.... straight through the foil. However, he obtained very different results. Although many of the particles did in fact go straight through the foil, some of them were deflected at large angles. Rutherford concluded that the deflections of the alpha particles were caused by a center of positive charge that contained most of the atom's mass (the nucleus). He also explained that the particles that went straight through the foil did so because the atom is mostly empty space and that the distance between electrons and the nucleus is vast compared to the size of the nucleus itself. In 1919, he discovered the "artificial disintegration" of nitrogen. His experiments show that unde ....

.... described as a general principle or explanation of presumed fact and offered opinion, which may or may not possibly of positively true. In the United States, laws have been passed several different ways constituting whether Darwin's theory of "survival of the fittest" can be taught in schools, versus religious belief of Divine creation. From 1920 to 1986 the argument continues in the courtroom, and many, many books have been written debating the issue. Let us look at the three theories in depth. The evolutionist theory made known by Charles Darwin, states that humans came from his theory “survival of the fittest.” Charles Darwin based his theory on individual chances th ....

.... in industrial and domestic applications, such as in spray cans, industrial solvents, degreasing compounds, and cooling in fridges. However when released into the stratosphere, such molecules can be broken down by energetic light rays (UV-C radiation) in a reaction that liberates an atom of chlorine, which destroys ozone by oxidising with the Ozone molecules, forming Cl-O and Oxygen. One atom of chlorine can destroy 10,000 ozone molecules! Atoms containing bromine, nitrous oxide, and hydrogen oxide radicals are also primarily dangerous. As a result, the Ozone in the stratosphere has been reduced to such an extent that ozone holes are appearing around the globe, in particular o ....

.... enters buildings through: exposed soil in crawl spaces, through cracks, openings in floors, and through below grade walls and floors. This is the primary source of elevated radon levels in buildings.(5) Outdoor air contains radon, but it is in extremely low concentrations therefore it is not a health hazard. Some wells contain water that has radon dissolved in it. This can be a hazard if the water is agitated or heated, allowing the gas to escape and elevate the levels that are in the building.(6) Health Risk The Surgeon General's office reports that indoor radon gas is a national health problem. This gas causes thousands of deaths every year.(7) These ....

.... All western thought can find its roots in the philosophy and science of the Greeks, even the way we see the world is influenced by the ideologies of Ancient Greece. The Greeks were the first to seek a greater understanding of the world, to know "why" we are not just "what" we are. The Greeks invented science and explored it in its truest form, philosophy. Through the years we have developed tools that we hope can prove or disprove various hypothesizes, to further our understanding of any number of things. We divide science into categories and then sub-divide it even farther, until we can hide the connections and pretend that they really are separate. The difference bet ....

.... which come in many forms - viruses, bacteria, fungi and parasites. The most dangerous of these forms is the virus. Some viruses, such as the common flu, are considered to have a fairly detrimental capacity. The flu can incapacitate a human for several weeks with various symptoms such as bodily soreness, fever, bronchial complications, and even pneumonia. But while these conditions can be painful and frightening, we are usually confident that proper medication and rest will take care of the matter. However there is a much more severe and indiscriminate tyrant, with enormous corrupting influence, capable of infiltrating all of civilization. Scientifically, it is a su ....

.... so that they will attract dirt. The electrons travel through your bloodstream and collect in your finger, where they form a spark that leaps to your friends filling, then travel down to his feet and back into the carpet, thus completing the circuit. AMAZING ELECTRONIC FACT: If you scuffed your feet long enough without touching anything, you would build up so many electrons that your finger would explode! But this is nothing to worry about... unless you have carpeting. Although we modern persons tend to take our electric lights, radios, mixers, etc. for granted. Hundreds of years ago people did not have any of these things, which is just as well because there was no place ....

.... West Virginia have claimed to suffer from health problems, including rashes, respiratory problems and even cancers" (D4). In 1948, in the industrial town of Donora, Pennsylvania, which sits in a valley, had twenty deaths, and nearly 6,000 residents, or 40% of the population, suffered respiratory problems (Edelson 25, 26). New York experienced several killer smogs, which in a later analysis attributed, from the usually severe pollution, 58 deaths (Edelson 26). Not only in the United States are health problems caused by air pollution showing up, but they are also showing up in other parts of the world, like Europe. In 1930, in Belgium's Meuse River valley, a major industri ....