.... concentrated in independant minerals, except for gallite. It is extracted as a by-product from zinc blende, iron pyrites, bauxite, and germanite. Silvery white and soft enough to be cut with a knife, gallium takes on a bluish tinge because of superficial oxidation. Unusual for its low melting point ( about 30 degrees C, 86 degrees F ), gallium also expands upon solidification and supercools readily, remaining a liquid at temperatures as low as 0 degrees C ( 32 degrees F ). Gallium has the longest usefull liquid range of any element. The liquid metal clings to glass and .....

.... pane). 6. Nearly 1,000 kinds of bats account for almost a quarter of all mammal species, and most are highly beneficial. 7. Worldwide, bats are the most important natural enemies of night- flying insects! 8. A single brown bat can catch over 600 mosquitoes in just one hour! 9. Tropical bats are key elements in rain forest ecosystems which rely on them to pollinate flowers and disperse seeds for countless trees and shrubs. 10. Bat droppings in caves support whole ecosystems of unique organisms, including bacteria useful in detoxifying wastes, improving detergents, and produ .....

.... is our earth is constantly being manipulated to create the perfectly balanced “mixture” (Huber). Since there will never be a perfect balance or “mixture”, what is the point of even trying? Maybe they are right in saying that we will never find the perfect mixture, but this negative attitude is part of the problem. Nothing will be accomplished unless we reject apathy and negativity. One writer, T.H. Watkins, has criticized the idea of putting a “price tag” on the earth. He thinks that it is wrong to assign a value to out planet. How can we possibly give a monetary value t .....

.... in minutes from the origin of transfer. That is, the amount of time it takes for a particular gene to be transferred from one bacterium to another indicated how far it is from the origin of replication. METHODS AND MATERIALS: Media Preparation: The starting material was Medium 56-glucose agar (MM560). The components of the MM56 are found in figure 1. From this, we made two types of media, complete and selective. The reagents used, along with their stock and final concentrations are found in figure 2. The formula: Stock volume = [(Final concentration)(final volume)] / (stoc .....

.... a short period of higher blood pressure then they normally have. In an experiment done by the Harvard Medical School in 1990 say that has no direct link to infertility either. Nor does it have an effect on a pregnant woman and/or her unborn child. In addition all of the talk that says will stunt a child's growth is just rumors. is said not to affect children any differently then it does adults. In another article entitled Coffee may not be so bad… in Science News, November 25, 1995, the author thinks that is an energy booster for athletes. At Oregon Health Sci .....

.... form it will have large impact on the growth or the preservation of certain wildlife. NO DEFENCE Areas in Ontario mainly southern regions that are near the Great Lakes, such substances as limestone or other known antacids can neutralize acids entering the body of water thereby protecting it. However, large areas of Ontario that are near the Pre-Cambrian Shield, with quartzite or granite based geology and little top soil, there is not enough buffering capacity to neutralize even small amounts of acid falling on the soil and the lakes. Therefore over .....

.... ozone is toxic! Undiluted ozone is bluish in colour. Liquid ozone is bluish-black, and solid ozone is violet-black. Oxygen is very reactive and capable of combining with most elements. It is essential for respiration of all plants and animals and for practically all combustion. history of oxygen Leonardo da Vinci suggested that air consists of at least two different gases. Before then, air was felt to be an element in its own right. He was also aware that one of these gases supported both flames and life. Oxygen was prepared by several workers bef .....

.... and how the public thinks of themselves, God and the outer limits of space! Roswell New Mexico was in the middle of the desert. Here was a vast open land where one could see miles around. On this afternoon something very strange was about to happen. In the clear skies of Roswell a very large craft ended its flight. Was this a weather balloon or an Unidentified Flying Object? There were many eye-witness reports of alien creatures lying next to their destroyed crafts. One or two may have survived for a few days. The military quickly cornered off this area, removing the .....