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Essays on Science

The Invention Of The Telegram
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... and Arizona. The settlement in detail is left to you. You will inform the President of the above most secretily as soon as the outbreak of war with the United States of America is certain and add the suggestion that he should, on his own initiative , invite Japan to immediate adherence and at the same time mediate between Japan and ourselves. Please call the President's attention to the fact that the ruthless employment of our submarines now follows the prospect of compelling England in a few months to make peace" - ZIMMERMANN Considering this telegram was sent to Mexico, it shows Mexican importance in this war. Mexico had two thousand miles of undefended coastli ...



Multi-regional Continuity: The Fossil Evidence
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... to skull morphology. “Modern” features in skull morphology as the word is used here include thin cranial walls, small supraorbital ridges, small teeth, small eye sockets, broad, flat foreheads, large cranial volume (above 1200 cc.), low prognathism in the area of the lower face, and a high, vaulted shape in the area of the cranium. “Archaic” features in skull morphology include thick cranial walls, heavy supraorbital ridges, large teeth, large eye sockets, sloping foreheads, low cranial volume (below 1200 cc.), high prognathism in the area of the lower face, and a small, football-shaped cranium. The presence of various mixtures of ...



Flourescence In-situ Hybridisation And Its Advantages
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... samples of maternal blood instead of amniotic fluid. The problem with amniocentesis is it uses a hollow needle to take fluid from the mother's uterus. The needle could damage the developing fetus if not inserted properly. Another advantage of FISH is that the parents get a much quicker test result than amniocentesis. After the sample is taken, amniocentesis can take up to three weeks before a test can be administered. With FISH, a same day result is given, which is much more convenient to the parents. Additionally, FISH is a simpler process. It uses specially prepared molecules which bind to specific regions of DNA. To find a particular gene, the examiner just ...



Acid Rain
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... and oil to heat our homes. The smoke and fumes from burning fossil fuels rise into the atmosphere and combine with the moisture in the air to form . The main chemicals in air pollution that creates are sulfur dioxide and nitrogen oxides. usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. This forms a mild solution of sulfuric acid and nitric acid. Sunlight increases the rate of most of these reactions. Rainwater, snow, fog, and other forms of precipitation containing those mild solutions of sulfuric and nitric acids fall to the earth as . Water moves through every living plant and animal, st ...



Analysis On Electronic Data Imaging
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... to the dismay of many in the business world, the arrival of the "paperless office" has been slow coming. Even though the technology exists to almost eliminate paper documents, many businesses have never heard about it. This technology is collectively known as Document Imaging. Imaging has evolved out of the necessity for businesses to manage the ever-increasing amounts of information(Porter- Roth Associates, 1996). The following statistics are evidence of the massive amounts of paper that exist in American business today: Over three trillion documents are currently stored in corporate offices in the U.S. alone and 95 percent of those are in paper from. One ...



Evolutionism
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... and they developed possibilities of how it occurred. Many theories were developed, but someone always disproved them. Recently with the discovery of genetic mutation and a new understanding of genes and DNA, the evidence supporting evolution has greatly increased. Charles Darwin was one scientist who helped to increase the evidence supporting evolution. Darwin developed the idea of “natural selection” where living things that reproduced in large numbers and survived became dominant and other living things adapted to survive, or they died. Francis Crick, a scientist, co-discovered DNA which opened new doors to the idea of evolutionism (History). ...



Nuclear Power And Its Uses
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... it concentrates in the cells of certain brain tumors. Thyroid gland strongly attracts iodine. Radioactive iodine is used both in diagnosing and in treating diseases of the thyroid. Nuclear power is changing the face of medicine with new cures and tests that will cure millions.. Nuclear power can be converted into strong and efficient nuclear energy and be used for many purposes. Nuclear power reactors generates heat that is converted into steam. The steam can be used directly for energy. This energy is used in transportation. Most military subs are now ran by nuclear energy. The most used purpose of nuclear energy can also be used to generate electric power f ...



Possibility Of Terraforming One Of Earth's Neighboring Planets
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... of the planet's environment to the extent that it will facilitate human existence on that planet. In order to accomplish this, technology must be aimed at three specific, vital areas: The creation of an aquatic medium, a terrestrial plateau and celestial ether that is conducive to human respiration. There are two planets from which to choose: Mars and Venus. Martyn J. Fogg authored what is regarded as a textbook of the future called Terraforming: Engineering Planetary Environments. I have chosen Fogg's book as my second primary source because it is the only book of its kind that addresses the question of terraforming in a non- science fiction context. The s ...



Ants, Little But Mighty
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... wings and instinctively begin to look for a spot to start a new ant colony. After making a nest, the young queen ant seals off the entrance and begins to lay eggs. Some of the first batch are eaten by the queen for nourishment. When the surviving eggs hatch they become like larvae. After a few weeks each larva spins a cocoon around itself and pupates. In a few more weeks, adult workers emerge. It is their job to hunt for food and make the nest bigger. More workers will develop and the colony gets very organized. The new workers will completely take over as caretakers of the eggs, larvae, and pupae. Now the queens only duty is to lay more and more ...



Black Holes
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... is a region where matter collapses to infinite density, and where, as a result, the curvature of space-time is extreme. Moreover, the intense gravitational field of the black hole prevents any light or other electromagnetic radiation from escaping. But where lies the “point of no return” at which any matter or energy is doomed to disappear from the visible universe? The black hole's surface is known as the event horizon. Behind this horizon, the inward pull of gravity is overwhelming and no information about the black hole's interior can escape to the outer universe. Applying the Einstein Field Equations to collapsing stars, Kurt Schwarzschild discovered the ...




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