.... cases, the wave length of the light radiated is longer than that of the ultra-violet excitation but a few exceptions have been found. The quantum theory attempts to explain this property by contending that a certain outside excitation causes an electron to jump from one orbit to another. It is then in an unstable environment causing it to fall back into its original orbit. This process releases energy, and if it is in the visible part of the spectrum, we have a transient light phenomenon. Ultra-violet light is an exciting agent which causes luminescence to occur. There are many materials which exhibit fluorescent characteristics. Many of which are even organic. Teeth, ....

.... levels, fatigue, and cosmetics. All of these are believed to aggravate (Facts 1). When faced with the problem of there are a few simple things one should do to keep the case mild. First you should treat the early. The longer a person waits the worse the problem can get. Scarring may appear if one waits too long to take car of their situation. Once a pimple in noticed, don't squeeze or scratch at it. This will help illuminate the spread of more pimples and scarring. Your hands carry many bacteria that will help to spread infection. This is not a good thing to do (Facts 2). When using cosmetics it is best to stay away from nonwater-based products and products that ....

.... wrote, it is the story of the sight of an apple falling to the ground (he was resting at Woolsthorpe because of the plague at Cambridge) that caused Newton to wonder if this same force was what held the moon in place (Gamow 41). Newton knew that an object fell to the earth at a rate of about 9.8 meters (32 feet) per second second as pointed out by Galileo. Thus "the apple that fell from the tree" fell to Earth at about this rate. For the first basic explanation of this we will assume a linear plane, one in which all forces act in only one direction. Therefore when the apple fell it went straight towards the center of the earth (accelerating at about 9.8 meters per seco ....

.... support normal respiration. Oxygen-enriched air is used in open-hearth furnaces for steel manufacture. Most of the oxygen produced in the United States is used to make a mixture of carbon monoxide and hydrogen called synthesis gas, used for the synthesis of methanol and ammonia. High-purity oxygen is used also in the metal- fabrication industries; in liquid form it is of great importance as a propellant for guided missiles and rockets2. I have chosen the element "Oxygen" because without Oxygen, human beings would not be able to live. Oxygen is probably the single most important element in the world as we know it. With out Oxygen we would not breath, have water, eat plants. ....

.... a thermophilic organism." (from http://www.genes.com/pcr/pcrinfo.html) Dr. K.Mullis recently received the Nobel prize for inventing the technique. This is how they go about doing this: They first get their small DNA sample. Then they mix all the chemicals (this includes the primer, etc). Then they have to run it through the PCR machine. Here is a (rather detailed) description of the process: "The cycling protocol consisted of 25-30 cycles of three- temperatures: strand denaturation at 95degC, primer annealing at 55degC, and primer extension at 72deg C, typically 30 seconds, 30 seconds, and 60 seconds for the DNA Thermal Cycler and 4 seconds, 10 seconds, and 60 second ....

.... formed them. Early during this formation, Mercury probably differentiated into a dense metallic core, and a silicate crust. After the intense bombardment period, lava flowed across the surface and covered the older crust. By this time much of the debris had been swept up and Mercury entered a lighter bombardment period. During this period the intercrater plains formed. Then Mercury cooled. Its core contracted which in turn broke the crust and produced the prominent lobate scarps. During the third stage, lava flooded the lowlands and produced the smooth plains. During the fourth stage micrometeorite bombardment created a dusty surface also known as regolith. A few larger meteo ....

.... animals as the form of fat. Lipids are always found in fat because when you get a build up of lipids it forms fat. Lipids have many uses amongst plants and animals. The main use of these are for energy and storing energy. When they store energy they make triglycerides also known as fat. There are also many other uses such as insulation and protection. They are also used in making cell membranes. They make it so that the cell can maintain it’s shape by keeping water and water-soluble compounds from passing through it. The lipids that are waxy are usually used to make protective coatings on the surface of plants and animals. Since a lipid is an organic compound it co ....

.... affected are eighteen to twenty-four months. Eighty percent of the cases involve children ages four and under. As shown in Figure 1, those affected are children usually age four or less. The graph of Figure 1 clearly shows that there is the greatest percentage of those diagnosed at the age of three or less. is very rare over the age of ten and any time that it is diagnosed to a patient above that age it should be interpreted with suspicion. The diagnosis may not be completely accurate because there is still as of yet no definitive way to test for , only the doctor’s interpretation of the symptoms. In the United States approximately three thousand patients will be hospi ....