.... for soothsayer and gypsies, but there are times when magic was a form of entertainment. During the seventeenth century magic has become a living for some entertainers. Jugglers, wizards, and fortunetellers often appeared as scrub than a man of talent. These respected entertainers attracted lots of attention, not only because of their flaming clothing, but also because of their talents. In time there were traveling performers. Magicians dressed up and traveled for town to town, setting up stages and booths attracting the attention of the people, as well as their money. Pretty soon this s .....

.... oxygen from air in the lungs, while carbon dioxide passes from the blood to the air. When you hold your breath, the exchange of gases slows, as "stale" air in the lungs is no longer replaced by "fresh" air. Oxygen is actually removed from the blood stream during the exchange of gases. depending on how completely oxygen is replaced by helium, you may lose consciousness quickly and without warning - you may literally pass out while still standing. The usual result is an uncontrolled fall that can cause serious injury, even if normal breathing resumes before brain damage occurs due to .....

.... "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 following background articles were downloaded from American Adacemic Encyclopedia via Dow Jones News Retrevial Service; Nov 12, 1985 UNIFIED FIELD THEORY Classical .....

.... the also affect the colon, the regional lymph nodes, and the mesentery (outside covering of the intestines). The disease can be aggravated by a bacterial infection. It begins with the development of patches of inflammation on the intestinal wall, which can spread from one part of the digestive tract to another. It sometimes only develops in one place and does not spread any further. The inflammation causes the thickening of the intestinal wall, which sometimes causes an obstruction in these areas, or scar tissue, which narrows the passageways. The symptoms of Crohn's disease sometimes ac .....

.... to moderate pain. It is also used as a cough remedy because it suppresses the part of the brain that triggers coughing, and as an anti-diarrheal drug, because it slows down muscle contractions in the intestinal wall. There are possible adverse effects. The most frequently observed adverse reactions include lightheadedness, dizziness, sedation, nausea, vomiting, and sweating. These effects seem to be more prominent in ambulatory patients and in those who are not suffering severe pain. Other adverse reactions include the following: (1) Central Nervous System- Euphoria, dysphoria, weakness, hea .....

.... we need this energy to use our muscles. When we do use our muscles within us, we may not always be sure that heat is given off. Our bodies do not burst into flames but the perspiration on our skin is a clue to what is happening. The movement of the windsurfer has a different explanation. The windsurfer is propelled along by a sail which collects from the winds that sweep along the water. This energy has been produced by the sun which warms the earth's surface and sets the air above in motion. The sun's heat comes to the earth as a form of radiant energy. When the heat reaches the su .....

.... but even more firmly, we are taught to believe each one of us is unique. Is that idea undercut by cloning? That is, if you can deliberately make any number of copies of an individual, is each one special? How special can clones feel, knowing they were replicated like smile buttons. "We aren't just our genes, we're a whole collection of our experiences," says Albert Jonsen. But the idea, he adds, raises a host of issues, "from the fantastic to the profound." When anesthesia was discovered in the 19th century, there was a speculation that it would rob humans of the transforming experience .....

.... of environmental pressures, including climate extremes and variability. Global warming is likely to amplify the effects of other pressures and to disrupt our lives in numerous ways. "Melting icebergs and expanding oceans may cause floods." The Intergovernmental Panel on Climate Change (IPCC) predicts that there will be an increase in sea level by the year 2100 of 1.5 feet . "Twenty Five percent of the world’s population lives less than 1.1 meters above see level." The IPCC also predicts that there will be " droughts, heat waves, expanding deserts, ecosystem disruption and increasingly s .....

.... that contain the ore also contain other rare metals, such as iridium, osmium, palladium, rhodium, and ruthenium. The grains also contain small amounts of iron, copper, chromium, and titanium. A large nugget of platinum will be found only on occasion, like in 1843, a lump weighing over 21 pounds was found in Russia. Russia produces the worlds largest share of platinum-group metals. Other important sources of platinum are located in the Transvaal province in South Africa and in Sudbury, Ont. Colombia and the United States also have sources of platinum. The United States uses about 475,000 .....

.... that in 1993, the lifetime cost of treating a person with AIDS from infection to death is approximately $119,000. Outpatient care, including medication, visits to doctors, home health aids, and long-term care, accounted for approximately 32 percent of the total cost. Persons exposed to may have difficulty in obtaining adequate health-insurance coverage. Yearly AZT expenses can average approximately $6,000, although in 1989 the drug's maker did offer to distribute AZT freely to -infected children. The yearly expense for DDI is somewhat less at $2,000. Therefore, if the AIDS epidemic i .....