.... found to be emitted into the atmosphere by solvents, refrigerators, and spray can propellants mainly in the Northern Hemisphere. CFC's disperse throughout the stratosphere and breakdown to release chlorine. Chlorine by itself is a very stable compound, but when in the stratosphere it binds to and destroys ozone. This is a cyclic process and therefor means that one chlorine can destroy many ozone molecules (Figure 1.2) During the winter in the Antarctic the circumpolar vortex, which is a strong westerly circulation around the continent, builds in the stratosphere. This phenomenon causes the interior of the stratosphere to be cut off and the temp .....

.... extreme headaches, and soar throats. These symptoms begin four-sixteen days after infection. After about 2 days of these symptoms you start to "crash". A crash is when you vomit uncontrollably until there is nothing left to vomit (you vomit blood, bile and other liquids of the body), you suffer from diarrhea, limited kidney function, internal and external bleeding, you bleed from every opening on your body, blood fails to clot, so if you get cut in any way your body will never stop bleeding from that wound. Ebola could spread and infect everyone in the world in 48 hours. Marburg, Germany In this small German town people were taking tests on African .....

.... to one place, and let dry ground appear." And it was so. (Gen. 1:9) - - - - Further reading: 1. John H. Schwartz, "Completing Einstein", SCIENCE 85, vol 6, pp 60-64, 1985. 2. Robert Palmer, "What's a Quark?", SCIENCE 85, VOL 6, pp 66-71, 1985 3. Bruce Schechter, "The Moment of Creation", DISCOVER, April 1983, pp 18-25. 4. Lawrence R. Sulak, "Waiting for the Proton to Decay", AMERICAN SCIENTIST, 70, 616-625, 1982. 5. Mary K. Gaillard, "Toward a Unified Picture of Elementary Particle Interactions", AMERICAN SCIENTIST 70, 506-514. - - - - The fo .....

.... 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 second second). Newton then figured that the same force that pulled the apple t .....

.... 2,500 females. Females normally have two X- chromosomes. However, in those with Turner's Syndrome, one X chromosome is absent or is damaged. OTHER NAMES Depending on the doctor, Turner's Syndrome may be diagnosed with one of the following alternative names: 45 - X Syndrome, Bonnevie- Ulrich Syndrome, Chromosome X, Monosomy X, Morgagni-Turner-Albright Syndrome, Ovarian Dwarfism, Turner Type, among others. SYNDROME CHARACTERISTICS A reduced growth in height is the commonest visible characteristic of the syndrome, (the average adult height is 4 feet 8 inches) and may be the only sign before puberty. Their body proportions are normal. Girls with thi .....

.... person's spinal cord where portions of the nerve cells that nourish the muscles are located. As this area degenerates it leads to scarring or hardening ("Sclerosis") in the region. Over 5,000 Americans are diagnosed with ALS each year. There is great variation in the course of the disease. Symptoms usually appear in individuals between the ages of 40-70, though the disease has been reported in both younger and older persons. Survival after the confirming diagnosis is, on average, two to five years. Progression of ALS varies with each individual; therefore, some will live longer--up to 10 years, and about five percent will exceed 12 years. In some c .....

.... The killer is carbon monoxide. Carbon monoxide, or CO as it is also called, is an odorless, colorless, and deadly gas given off when any fuel is incompletely burned by, for example, a furnace or water heater (Marable 97). Unlike a fire where you can immediately see smoke and flames, carbon monoxide poisoning gives no physical evidence of its presence. But, when taught to see and look for the warning signs of carbon monoxide, deaths in the home due to carbon monoxide poisoning can be prevented. Sometimes, in a home the hot water supply is low, or the furnace fails to keep the house warm. A natural reaction in any of these situations would be to .....

.... is 2.0 nm and adjacent bases are separated by 0.34 nm and inclined at 360 relative to each other. This means that each complete turn of the double helix contains about 10 base pairs. 4. The amount of guanine is usually equal to that of cytosine. The monomers of RNA and DNA are called nucleotides. Each nucleotide has three parts: A Five Carbon or Pentose Sugar The sugar will be one of two very similar pentose rings. Ribo contain the sugar ribose. Deoxyribo contain the sugar deoxyribose. The only difference between these two sugars is that deoxyribose contains one oxygen atom less than ribose. Pentose sugars are essential because they are involved in l .....

.... 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 scientific method becomes the qi researchers¡¦ best tool. In addition, while qi and the atom were both conceived by ancient philosophers, the notion of the atom was better developed by scientists than the idea of qi. Therefore, by looking back at the historical progression towards a belief in atoms and the deduction of their structure, we know how scientis .....

.... in plants. My experiment involves testing different brands of plant food on plants to see what brand of plant food makes the plant grow the tallest. I will test three types of plant food on three sets of plants and one set with no food. I will water the plants all the same amount and let all the plants get the same amount of sun, then measure the height of all the plants at the end of six weeks and record the data. The first step of photosynthesis is the absorption of light by a chlorophyll molecule. "The energy of the absorbed photon is transferred from one chlorophyll molecule to another until it reaches a site called a reaction cente .....