... future. Or it might not happen like that. If you leave it alone and do not harm it, it might have baby’s and have more of its kind. A species is named endangered when of its kind occurs in a low number. About 1000 species in the world are named endangered, or are in threat to be extinct. I never knew that some kinds of birds were in danger. We can help these animals and plants by making laws that you are not allowed to hunt or kill any animal that is in danger of extinction. Government Involvement Only since the 19th century has there been worldwide concern about the case of species in their natural environments. Finally in 1916 they made a law called Migrat ...

... the electrons that are unpaird. They are moving in two directions though causing a negative and positive charge. In the case of magnatism though we find that these elements have a lot of unpaired electrons, in the case of iron, Fe, there are four. What happens then in the case of a natural magnet the unpaired electrons line up or the magnet in a specific mannor. That is all the atoms with unpaired electrons moving in a direction which causes a certain charge are lined up on one side and all the atoms with the opposite charge move to the other side. The atoms then start to cancel each other out as they approach the center of the magnet. This all happens at the ...

... manic and depressive moods. The depressive episodes are characterized by bad feelings of sadness and despair that can become feelings of hopelessness and helplessness. Some of the symptoms of a depressive episode include anhedonia, disturbances in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide. The manic moods are made up by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible behavior. Bipolar affective disorder affects one percent of the population (approxim ...

... water suffered less dental cavities. Further testing concluded that at least 1.0 parts per million of fluorine could help to prevent cavities, but more than 1.5 PPM would cause mottled tooth, so basically a little fluorine would be okay but a lot of fluorine would be bad (Behrman 182). In 1938, with this information, Dr. Gerald Cox of the Mellon Institute began to promote the addition of fluoride to public water systems, claiming that it would reduce tooth decay, however there were two major obstacles in his path, The American Medical Association, and The American Dental Association. Both associations wrote articles in their journals about the dangers of f ...

... and pandemonium by itself. In a recent survey, it was proven that over 50% of the American people are afraid of the bug and what it will do. If this matter is not addressed soon it will be responsible for many casualties. Another branch of technology that has caused casualties in the past and is bound to cause many more in the future is weapons. The weapon that has had the most impact is the gun. It has killed millions, not only in wars, but in everyday life as well. In addition, there is the atomic bomb that killed thousands at Hiroshima. More recently there is the nuclear missile that is capable of wiping out an entire major city. Moreover, there are man ...

... a nation filled with many peoples of different beliefs whose Gods are all so varied and different that it is difficult to fathom that they are all the same divine being. It is also plausible that we just have a desire to quench the thirst for knowledge that lies deep within ourselves. As for myself, I cannot believe in a being which created a universe and a multitude of worlds in a rather short period of time then deigns to lower itself into becoming a puppet-master and "pulling the strings" of the Earth and all of the people therein. Since this paper touches upon many scientific terms, I feel that in order for the reader to correctly grasp the content I mu ...

... brightness of the stimulus, contrast between the stimulus and background, length of time exposed to the stimulus. * Minimum separable: shortest distance by which two lines can be separated and still be perceived as two lines. "During the day, the earth has a predominantly bluish cast..... I could detect individual houses and streets in the low humidity and cloudless areas such as the Himalaya mountain area.... I saw a steam locomotive by seeing the smoke first..... I also saw the wake of a boat on a large river in the Burma-India area... and a bright orange light from the British oil refinery to the south of the city (Perth,Australia.)" The above obse ...

... to find new ways to cut back on CO2 emissions and not relying that much on forests around the world. A climate change not only threatens to destroy forests, but as these forests die back they will trigger the release of vast quantities of carbon dioxide stored in vegetation and forest soils. This will add further to the climate change problem. Experts hope that this new way to cut back on these CO2 emissions will not be costly and time consuming. Dry air is made up of about 78 percent nitrogen and 21 percent oxygen. For living things, the two most important gases are oxygen and carbon dioxide. All plants and animals in respiration use oxygen. Respiration is ...

... the claim that scientific theory cannot be proven true or otherwise we must first understand what Duhem means by scientific theory. He introduces two possibilities as to the nature of a physical (which we can equate to 'scientific') theory. The first being that it is an explanation of the reality lying behind a group of experimental laws (those that are empirically determined). The second is that a physical theory is simply an abstract system to classify and summarize a group of laws. Taking the first possibility (a belief still held by many today): this seeks to look beneath the sensible appearances and find the reality beneath, which is causing the sensation ...

... in cryogenics, and they are Superconductivity and Superfluidity. Cryogenics first came about in 1877, when a Swiss Physicist named Rasul Pictet and a French Engineer named Louis P. Cailletet liquefied oxygen for the first time. Cailletet created liquid oxygen in his lab using a process known as adiabatic expansion, which is a "thermodynamic process in which the temperature of a gas is expanded without adding or extracting heat from the gas or the surrounding system"(Vance 26). At the same time Pictet used the "Joule-Thompson Effect," a thermodynamic process that states that the "temperature of a fluid is reduced in a process involving expansion below a certain t ...