... another weapon of destruction. Since there was no war, the scientists who created the atomic bomb, turned this destructive power into huge plants generating "clean and cheap "electricity for the country. But this new resource brought sickness, mutations, cancer and eventually death to those exposed to high levels of radiation. Even the government declared that nuclear powers were safe and efficient. The truth is that accidents do happen at nuclear power plants and at other facilities all the time. An accident at a nuclear power plant has the potential to be much more harmful than an accident at a coal or gas pla ...

... per day, 10 per hour, another dead species every 6 minutes. We're trashing the planet, washing away the topsoil, paving over our farmlands, systematically deforesting our wildernesses, decimating the biota, and ultimately killing ourselves. The world is getting progressively poorer, and it's all because of populating, or more precisely, over-population. There's a finite store of resources on our pale blue dot, spaceship Earth, our small and fragile tiny planet, and we're fast apporaching it's ultimate carrying capacity. The limits to growth are finally upon us, and we're living on borrowed time. The laws of popul ...

... science have helped us in the search for an explanation of these mysterious floating objects. In actuality they haven't gotten us much further on the mission for proof of other living beings in the universe. But in a universe so incomprehensibly large that we no not even a boundary, I sincerely doubt that the human race is the only form of life. It seems certain scientists have come up with other hypotheses concerning UFO's. While all astronomers yearn for a concrete explanation on UFO's, their beliefs on their origin contrast. Many looking for a more scientific definition disregard UFO's as nothing more tha ...

... 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 as animals is ethical or even moral. Also there has been much discussion as to whether or not the benefits of cloning outweigh the dangers. WHAT ARE THE BENEFITS IN CLONIN ...

... known scientist named Neal D. Barnard said," The use of animals for research and testing is only one of many investigative techniques available. We believe that although animal experiments are sometimes intellectually seductive, they are poorly suited to addressing the urgent health problems of our era, such as heart disease, cancer, stroke, AIDS and birth defects." He goes on further to say that animal experiments can not only mislead researchers but even contribute to illnesses or deaths by failing to predict any toxic effect on drugs. The majority of animals in laboratories are used for genetic manipulatio ...

... of the Space Shuttle Challenger. (Compton's 1) Many people thought that disaster couldn't strike because a civilian was on board. But as the whole nation found out, nobody is immortal. By examining this further, we will look at the lives of the seven who died in this dumbfounding calamity, take a look at exactly what went wrong during this fateful mission, and the outcome from this sorrowful occurrence. First, who exactly were those astronauts that died on the Challenger? Sharon Christa Corrigan McAuliffe, born in 1948, was the famous winner of the teacher-in-space program, was a high school teacher at Co ...

... is increased, the particles get more energy, so they bump into one another more, therefore speeding up the reaction time. This is called the collision theory, which I will discuss in greater depth later.  Whether or not there is a catalyst. A catalyst speeds up the rate of reaction and remains chemically unchanged by the end of the experiment. A catalyst lowers the activation energy. This is the energy needed to start a reaction. The variable that I have decided to change is the temperature. I have decided to alter the temperature of the yeast and time the amount of carbon dioxide that will be ...

... light that they sidle on their going downward, hesitating in that which is not void to them, and touching at last so intangible to the earth with which they are to merge, that the gesture is much gentler than a greeting, and even more discreet than a discreet touch. They make a little sound, less than the least of sounds. No bird at night in the marshes rustles so slightly, no men, though men are the most refined of living beings, put so passing a stress upon their sacred whispers or their prayers. The leaves are hardly heard, but they are heard just so much that men also, who are destined at the end to grow gloriou ...

... two to three or even ten times as high (Atchia and Tropp, 1995). Desertification is the land degradation of productive drylands in arid, semiarid, and dry subhumid areas as a result of various factors, including climatic variations and human activities (World Atlas of Desertification, 1997) These drylands have been central in the evolution of mankind. These are the lands that sustained our transition from a hunting/gathering to pastoralism and agriculture (Kaya and Yokobiri, 1997). Drylands still provide much of our grain and livestock. These areas cover more than 40 percent of the world’s land surface. As th ...

... not have any problems obtaining sufficient oxygen amounts for cellular respiration. Aquatic animals, however, obtain oxygen from a different aquatic respiratory medium---water. The dissolved oxygen concentrations in an aquatic environment is much lower than the 21% oxygen concentration available in the atmosphere (Barstow et al. 1999), hence special problems pertaining to the acquisition of sufficient amounts of oxygen arise for aquatic organisms---namely fish. Fishes have had to develop adaptations that enabled them to adapt to this problem. Since water contains an insufficient concentration of oxygen, fishes us ...