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Alchemy

... would try to turn a base metal like lead, copper, and iron and transform it into one of the noble metals such as gold and silver. One way they planned on doing this was to make something called the Philosophers Stone which would work by touching the stone to a metal and it would transform into the metal the alchemists wanted. Many alchemists would spend there whole lives searching for the substance that would start the transmutation that would make them rich, also many alchemists were hired by lords and noblemen who wanted to know the secr ...

Number of words: 657 | Number of pages: 3

Deep Ocean Trenches

... sides. Geophysical data provide important clues concerning the origin of trenches. No abnormalities in the flow of internal Earth heat or variations in the Earth's magnetic field occur at trenches. Precision measurements reveal that the force of gravity generally is lower than normal. Small quantities of brown or red clay, which are signs of organic remains, volcanic ash and lapilli, and coarse, graded layers are found in the trench. Large amounts of remains cannot build up because they either are dragged into the Earth's interior or ar ...

Number of words: 926 | Number of pages: 4

E-commerce

... one of the biggest challenges is understanding the economic and social logic driving change. While much of the frenetic growth is fueled by the Internet's obvious capabilities-e-mail, newsgroups, Web sites, and a modest amount of actual market transactions-it remains uncertain what business models and Internet functions will prove most popular and profitable over the long term. Much will depend upon how the new electronic technologies will change existing business practices, market structures, and the social habits of the workplace, marketpla ...

Number of words: 4426 | Number of pages: 17

Global Warming A Serious Threa

... states that "changing regional climate could alter forests, crop yields, and water supplies. It could also threaten human health, and harm birds, fish, and many types of ecosystems." The threat to human health is due to local climate. The reason why local climate threatens human health is that "extreme temperatures can directly cause the loss of life". And also many serious diseases appear in warm places. But not only is it that "warm temperatures can increase air and water pollution, which in turn harm human health" (ESP Health 1). The ...

Number of words: 881 | Number of pages: 4

Chloroflourocarbons

... name “freon,” constituted 15% of the market for refrigerator gases. CFCs were the perfect answer for cooling refrigerators and air conditioners. They were easily turned into liquid at room temperature with application of just a small amount of pressure, and they could easily then be turned back into gas. CFCs were completely inert and not poisonous to humans. They became ideal solvents for industrial solutions and hospital sterilants. Another use found for them was to blow liquid plastic into various kinds of foams. In the 1930 ...

Number of words: 1178 | Number of pages: 5

The Origin Of Life On Earth

... notoriety amongst many circles as compelling evidence that life could be firmly of rooted in our ancient seas. The project recreated the, what was believed to be, simple atmosphere and hydrosphere on our primitive Earth in a sealed glass ecosystem. This ecosystem had a bulb, which contained an amount of water with hydrogen, nitrogen, and simple carbon compounds dissolved in them. These various elements were believed to either formed with the Earth or were picked up by the many meteoric collisions that immediately following the forma ...

Number of words: 794 | Number of pages: 3

The Stroop Phenomenon

... two researchers found that picture naming was affected by the presence of incongruent words (Experiment 1). Also naming a picture was faster than when a congruent word was present. Therefore pictures activate the name code. Another experiment (Experiment 2) indicated that memory for pictures and words, whether they were initially named or categorized had an effect on memory. Memory was better for words if they have been categorized and for pictures if they have been named. Experiment 3 showed the same results as the previous two experiment ...

Number of words: 995 | Number of pages: 4

Photosynthesis

... The presence of light and of the green pigment chlorophyll makes the change of carbon dioxide and water to glucose and oxygen possible. It was Jan Ingenhouz with Jean Senebier in Geneva that founded the basic gist of the theory of photosynthesis in plants. My experiment involves testing different brands of plant food on plants to see what brand of plant food makes the plant grow the tallest. I will test three types of plant food on three sets of plants and one set with no food. I will water the plants all the same amount and l ...

Number of words: 752 | Number of pages: 3

Droughts

... of the drought is determened by the degree of moisture deficiency, its lengh, and the size of the area affected. If the drought is short, it is known as a dry spell, or partial drought. A partial drought is usually defined as more than 14 days without a notable amount of precipitation, onthe other hand a drought may last for years. tend to be more severe in some areas than in others. Catastrophic generally occur at latitudes of about 15°-20° and in areas bordering the permanently arid regions of the world. Lands that are permanent ...

Number of words: 478 | Number of pages: 2

American Crocodile

... „H Conservation „H Farming „H Conclusion The American Crocodile (Crocodylus acutus) Crocodylus acutus, or more commonly referred to as the American crocodile, ¡§¡Kis the second most widely distributed of the New World crocodiles, ranging from the southern tip of Florida, both the Atlantic and Pacific Coasts of Southern Mexico, as well as the Caribbean islands of Cuba, Jamaica, and Hispaniola¡¨ (1 Species). These areas provide the perfect climate for these endangered species that have roamed the earth for ove ...

Number of words: 2518 | Number of pages: 10

Lions

... Both sexes have retractable claws to keep them sharp when they are needed. have wide powerful jaws. The roar, which can be heard by humans up to 9 (5.6 miles) kilometers away, is usually uttered before the animals hunt in the evening, after a successful hunt, and again in the early morning. Habitat & Human Impact once ranged throughout Africa and from Europe to Iran and India. By 1900 were no longer found in Syria; today Asiatic are limited to the Gìr Sanctuary in India. also roam Africa south of the Sahara, particularly the Ser ...

Number of words: 582 | Number of pages: 3

Galileo Galilei "founder Of Modern Experimental Science"

... his education. In 1581, his father sent him to the University of Pisa because he thought his son should be a doctor. For four years, he studied medicine and the different theories of the scientist Aristotle. He was not interested in medicine, but soon he became interested in math. In 1585, he convinced his father to let him leave the school without a degree. Galileo was a math tutor for the next four years in Florence. He spent a lot of the four years studying the scientific thoughts and philosophies of Aristotle. He also invente ...

Number of words: 422 | Number of pages: 2

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