... This science is widespread throughout the world and pops up in many different cultures. "Scientific methodology in this field dates from the foundation in London of the Society for Psychical Research (1882) which sought to distinguish psychic phenomena from spiritism and to investigate mediums and their activities." (http://wheel.ucdavis.edu) The research started over one hundred years ago and their goal was to understand why unexplainable phenomena was occurring. "Modern experiments, notably at Duke University under Joseph Banks Rhine, in Britain at the Society for Psychical Research and in Russian research labs, have concentrated principally on extrase ...
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... the body reacts immediately to the chemical nicotine. Nicotine begins to effect a smoker’s blood pressure, the flow of blood from their heart, the heart beat and breathing rate. Cigarette smoke also contains carbon monoxide, the same poisonous gases released from a car exhaust pipe. Carbon monoxide is a colorless and odorless, highly toxic gas that reduces the amount of oxygen that the blood can carry. Combined with the effects produced by the nicotine, it creates an imbalance in the demand for oxygen by the cells and the amount of oxygen the blood is able to supply. Tar is another chemical produced from cigarette smoke. Tar contains at least ...
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... at 95.32%; Nitrogen at 2.7%; Argon at 1.6%; Oxygen at 0.13%; Water at 0.03%; and Neon at 0.00025 %. Martian air contains only about 1/1,000 as much water as our air, but even this small amount can condense out, forming clouds that rise high in the atmosphere or swirl around the slopes of towering volcanoes. Local patches of early morning fog can form in valleys. At the Viking Lander 2 site, a thin layer of water frost covered the ground each winter. There is evidence that in the past a denser Martian atmosphere may have allowed water to flow on the planet. Physical features closely resembling shorelines, gorges, riverbeds and islands suggest that great rivers ...
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... pure substance may also be defined as the temperature at which freezing or melting continues once it has commenced. All solids melt when heated to their melting points, but most liquids can remain liquid even though cooled below their freezing points. A liquid may remain in this supercooled state for some time. This phenomenon is explained by molecular theory, which conceives the molecules of a solid as being well ordered and the molecules of a liquid as being disordered. To solidify, a liquid must have a nucleus (a point of molecular orderliness) around which the disordered molecules can crystallize. The formation of a nucleus is a matter of chance, but once a nuc ...
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... 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 in flares and rockets. Thallium is the 60th most abundant element in the Earth’s crust. There are 3.6 parts of Thallium in every million parts of the Earth’s crust. Thallium compounds are e ...
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... and functional unit for all living organisms. A cell can be a wide range of shapes and sizes, although most cells are microscopic. Inside a cell membrane, a nucleus can be seen. The nucleus is the control center of the cell. Between the nucleus and the membrane, there is a polysaccharide matrix called the cytoplasm, where organelles can be found. The organelles are attached to a framework. The cell’s cytoskeleton. Every living cell has the ability to detect signals from it’s environment. The signals are usually in the form of chemical molecules, that the cell has learned to recognize. The cell decodes these molecules into messages, and acts upon th ...
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... even the heat from oxidation is enough to melt and ignite this metal. Another major reaction of Cesium occurs with water and ice. Ice with a temperature as low as -177 degrees Fahrenheit can trigger a vigorous reaction. Because Cesium reacts so violently with organic compounds, it is considered the most reactive of Alkali metals. There are four principle compounds that make up Cesium’s structure: Cesium Chloride, Cesium Fluoride, Cesium Carbonate, and Cesium Sulfate. The most important compound is Chloride, which is used as a constituent of getter mixtures of vacuum tubes. Cesium is identified qualitatively by it’s blue flame. When determining quantitative amo ...
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... 0.6%, Chlorine 0.2%, Phosphorus Manganese and Carbon are all 0.1%, Sulfur 0.05% Barium 0.04%, Nitrogen 0.03% and the rest of the elements on the periodic table take up about 0.5%. The elements of the crust are graphed below, but only ones that are the most abundant due to the fact that the abundance of the other elements of the crust are too low to graph accurately on one graph. Almost all elements are found as compounds, however Oxygen, Nitrogen, and to a lesser extent sulfur, gold, silver and platinum are the only elements which can be found in almost there raw sate. The atmosphere contains Oxygen and nitrogen, but it only contains a small portion of the eart ...
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... lakes had been destroyed by acid rain. The problem has been most severe in Norway, Sweden, and Canada. The threat posed by acid rain is not limited by geographic boundaries, for prevailing winds carry the pollutants around the globe. For example, much research supports the conclusion that pollution from coal-powered electric generating stations in the midwestern United States is the ultimate cause of the severe acid-rain problem in eastern Canada and the northeastern United States. Nor are the destructive effects of acid rain limited to the natural environment. Structures made of stone, metal, and cement have also been damaged or destroyed. Some of the world's g ...
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... data access enables you to read from DVD the same as a hard-disk drive. The best thing of all about the DVD-ROM drive is the fact that it is backward compatible with standard CD-ROM and CD audio discs. DVD-RAM DVD-RAM stands for Digital Versatile Disc - Random Access Memory, and is the approved format by the Official DVD Forum. DVD-RAM are dual sided and can hold up to 2.6 gigabytes per side. They use phase-change as a recording material, “wobbled land and groove” recording method, embossed pits for header information, Zoned Constant Linear Velocity (ZCLV) rotational control, and is a random-access, non-sequential medium. DVD-RAM-Compatible readers will ...
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