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Search results 6431 - 6440 of 14167 matching essays
- 6431: Planting Flowers
- ... types of flowering plants and discuss the basic requirements needed for healthy happy flowers. While I am mainly interested in wild flowers, I will also include some garden varieties. Flowers like Pennsylvania, thanks to the Great Lakes, Chesapeake Bay, and the Atlantic Ocean we have plenty of humidity and rainfall, and if there is one thing flowers love, it is water. Although winters are long, the growth gets underway, it progresses ... nothing of the plants shows aboveground. In such a case, plant two wildflowers, one for the spring and one for the rest of the growing season" (26). "Growing perennial wildflowers from seed can be a great challenge, but is defiantly not for the person who expects quick returns. Many wildflower seeds are slow to germinate, and once sprouted are slow to mature. Most wildflower seeds are best planted in the fall ...
- 6432: Nuclear Power: Worth the Risks?
- ... sun on any given day is far greater than that consumed by Americans in any given year. To harness this and turn it into something that is much needed and very useful would be a great alternative to nuclear power plants. Having no moving parts, producing no pollution, consuming no fuel, and operating at environmental temperatures, solar collectors are very clean and efficient. They produce a practically free form of electricity ... oil monopolies buy out smaller companies which are developing feasible solar power plants to keep them from being implemented and to maintain the hold on the fossil fuel market. Solar energy and thermonuclear fusion are great alternatives to the nuclear reactor but these will not be mass implemented until well into the next century. That does not solve the problem for today. To keep the number of nuclear power plants as ...
- 6433: Creation, Evolution and Intervention: Which Theory is Correct?
- ... known as, survival of the fittest, and can be summarized in the following statement. When environmental conditions change populations must change in order to be fit and thus survive. Understanding the evolutionary process depends a great deal upon the interpretations of the fossil record, which many consider to be incomplete because many fossils can not be found. For this reason, there are many different views about what the fossil record states ... other comparable ancient literature, creation is a theme used to explain how human beings came to earth. In the bible and most other creation stories from ancient religions, the universe is said to be a great mess in which order was introduced by a God. In the bible, it states that the creator cleaned up the world and organized everything such as the stars and the day from night. In many ...
- 6434: Black Friday: Tornado in Canada
- ... die when they see,or hear of a tornado heading their way. Although all the details of the formation of a tornado are not yet understood, it is known that tornados are the result of great instability in the atmosphere and often appear during severe thunderstorms (see appendix #1 for a scientific explaination on how it really starts). Strong updrafts present in severe thunderstorms result in a rotational momentum. Falling rain ... winds generally move counterclockwise and the funnel can move slowly or at about 100/ft per second. Eventually the tornado becomes fragmented and dissipates causing the end of the tornado. Tornados are the cause of great destruction and devistation in the area in which they occur. For example the Tri-State Tornado of 1925 occured in the Kansas, Oklahoma, and Texas States. This tornado was one of the largest tornados recorded ...
- 6435: Nuclear Weapons
- ... at thousands of sites around the country. United States nuclear weapons production facilities have left a mess that, if it can be cleaned up at all, will take decades and billions of dollars. Also, a great amount of United States citizens were needlessly exposed to high levels of radiation. Those most affected were the workers at the Atomic Energy Commission (Department of Energy) weapons facilities (Schwartz 5). Another quarter of a ... repeat the horror of that. Even before the nuclear bomb had been perfected, world war had become spectacularly costly and destructive, killing over fifty million people world wide (Cameron 66). Nuclear weapons are weapons of great destruction. Our government wastes over thirty-three billion dollars a year of our tax money. Also, nuclear weapons pose serious health risks to those around them, including the citizens of the United States. There has ...
- 6436: Radio Waves
- ... surface. Sky waves spread up into the sky . When they reach the layer of atmosphere called the ionosphere, they may be reflected back to earth . This reflection enables AM radio waves to be received at great distances from the antenna. Frequency modulation station generally reach audiences from 15 to 65 miles ( 24-105km) away. Because of frequency of the carrier wave is modulated, rather than amplitude, background noise is reduced. In ... are broadcast by AM transmitter : ground waves, which spread out horizontally from the ground and travel along the earth's surface, and air waves, which travel up into the ionosphere, allows AM transmission to travel great distances. AM radio stations with powerful transmitters can reach listeners as far as 1000 miles ( 1600 km ) away. FM radio waves also travel horizontally and skyward. However , due to the higher frequency of the carrier ...
- 6437: Black Holes
- ... a black hole is, we must first take a look at the basis for the cause of a black hole. All black holes are formed from the gravitational collapse of a star, usually having a great, massive, core. A star is created when huge, gigantic, gas clouds bind together due to attractive forces and form a hot core, combined from all the energy of the two gas clouds. This energy produced is so great when it first collides, that a nuclear reaction occurs and the gases within the star start to burn continuously. The hydrogen gas is usually the first type of gas consumed in a star and then ...
- 6438: The Application of Science to Engineering
- ... to the industrialization and prosperity of a country. Although engineering improvements sometimes come through trial and error they are most often achieved by applying pure science and mathematics to engineering. Canadian engineering was improved a great deal in this manner. The engineering associated with building materials and long distance communication, two of Canada's most important industries, was improved through the application of pure science. One of the most important scientific ... an englishman, Micheal Faraday, in 1831. This discovery was applied to mechanical generation of electricity which made tremendous improvements to communications throughout Canada. The electric telegraph, first discovered in 1837 by Samuel Morse, was a great improvement over the mechanical telegraph which required the use of a telescope and was much less effective. It encodes messages electrically, transmits them over facilities such as copper wire, coaxial cable, and fibre optics to ...
- 6439: Ocean Environment
- ... These currents carry oxygen to the a ysphotic zone, where because of the absence of light, photosynthesis can not occur. They also remove large amounts of nutrients from the euphotic zone and transport them for great distances throughout the deep ocean. The current patterns in estuaries are also generally formed in response to density differentials. Depending on the amount of marine and fresh water that enters these systems, estuaries may be ... is still attached to it. An example of fringing reefs are the reefs bordering the Florida Keys. A barrier reef is separated from the island or mainland, and may be a few miles distant. The Great Barrier reef is over a thousand miles long, forming an off-shore break-water for the east coast of Australia. An atoll is a circular surrounding a lagoon, often not associated with any obvious land ...
- 6440: Natural Disasters
- ... the tropics around warm water. It starts as a disorganized storm in the ocean. When it starts to become more organized, it will be put into the first of three classifications. The classification is tropical depression. The National Hurricane Center will get a letter to help classify the storm. When the winds of the storm reach 40mph it will go into the second classification, tropical depression. The service will give it a name at this point. The name is pre-determined based on a list that recycles every six years. The list of names for the next few years are on ...
Search results 6431 - 6440 of 14167 matching essays
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