In the United States intensified the debate about cigarette smoking and meaningful alternatives. The following editorial is from the renowned scientist Dr. Elizabeth Whelan. They criticized the fact the activities of the U.S. Food and Drug Administration (FDA). The FDA does one, from the perspective of Whelan, unjust campaign against the Electronic Cigarettes . Whelan [...]

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Kynar is special material that is made from polyvinylidene fluoride (PVDF). It is a pure and highly non-reactive thermoplastic fluoropolymer. It is used for many different purposes, primarily service applications in wire installation, jacketing, and chemical handling. It has amazing cut-through properties and abrasion resistance, which is combined with high dielectric strength. This dense, high-purity [...]

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It took more than 500 scientists and seven years of research, but the first global earthquake hazard map is now complete. How come it took seven whole years? Well, for starters, the scientists had to contend with forces much greater than earthquakes. Try politics. The above image shows the pattern of major fault lines throughout [...]

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WHAT IS SCIENCE Science presumes, through careful, systematic study, that things and events in the universe occur in consistent, comprehensible patterns. Scientists believe that through the use of the intellect, and with the aid of instruments that extend the sens es, people can discover patterns in all of nature.

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The principal question We make tea everyday, but we are not always attentive to the tea leaves in hot water. It is interesting – why do tea leaves now came the surface and now sink to the bottom in boiling water? My main concern is to explain why some tea leaves sink and some tea [...]

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Introduction My investigative question was: Does the temperature of water affect the time it takes for the water to freeze? Hypothesis Materials Water 3 containers (similar) Candy Thermometer (to measure temperature of water) Watch (to measure time it takes for water to freeze) Tablespoon (to measure the amount of water to put in the container) [...]

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Jack Hanna has become somewhat of a household name. Children all across the country tune in to watch his escapades in the syndicated weekly television show Jack Hanna’s Animal Adventures; night owls stay up late to watch him swap jokes and show off exotic animals with David Letterman; visitors to the Columbus Zoo and other [...]

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One year, the faculty at my elementary school decided to take everyone-it was a small school-to the Exploratorium in San Francisco. We had our worksheets, we divided into small groups, and we were allowed to wander about and look at whatever struck our fancy. I remember being somewhat reluctant at first to actually touch the [...]

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Objective To learn about static electricity. Materials Two balloons, Tape, Two four-foot strings, and a Piece of dry wool cloth. Procedure Inflate the two large balloons and tie them to the ends of the strings. Hang these two balloons from the ceiling with a piece of tape. Adjust the length of the strings so that [...]

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Objective To learn about the characteristics of water. Materials Clear glass, and paper clips. Procedure Fill the glass with water until it is completely full. At this point you can predict, or guess, how many paper clips you will be able to put into the glass until the water over flows. Start placing the paper [...]

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