... 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 their destination where they are decoded into their original form. Combinations of long and short bursts of electric current are sent through a circuit thereby encoding each letter of the alphabet. More efficient transmission facilities were developed as the mining industry developed. The discovery of electricity sped up the development of mining through electric lighting and better machinery and ventilation, which led to better materials for wires and cables. Telegraph lines were set up along the C ...
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... a relatively fast pace while its track gradually turned toward the west-northwest. When Andrew reached the north-central Gulf of Mexico, the high pressure system to its northeast weakened and a strong mid-latitude trough approached the area from the northwest. Steering currents began to change. Andrew turned toward the northwest and its forward speed decreased to about 8 kt. The hurricane struck a sparsely populated section of the south-central Louisiana on the 26th. The landfall location is about 20 n mi west-southwest of Morgan City. Andrew dropped sufficient rain to cause local floods even though the hurricane was relatively small and generally moved rather fast ...
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... up with a theory that most scientist believe it to this day. this is called the theory of evolution. His book was called “The Origin of Specie.” Alfred R. Wallace, came out with a theory that was almost identical to Darwin’s theory. Darwin’s theory was much more developed and better known. For example Darwin pointed out that farmers would take certain qualities from two different plants and mix them together and it would produce the desired plant. He believed this happened in nature also and he called it “the survival of the fittest” or “natural selection.” There are a lot of different creation stories a ...
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... hours, they would have to close a gap of four thousand miles at an altitude of 245 miles while traveling at 17,500 miles per hour, only to have to move within three inches and two degrees of a quickly moving, very fragile object in space. One small thrust of a poorly aligned engine could cost one of four space-worthy shuttles and the world's first and only long-term space station. Docking was over with soon, and was followed by the cosmonauts of Mir greeting the astronauts of Atlantis. Gifts of flowers, candy and fruit were given by the Americans, who in return, following a Russian tradition, received gifts of bread and salt. Knowing the importance of the missio ...
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... Some cases of red tides do not show any change in the color of the water at all. This makes a red tide very hard to predict or find. Red tides often occur when fresh water runoff creates a stratified surface layer above colder nutrient-rich waters. "heavy rains might have helped the red tides develop by pouring fresh water and nutrients into surrounding sea waters," (New York Times: Sept. 19, 1996) Fast growing algae quickly strip away nutrients in the upper layer, leaving nitrogen and phosphorus only below the interface of the layers, called the pycnocline. Many swim at speeds of 10 meters a day, and some go through vertical migration rising to the top of t ...
... food gathering raids become more intense. The hunting raids made by ants are carried out by "armies" of thousands of ants and set out from the bivouac in various directions. They form two or three parties going out simultaneously in different directions for 100 yards or more. In the U.S. army we attack countries in different areas to weaken the force we are attacking. We send out thousands of troops in various directions and try to surround the source of the location being attacked. For instance, if there are several locations that needed to be attacked to weaken the enemy, like their weapon storage or air force base, we send several sets of troops to attack e ...
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... in lab dishes" to help preserve human life. In the following paragraphs, he goes on to write about the "hasty legislation" that could possibly have negative long-term effects on the future of because of the bad wording going into some of the laws. Many are afraid that the rich and famous might take advantage of the opportunity to generate copies of themselves. Nash points out that even though the possibility is there, the people who could grow full human clones "aren't going to be doing it." Nash recognizes that by individual cells for the purpose of eliminating life-threatening diseases many people could be benefited. Doctors could obtain healthy ce ...
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... alcohol, is a depressant and acts on every cell in the human body. Due to this, the central nervous system, along with the pleasure centers of the brain, are affected resulting in a feeling of euphoria and a sense of well being. After repeated exposure, the brain becomes dependent on this drug to unburden itself whenever it feels the compulsion. Several factors that contribute to alcoholism are the individual’s psychology, genetics, culture, and the individual’s response to physical pain. In order to understand alcoholism, we must first define what scientists classify alcoholism to be. Moderate drinkers drink equal to at least two drinks a day. An at-risk person ...
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... diet. Drug testing on animals is not accurate and has no advantage to animals or people. Animals including dogs, cats, mice, pigs, monkeys, horses, deer, and cattle are commonly used for these senseless experimentations. The other remaining misfortunate animals come from places a little closer to you and me. Some of them come from animal shelters, some from the “free to a good home” ads in the newspaper, or, even worse, some have been stolen directly from their own yard. Imagine your pet being crammed into a cage with ten other animals waiting to die in these cruel and heartless experiments. The current system of drug testing places consumers in a ...
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... defined characteristics and the ability to be grown and crossed (Campbell, 1996). Mendel wanted to know the genetic basis for variation among individuals and what accounted for the transmission of traits from generation to generation. Mendel followed traits for the P generation, F1 generation, and F2 generation. The P generation is the original true-breeding parents. Their hybrid offspring is the F1 generation, the first filial. The F2 generation is the second filial and is the self- pollination of the F1 hybrids. It was predominantly his research on the F2 generation that led to Mendel’s Law of Segregation and Law of Independent Assortment (Campbell, 1996 ...
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