.... comes form the Greek word "thallos". "Thallos" meant "green twig" or "green shoot". Thallium does not have many uses. It is used in photocells because of the electrical conductivity of thallium sulphide. Thallium was originally used to help treat ringworm and many other skin infections. It was then limited because of the narrow margin between the benefits and its health risks. Thallium bromide-iodide crystals are still used as infrared detectors. Thallium sulphate used to be widely used as a pesticide and an ant killer. It was odorless and tasteless and worked well, but it was found to be too toxic. Thallium slats which burn with a bright green flame are used i ....

.... “buttons,” made from the dried tops of the Peyote cactus. Other forms of use include teas, smoking, intravenous injection, and in powder form using capsules. It is sold as a street drug and it is for readily available in the south western states and in areas where it is used in ceremony. Mescaline carries a wide margin for dosage error and has little or no withdraw effects, although the dangers do increase with higher dosages. A light dose (100-200mg) can give the user feelings of giddiness or anxiety, and a moderate dose of Mescaline (200-300mg) begins to impair the senses. Strong doses (300-500mg) will induce hallucinations and effect the user's perceptions of c ....

.... affixed the article `al', thus giving al-khemeia, or . HISTORY OF From an early period the Egyptians possessed the reputation of being skillful workers in metals and, according to Greek writers, they were conversant with their transmutation, employing quicksilver in the process of separating gold and silver from the native matrix. The resulting oxide was supposed to possess marvelous powers, and it was thought that there resided within in the individualities of the various metals, that in it their various substances were incorporated. This black powder was mystically identified with the underworld form of the god Osiris, and consequently was credited with magical proper ....

.... the Jet Stream is altered so that it blows directly over the Atlantic Ocean, thus dramatically decreasing hurricanes for that year. But when the warm waters brought on by El Nino recede, the cold waters of the Pacific Ocean move eastward and bring with it La Nina, the little girl. La Nina has a variety of different names such as El Viejo, anti-El Nino or simply "cold event". When the warmer Pacific water is pushed westward by the trade winds, that water flows toward Asia and makes room for the colder, deep sea water, to rise and flow to the Americas. Because cold water doesn't evaporate, there is a large reduction in the formation of storm clouds. The weather pattern ....

.... The Lowell Observatory was mainly founded because of Dr. Percivals' interest in discovering life on mars. Lowell observatory was the first observatory in Arizona. It is a great family attraction with its location being in the popular Tourist City of Flagstaff; the observatory looks over the city. You are guided through a tour and experiments, and also are allowed to use the telescopes they have located on Mars Hill. There are a total of nine telescopes, eight which are at the observatory, of these many of them are historic, such as the 24" Clark Refractor that is 102 years old. The Pluto telescope dome and John Vickers McAllister telescope dome, ....

.... The biographical interviews lasted one or two hours and ranged from six to ten interviews for each subject. The questions asked focused on the subject's life accounts in their post adolescent years. The interviews focused on topics such as the men's background (education, religion, political beliefs) and major events or turning points in their lives. Levinson's concept of life structure (the men's socio-cultural world, their participation in their world and various aspects of themselves) is the major component in Levinson's theory. The life structure for each person evolves through the developmental stages as people's age. Two key concepts in Levinson's m ....

.... has a completely different prescription. Teenagers who attend all night dance parties have a "mind-blowing time," according to U.S. Customs Commissioner Raymond Kelly, "primarily use ecstasy". The drug breaks down communication barriers and allows a great recipe for intimate contact, which a lot of young people today strive for. The positive feelings that people report are very similar to that of Prozac (anti-depressant drug) and fenfluramine. MDMA is usually taken orally in the form of pills synthesized by independent labs. They come in different colors, shapes, and sizes. The designer drug may also be taken in the form of a powder and injected into the blood stream fo ....

.... During this process oxygen is released which is then breathed in by humans and animals. This procedure is repeated over and over and a natural balance is obtained. However this natural balance is disrupted by human activity. People of the world are putting more than 5.5 billion tons of CO2 into the atmosphere every year. 75% of this is caused from the burning of fossil fuels. These fuels are burnt all the time to run factories, power plants and vehicles. The main sources of CO2 emissions are electric utilities, residential buildings, industry and transportation. The other 25% is induced by the destruction of the world's forests. The reason for this is that there ....