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Radioactive Wastes

... energy for a period of time that varies with the isotope. During this active period, while the atoms are 'decaying' to a stable state their energies can be used according to the kind of energy they emit. Since the mid 1900's radioactive wastes have been stored in different manners, but since several years new ways of disposing and storing these wastes have been developed so they may no longer be harmful. A very advantageous way of storing radioactive wastes is by a process called 'vitrification'. Vitrification is a semi-con ...

Number of words: 1801 | Number of pages: 7

Atom And Qi

... in relation to ¡¥materiality¡¦, whereas qi is relavant to ¡¥spirituality¡¦. The historical progression towards a belief in atoms promoted the deduction of atoms throughout centuries. Nowadays, the atom is universally believed by people to exist as the result of scientific evidence. In contrast, ¡¥qi¡¦ is not believed to be a scientific phenomena and is considered a religious or superstitious belief. As a result, in order to demonstrate the existence of ¡¥qi¡¦ and make it conceivable by modern physicists, the use of the sc ...

Number of words: 2055 | Number of pages: 8

CLONING HAS SCIENCE GONE TOO F

... cell. What Dr. Wilmut did was amazing. He took the DNA from a six-year-old ewe and fused it with the egg of another ewe after removing the second ewe's own DNA. After fusing, the cell began to divide as would a regular embryo. The embryo was then implanted in a third ewe who only a few months later gave birth to Dolly 1 . Upon news of this, many people began to question the possibility of not only creating genetically identical sheep, but humans as well. There has been much controversy on whether or not the cloning of humans as well ...

Number of words: 1295 | Number of pages: 5

Photosynthesis

... autotrophic organisms, heterotrophic lofe would cease to exist." Without autotrophic organisms heterotrophic organisms would not be able to survive for two asic reasons. One is the fact that autotrophic organisms create most of the oxygen that heterotrophs breath. Whithout them, heterotrophs which need oxygen to survive would not live very long. The second reason is that autotrophs are the lowest food on the food chart. Without them many heterotrops would die from starvation. 3. Why did you put your syringes containing leaf material in th ...

Number of words: 377 | Number of pages: 2

Acid Rain

... of the border, cars and trucks are the main sources for nitric acid(about 40% of the total), while power generating plants and industrial commercial and residential fuel combustion together contribute most of the rest. In the air, the sulphur dioxide and nitrogen oxides can be transformed into sulphuric acid and nitric acid, and air current can send them thousands of kilometres from the source.When the acids fall to the earth in any form it will have large impact on the growth or the preservation of certain wildlife. ...

Number of words: 1274 | Number of pages: 5

Stratospheric Observatory For Infrared Astronomy

... will accommodate installation of different focal plane instruments, with in-flight accessibility, provided by investigators selected from the international science community. The Observatory objective is to have an operational lifetime in excess of 20 years. The SOFIA project is in the early full-scale stage. The start of detailed system design is anticipated in the Fall of 1996. The German Space Agency (DARA) is a partner with NASA in the SOFIA project. DARA will provide the telescope and NASA will provide the rest of the facility ...

Number of words: 178 | Number of pages: 1

Nickel Metal Hydrive Battery For Electric Vehicals

... that can allow electrochemical storage and release of hydrogen during charge and discharge. The cathode electrode is reversible between Ni(OH)2 and nickel oxyhydroxide (NiOOH). At both electrode, oxidation-reduction reactions take place in an alkaline medium consisting of 30% by weight KOH in water. When charging, Ni(OH)2 at the positive electrode becomes oxidized and the metal hydride becomes reduced. In fact, the hydrogen which was separated from water come to react with the metal in the negative electrode to form MH. On the ot ...

Number of words: 610 | Number of pages: 3

Nobelium

... Bernhard Nobel, the Swedish inventor and philanthropist. Nobelium can be found when produced artificially in a laboratory. Discovery of the element was first claimed in 1957 by scientific groups in the United States, Great Britain, and Sweden, but the first confirmed discovery of a nobelium isotope was by a team of scientists at the Lawrence Radiation Laboratory in Berkeley, California and that took place in 1958. The isotope was created by bombarding curium isotopes with carbon ions. Chemically, the properties of nobelium are unknown, but ...

Number of words: 163 | Number of pages: 1

Current Status Of Malaria Vaccinology

... humans, but can also infect a variety of hosts ranging from reptiles to monkeys. It is therefore necessary to look at all the aspects in order to assess the possibility of a vaccine. The disease has a long and complex life cycle which creates problems for immunologists. The vector for Malaria is the Anophels Mosquito in which the life cycle of Malaria both begins and ends. The parasitic protozoan enters the bloodstream via the bite of an infected female mosquito. During her feeding she transmits a small amount of anticoagulant and ha ...

Number of words: 2080 | Number of pages: 8

Digestive Systems Of Humans, Earthworms, And Grasshoppers

... the larynx, and the esophagus. The bolus of food, moved by peristalsis, then enters the esophagus. The bolus will then pass through the cardiac sphincter into the stomach. In the stomach, the muscular lining churns the food causing mechanical breakdown to take place. In the stomach lining, the pyloric glands secrete mucus that forms a mucus lining. Also in the stomach lining, are epithelial cells and the gastric glands. The gastric glands secrete gastric juices. Hydrochloric acid is released which deactivates the salivary amylase, ...

Number of words: 1293 | Number of pages: 5

Everglade Dilemma

... created by a specific set of environmental and geologic features present at the same time. Modern life is still effected by the different environmental factors and systems that occur worldwide. Each system reaction causes and equal and opposite reaction in an another system. This cause and effect is demonstrated by many of the earth's environmental systems. Deep in the heart of Florida lies a natural resource known as the everglades. This particular system is extremely complex and one that follows the action-reaction principle. Both the corr ...

Number of words: 265 | Number of pages: 1

Depression 2

... The biggest factor is that neurotransmitters become inactive (Stewart 8). Unfortunately, only 20% of all depressed people actually get help (Stewart 11). Fortunately though, 85% of all depressed people that do get help can be helped to a significant degree (Salmans 75). Finally, in 1970, they saw depression as a disorder in young peoples (Stewart 8). Even babies can become depressed if they’re neglected. Many young people that suffer from depression turn to suicide. 5,000 young people take their lives each year (Stewart 9). The rate ...

Number of words: 1454 | Number of pages: 6

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