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- Charles Law - 766 words
Charles Law Introduction: One of the variables that affects the volume of a gas is the temperature of the gas and its surroundings. This volume-temperature relationship is quantified in Charless law. The law states that as the temperature of a gas decreases, the volume of the gas decreases proportionately. An ideal gas at 273 K, for example would decrease in volume by 1/273 of its original volume for each Celsius degree the temperature decreases. If the temperature decreased sufficiently, the volume should decrease to zero. Real gases, however, liquefy and solidify long before this theoretical limit, called absolute zero, is reached. By using air as a sample of a real gas and limiting the te ...
Related: air temperature, water temperature, total number, count, relationships - Chemical Equilibria - 1,497 words
Chemical Equilibria Darryl Fagan Pd. 4 01-20-00 AP Chemistry An Activity Series Chemistry Lab 5 Introduction; In this experiment you will study some metals and some nonmetals to find their relative reactivity. A ranking according to reactivity is called an activity series. For example, an activity series containing the elements calcium, gold and iron would put the reactive calcium at the top, iron in the middle, and the unreactive gold at the bottom. If a piece of iron metal is placed in a solution of gold nitrate, the iron will dissolve forming positive ions while the solid gold metal appears. The more reactive metal will displace ions of the less reactive metal from solution. The less reac ...
Related: mixture, ions, observing - Childhood Obesity - 1,041 words
... results in the release of fatty acids into veins which causes an excess of hepatic synthesis of triglycerides, insulin resistance and hyperinsulinemia. Arthritis Arthritis is also another health risk that is associated with obesity. The over weight problem that is caused by obesity starts to wear out the joints and this causes a decrease in mobility. The muscles in the body known as skeletal muscles are weakened and reduced in volume turning them into a muscular hypotrophy. Also, excess weight is a major predictor of osteoarthritis of the knee. Skin A reaction to obesity is the irritations of the skin of an obese person. The skin is composed of elastine, that gives elasticity and lets f ...
Related: childhood obesity, obesity, peanut butter, american society, rebecca - China 2000 - 1,724 words
China 2000 CHINA 2000 What is China? Is it maybe the image of the ancient times with the glorious old dynasties, the powerful emperors, the wondrous temples, the fascinating winding gardens? Or is it maybe a strict communist world with uniformed people wearing Mao suits and living in dreary gray concrete apartment blocks? Or perhaps it is the skyscrapers of Hong Kong and Shanghai, the horrendous traffic, the buzzing commotion, ultra modern electronics and plate glass buildings? In reality, China is all this in one. It is a land that intertwines a miraculous ancestral heritage with a capitalist reality blooming in the heart of a still surviving communist system. In todays China, the gigantic ...
Related: china, mainland china, chinese people, ancient times, relics - Chinese Pottery - 470 words
Chinese Pottery Chinese Pottery The earliest Chinese pottery of which we have any records is the Neolithic ware from the river plains and loess highlands of north and north-west China. It was made between 5000 and 2000 B.C. and contains bowls, jars, pots and beakers of low-fires earthenware. This pots were not turned on a wheel but were buildt up by what is known as the Coil Method. That is, a long sausage of clay was wound carefully up into a coil shape and this coil was smoothed and patted by hand into the shape of a pot. During the Tang Dynasty China became the greatest and most widespread empire in the world . Tang pottery is powerful and lively with sweeping sinuous curves while its dec ...
Related: chinese, chinese history, pottery, middle east, southern china - Civil War - 1,560 words
Civil War Civil War During the American Civil War, which lasted from 1861-1865, over 620,000 accounted soldiers were killed. Known as the "the first modern war", historians generally agree that the reason for this was because this was a time of transition for the military. Armies and Navies were still using tactics where they would gather large forces of firepower to bear on the enemy. At the same time, weapons were being developed which were accurate and lethal well beyond any arms of the earlier conflicts. As a result of these two conditions many more casualties were sustained. Add to that the lack of medical knowledge of disease and infection and the numbers truly began to grow. This pape ...
Related: american civil, american civil war, civil war, north carolina, u.s. government - Color Theory - 1,472 words
Color Theory Color photographs begin as black and white negatives. Color film consists of three layers of emulsion, each layer basically the same as in black and white film, but sensitive only to one third of the spectrum (reds, greens or blues). Thus, when colored light exposes this film, the result is a multilayered black and white negative After the negative images are developed, the undeveloped emulsion remaining provides positive images by reversal. The remaining emulsion is exposed (chemically or with light) and the film developed a second time with a different developer. As it converts the light-sensitive silver compounds to metallic silver, the developer becomes oxidized and combines ...
