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Atoms

... of matter in 1803. In his theory he stated four theories. 1.)All mater is composed of atoms 2.) Atoms of same elements are the same 3.) Atoms of different elements are different and 4.) Atoms unite in definite whole number ratios when they form compounds. Though his theory has some errors, these theories are the basis for our understanding of atoms and chemistry. One mistake of Dalton was his belief that atoms were round and hard. This became the primary ambition for scientists after Dalton, to find out the structure of an atom. In 1897, ...

Number of words: 520 | Number of pages: 2

Black Holes

... the horizon of a Schwarzschild black hole depends only on the mass of the body, being 2. 95 km (1. 83 mi) times the mass of the body in solar units (the mass of the body divided by the mass of the sun). If a body is electrically charged or rotating, Schwarzschild's results are modified. An "ergosphere" forms outside the horizon, within which matter is forced to rotate with the black hole; in principle, energy can be emitted from the ergosphere. According to general relativity, gravitation severely modifies space and time near a blac ...

Number of words: 688 | Number of pages: 3

Nutrition Vs. Sport Performance

... performance. Prior to strenuous activity it is imperative that the body has the required amounts of nutrients to carry out an activity. At the latest reference it is recommended that a person consume an average of 2200 mg of calories, 60 g of fat, less than 5000 IU of vitamin A, more than 60 mg of vitamin C, 400 IU of vitamin D, more than 2000 mg of potassium, 2000 mg of sodium, 65 g of protein, 1.5 mg of thiamin, 1.7 mg of riboflavin, 20 mg of niacin, and 18 mg of iron. Nutritionists of today simplify this into an equation of 40% carbo ...

Number of words: 1259 | Number of pages: 5

Acetylation Of Ferrocene

... a company can synthesize new types of materials or composites that could revolutionize an industry. Background When we react the ferrocene with phosphoric acid and acetic anhydride, we obtain many disparate products. Not only do we get acetylferrocene, but we also get diacetylferrocene, some unreacted ferrocene reactant, and acetic acid as well. We will use thin layer chromatography (TLC), column chromatography (CG), and IR spectra analysis in order to determine the what proportions of each of these compounds will be present in the fin ...

Number of words: 1603 | Number of pages: 6

Solar Oven

... will allow heat to pass through, but not allow it to escape. The charcoal cubes and shavings will absorb the heat in the box and store the excess heat allowing the flow to continuously warm the oven. The tin foil will reflect heat and subsequently heat up the oven. The polyurethane material will trap the heat inside the oven. The mirrors will help the heat stay inside the box. Materials used: Shoe Box Tin Foil Sheets of Glass Charcoal Cubes and Shavings Scissors Glue Knives Polyurethane Non-Glossy, Black Spay Paint Four (4) W ...

Number of words: 131 | Number of pages: 1

Arsenic

... and it sublimes (passes directly into a vapor without melting) at 613° C. The Earth's crust contains relatively little , only about 5.5 parts per million. and some compounds have been known for a long time. Aristotle thought that was a kind of sulfur. The Latin word um means yellow orpiment (a pigment containing and sulfur). While knowledge of dates back to ancient Greece, it wasn't until the Middle Ages that its poisonous characteristics were described. It was identified by Albert Magnus about 1250, and he described the way to ma ...

Number of words: 1241 | Number of pages: 5

New High-speed Connections Will Change How We Work And Play

... are limitations to what we can do online. Nearly everyone connects to the Internet using an analog modem. To get online, we boot up our PC’s, and using our telephone line, dial in to our Internet Service Provider. Because telephone technology is much older than the Internet, there have been limitations to how fast data can travel over existing copper telephone lines. Using an analog modem, data is translated from its digital form to an analog signal, to travel over the telephone lines. Once it gets to its destination, the data i ...

Number of words: 860 | Number of pages: 4

The Solar System

... moon moves in eastward circles around the earth. The moon revolves around the earth once every 27.3 days. The Moons distance from the earth is 384,400 km (238,620miles). Its diameter is 3,476 km (2,160miles). As the moon orbits the earth we see different amounts of it due to the light from the sun. These are the different phases known to man full, new, crescent, half, gibbous, and new moon. The earth rotates in its axis once a day. The earth is a sphere shaped object. Its diameter is 12,750 km (7,923miles). It takes 23 hours and 56 minutes t ...

Number of words: 428 | Number of pages: 2

PyroTechnics

... of adequate fire extinguishing capabilities, and, of course, inadequately trained and experienced operators. As a result of these risks, all special effects are regulated at the federal, state and local level. In general, all are explosives, but not all explosives are . Class A explosives (high explosives) are materials like dynamite and Primacord which may detonate even if unconfined. Pyrotechnic special effects materials are Class B explosives. They will burn, but not explode unless confined. Examples are black powder and pellet powd ...

Number of words: 484 | Number of pages: 2

Human Genome Project 2

... arise for genetically altering the unborn. You are now able to choose the sex of you child before they are born with great accuracy. What is on the horizon now, is the possibility of designing your child to be “perfect”. Over the years, there has been heated, ethical controversy on each of these issues, especially designer babies. How far will we let biotechnological discovery take us? What will come of the world if designer babies become standard procedure? The earliest and maybe simplest use of genetic manipula ...

Number of words: 1658 | Number of pages: 7

The Shrew

... some have been found living under logs and leaves in moist forest areas. Most of its gathering of food is done on the surface of the ground but the behavior of shrews that have been caught suggests that occasionally they may tunnel through dead leaves and loose soil in search of food. The shrews burrow is a small underground number of shallow tunnles under flat stones or logs. Burrows found in east Texas were about 2.5 cm round, from 25 cm to 1.5 m long, and not more than 20 cm below the surface. Each burrow has a large area at th ...

Number of words: 531 | Number of pages: 2

Five Components Of My Humanness

... with my friends, I observe their behaviours and listen to their opinions. I am more of an independent type of person. Being with different people has influenced me into appreciating different cultures and beliefs. I have learned things that have now been incorporated into my own set of beliefs and values. I greatly value freedom of thought, friends and family. My emotional self deals with feelings and my ability to handle the demands of life. The spiritual self is all about my beliefs, values, religion and my life philosophies. By satisfying ...

Number of words: 1533 | Number of pages: 6

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