlight into a small area. Using this he was able to create heat that at ...
- 2282: Saturn
- ... water. If Saturn was put in water it would float. Saturn is 764 times larger than earth and 96 times more massive. Saturn rotates completely on its axis every 10.2 hours and has a revolution period of 29.46 years. Saturn was first seen in 1610 by Galileo using one of his first telescopes. He did not understand that the rings were separate from the planet, so he described them ...
- 2283: Global Warming
- ... so? On the other hand, is global warming a theory and a bad theory at that? The hypothesis of this paper is that if any global warming exists, it is not a result of Industrial revolution, and overall it will be beneficial to man kind. Why did I choose this topic? There are two sides and this is the other side of the global warming debate, which is rarely discussed in ...
- 2284: Theory of History
- ... when the menace of defeat and reprisals for rebellion and treason cast dark clouds over the land. It was the brave risk taking and decision making that shaped the anarchists movement known as the American Revolution. So where did the concept of anarchy come from? Could it be inherent in human nature, a hold over from adolescence perhaps? Could it be that people are naturally opposed to being told what to ...
- 2285: Diffraction And The Debye-Scherrer Camera
- ... is called the phase. The above function x repeats itself whenever wt = n2p where n is an integer. The period T of the motion is the time it takes for the motion to complete one revolution or cycle. The unit for the period T is seconds. Since the function repeats itself every period T for any time t and it has already been written that we know that wt = 2p when ...
- 2286: Hydroponic Gardening
- ... Online. Internet. 28 Sept. 1998. Available: http://www.growinedge.com/pages/lighting.html. "Hydroponic Tutorial-Systems." Growingedge. (?date): n. pag. Online. Internet. 28 Sept. 1998. Available: http://www.growingedge.com/pages/hydro.html. "Hydroponics: the Revolution that Wasn't?" Mother Earth News. Feb. 1998: 36+. "Hydroponic Tutorial-Media." Growingedge. (?date): n. pag. Online. Internet. 28 Sept. 1998. Available: http://www.growingedge.com/pages/hmed.html. "Hydroponic Tutorial-Nutrients." Growingedge. (?date): n ...
- 2287: Renior - The Apple Seeder
- Pierre Auguste Renoir was a late nineteen- century French impressionist painter whose works were often ridiculed throughout his life, because of his sensuous celebration of women and nature. He was considered to be one of the most famous artists of his generation, due to ...
- 2288: The Bay of Pigs Invasion
- ... disagreed with the measures suggested and stopped the plan. Castro overthrew Batista in 1959. Originally Castro was not a communist either and even had meetings with then Vice-President Richard Nixon. Fearful of Castro's revolution, people with money, like doctors, lawyers, and the mafia, left Cuba for the United States. To prevent the loss of more capital Castro's solution was to nationalize some of the businesses in Cuba. In ...
- 2289: Cryogenics and the Future
- ... a Kelvin above absolute zero. There are also two main sciences used in cryogenics, and they are Superconductivity and Superfluidity. Cryogenics first came about in 1877, when a Swiss Physicist named Rasul Pictet and a French Engineer named Louis P. Cailletet liquefied oxygen for the first time. Cailletet created liquid oxygen in his lab using a process known as adiabatic expansion, which is a "thermodynamic process in which the temperature of ...
- 2290: Chromium
- ... be made from an alloy that is 80 percent nickel and 20 percent chromium. This metal operates at a temperature of about 1380 degrees Fahrenheit (750 degrees Celsius). Chromium was discovered in 1798 by the French chemist Nicolas Vauquelin. He chose the name chromium from the Greek word chroma, which means color. Chromium was a good choice of name, many chromium compounds are brightly colored. Rubies are red and emeralds are ...
Search results 2281 - 2290 of 3467 matching essays
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