Related: methods used, real world, complementary colors, mosaic, random - Color Theory - 1,552 words
... ensations can be produced this way, including those red-blue mixes (purples and magentas) not found at any wavelength band in the spectrum. In photography, the principles of additive color synthesis underlie making separation negatives for photomechanical reproduction of color images, and dye transfer and similar printing processes. It was also the principal behind the Autochrome film process and similar screen processes. In the darkroom, additive color printing uses red, green, and blue exposures to obtain prints from color negatives and transparencies. ( 1 ) The Grainmaker filter relies on this principle of additive color printing. AUTOCHROME was a photographic transparency film patent ...
Related: over time, isaac newton, visible spectrum, photographer, knife - Combinatorial Chemistry - 784 words
Combinatorial Chemistry And New Drugs The body fights disease by generating antibodies that bind to invading organisms. The body can make different antibodies by shuffling and reshuffling their constituent parts, but it can't make a special antibody each time it is faced with a new pathogen. So it uses only the antibodies that will work best and makes more of them. In the past few years, chemists have begun to follow this method to develop new drugs. Instead of looking for signs of a desired activity and then making modifications to the structure, they generate a large number of related compounds and then screen the collection for the ones that could have medicinal value in a process called ...
Related: chemistry, flat panel, building blocks, scientific american, mixture - Commercial Papermaking - 1,026 words
Commercial Papermaking Commercial Papermaking Paper in 20th-century civilization, is one of our most important industrial products. Books, magazines, and newspapers are printed on paper. Data from computers are usually printed on paper. Education, government and industry could not operate without printing and writing on paper. Paperboard (used in packaging), and absorbent papers (tissue and towelling) are other widely used paper products. Paper is made from cellulose fibbers, which are found in all plant cell walls. When a mixture of water and fibbers is filtered through a fine screen, the fibbers tangle together to form a sheet of paper. As the wet sheet is dried chemical bonds form between ...
Related: commercial, raw materials, essential steps, microsoft corporation, suspension - Computer Communications - 951 words
Computer Communications Communications. I could barely spell the word, much less comprehend its meaning. Yet when Mrs. Rubin made the announcement about the new club she was starting at the junior high school, it triggered something in my mind. Two weeks later, during the last month of my eighth grade year, I figured it out. I was rummaging through the basement, and I ran across the little blue box that my dad had brought home from work a year earlier. Could this be a modem? I asked Mrs. Rubin about it the next day at school, and when she verified my expectations, I became the first member of Teleport 2000, the only organization in the city dedicated to introducing students to the informatio ...
Related: communications, computer communications, global community, song lyrics, hung - Computer Security - 1,252 words
... puter become more and more important and helpful. You can input a large amount of information or data in a small memory chip of a personal computer. The hard disk of a computer system is liked a bank. It contained a lot of costly material. Such as your diary, the financial situation of a trading company or some secret military information. Therefore, it just like hire some security guards to protect the bank. A computer security system can use to prevent the outflow of the information in the national defense industry or the personal diary in your computer. Nevertheless, there is the price that one might expect to pay for the tool of security: equipment ranging from locks on doors to comp ...
Related: computer company, computer security, computer system, computer systems, personal computer - Conversation With A Doctor - 1,881 words
Conversation With A Doctor Of All Things Well doctor, we realized we needed help because, because it just wasn't working out. You can only work out your own problems for so long. I'm sure you are, doctor. No, Dr. Pasquali recommended you, he's our family doctor. He thought it might help for us to see you. Oh I see. Tuesday, then. All right. Thursday? I think he could. I'll tell him. Are you sure you don't want to see us together? I suppose so, doctor. Goodbye. Tuesday Thank you doctor. No, I wasn't expecting a pipe-smoking Freudian, but..... Of course not. Maybe Arnaud would, but not me. Okay, I'll tell you if I am. But I won't be. After all, I am the one who decided to come to you. Nine. We ...
Related: conversation, south america, french literature, good idea, goodbye - Conversation With A Doctor - 1,881 words
Conversation With A Doctor Of All Things Well doctor, we realized we needed help because, because it just wasn't working out. You can only work out your own problems for so long. I'm sure you are, doctor. No, Dr. Pasquali recommended you, he's our family doctor. He thought it might help for us to see you. Oh I see. Tuesday, then. All right. Thursday? I think he could. I'll tell him. Are you sure you don't want to see us together? I suppose so, doctor. Goodbye. Tuesday Thank you doctor. No, I wasn't expecting a pipe-smoking Freudian, but..... Of course not. Maybe Arnaud would, but not me. Okay, I'll tell you if I am. But I won't be. After all, I am the one who decided to come to you. Nine. We ...
Related: conversation, good idea, south america, wedding gift, learnt - Corrosion And Rusting - 1,057 words
... Fe2+ (aq) + 2OH- Fe(OH)2 (s) The precipitate is rapidly oxidized by dissolved oxygen to form iron (III) hydroxide. 4Fe(OH)2 (s) + O2 (aq) + 2H2O (l) 4Fe(OH)3 (s) On standing, this changes to rust, a reddish brown solid. Rust is in fact hydrated iron (III) oxide with variable composition (Fe2O3 nH2O). Factors that speed up rusting 1) Presence of electrolytes Acid solutions make rusting go faster. In industrial areas where air is seriously polluted, there are high concentrations of carbon dioxide, sulfur dioxide and nitrogen dioxide. These gases dissolve in rain water to give "acid rain", which makes iron objects rust faster. Sodium chloride also makes iron rust more quickly. For exampl ...
Related: corrosion, dissolved oxygen, carbon dioxide, acid rain, terminal - Cost Estimates For European Tour - 515 words
Cost Estimates For European Tour March 15-Day One the group will be leaving Orlando International Airport by plane on Flight 212 leaving for Madrid, Spain. Price = $418.00 March 18-Day four the group will be leaving Madrid by plane on flight 86 for Paris, France. Price = $288.00 March 21- Day seven the group will be leaving Paris International by plane on flight 124 for Geneva, Switzerland. Price = $130.00 March 24- Day ten the group will leave Geneva by plane on flight 584 for Vienna, Austria. Price = $150.00 March 27- Day thirteen the group will be leaving for its final destination from Vienna by plane on flight 56 for Berlin, Germany. Price = $200.00 Cost Estimates For Logging Madrid, Spa ...
Related: total cost, tour, international airport, paris france, logging - Cozumel - 608 words
Cozumel Paradise In Mexico, off the tip of the Yucatan Peninsula is an island. The island is surrounded by coral reefs filled with life. Ferry boats pass over the reefs, making half-hour runs to and from the mainland. Dive boats anchor near the coral itself, and divers bob around among the eels, fish, and lobsters. Cruise ships come in around the reef, and drag anchor through dead reef. The dock that accommodates them occupies space that used to be one of the oldest surrounding reefs. If it's right or wrong, it's been done, and people pay lots of money to ride on the big luxury liners. The large dock juts out toward the mainland, and the surf there is calm. The beach is not. Small children w ...
Related: yucatan peninsula, main street, before sunset, anchor, carlos - Culture Awareness - 1,454 words
Culture Awareness I was planning to take a leisurely trip this summer, but now I think I'll have to change my plans. Instead I'll probably have to take a crash course in Sensitivity for the Culturally Unaware. Maybe it's because I grew up in Chicago, perhaps the most culturally diverse city in the country. Maybe it's because I have a mulatto niece and nephew. Maybe it's because my cousin's last name is now Hernandez. Maybe it's because my wife's cousin is a Native American. Or maybe it's because we Poles have borne the brunt of more jokes than any other ethnic group, but all this time I thought I was aware of other cultures and the feelings of members of other ethnic groups and minorities. N ...
Related: awareness, interstate highway, american experience, speed limits, pride - Darwinism - 1,598 words
Darwinism The question of how man evolved has been pondered since man first stepped foot on this planet. Many great philosophers and explorers have made attempts to try to answer this question. Charles Darwin was one of these people. Darwin led a full life of exploration, and during these adventures, he accumulated much information about evolution. He met many explorers that had various ideas of their own about how man evolved. In discussion with these people, he figured out if what they were telling him was fact or fiction. This helped him to formulate his own theory. Curiosity was aroused in Darwin at a very young age. He was one of those children that are always into things, trying to fin ...
Related: darwinism, great philosophers, galapagos islands, book of genesis, sheep - Derek - 4,128 words
Derek Derek lifted the large plastic tub, which he had just filled with ice, level with the counter, dumped the ice into the stainless steel container, and sighed. He looked at his watch: 10:25, it said; almost mid-morning, and five eternal minutes left until his fifteen minute coffee break. Fuck it, he thought, I'll take it now. He bent down low with a much-practiced 'bowling' motion and sent the plastic tub whizzing down the tiled corridor into the dish room where it hit the surly dishwasher on the ankles. "'Bowling For Busboys'!" he yelled (out of habit, mostly, since it had been a while since he had found the consequences of that action really amusing), and paced off to the staff room. " ...
Related: derek, ice cream, conscious mind, heavy metal, burning
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