... of producing an almost perfect polymer chain extension. The polymer poly-p-benzamide was found to form liquid crystalline solutions due to the repetitiveness of its molecular backbone. The key for the structural requirement for the backbone is para orientation on the benzene ring, which allowed for rod-like molecular structures. This technology was used when Du Pont released aramid fiber in 1971. What is it? Kevlar is an aramid, a term invented as an abbreviation for aromatic polyamide. The chemical composition of Kevlar is poly para-phenyleneterephthalamide, and it is more properly known as a para-aramid. Aramids belong to the family of nylons. Common nylons, ...
... and grain produced an extremely pleasant effect. Among primitive peoples, alcoholic drinks increased the excitement of tribal festivals. In more civilized nations, beers and wines in the daily diet were believed beneficial to health. During the 1800’s, a movement began in the United States to prohibit the manufacture and sale of alcoholic beverages. A constitutional amendment banning the beverages went into effect in 1920, but thousands of Americans defied the prohibition law. In 1930, the federal government estimated that about 800 million gallons of alcoholic beverages were being produced in the country annually. The prohibition amendment was repealed i ...
... Fordism, a new age technological revolution, which profoundly effects social structure and values. Some issues that will be addressed are: elimination of work in the traditional sense, longevity, early retirement, the elimination of cash, the restructuring of education, industry and a movement to global politics, economics and world government. In particular this paper will suggest that the Christian Judao work ethic with society’s goals of full employment in the traditional sense is no longer appropriate, necessary or even possible in the near future, and that the definition of work needs to be far more liberal. It argues that as a post market era approach ...
... to form, where 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 ...
... mg of potassium, 2000 mg of sodium, 65 g of protein, 1.5 mg of thiamin, 1.7 mg of riboflavin, 20 mg of niacin, and 18 mg of iron. Nutritionists of today simplify this into an equation of 40% carbohydrates, 30% fats, and 30% protein that the entire day’s meals should be divided into. The total calorie intake must increase for active persons from 2200 to 2200 plus the total number used while exercising. This will ensure replenishment of the body’s system. With the wide variety of athletic competitions, the specific meal a competitor may need to eat to benefit themselves differs widely, as do the events. The last meal or two are extremely important in ...
... pulls it to the Pacific Ocean. The Columbia is continuously cutting into the terrain that it flows through. Over millions of years water rushed through the Columbia Basin to form the Columbia River. Water carries soil, silt, and debris downstream. The constant movement of material in the river cuts and shapes the river basin into the land. This movement is a slow and inefficient use of energy. According to White, only two percent of water's potential energy results in the work of erosion. The other ninety-eight percent of water's energy was lost as water molecules rub against themselves, the river bed, and the river banks. This energy was released as heat ...
... and purification plant. From 1929 until 1960 the federal government was the only domestic helium producer. In 1960, Congress amended the Helium Act to provide incentives to natural gas producers for stripping natural gas of its helium, for purchase of the separated helium by the government, and for its long-term storage. With over 960 million cubic meters (34.6 billion cubic feet) of helium in government storage and a large private helium recovery industry, questions arise as to the need for either the federal helium extraction program or the federally maintained helium stockpile. In a move which would take the federal government out of the helium business, C ...
... at a certain frequency. It travels in a straight line, and is subject to refraction. All of these characteristics are found in waves of any type, from radio frequency waves, up to Gamma and X- rays. Light, however, also exhibits qualities characteristic of particles such as neutrons and protons. A photon, or quanta, is the "packet" of energy that is sent in a light wave. Like a particle, the photon is believed to have a finite mass, and has the ability to affect other matter. As light strikes a photovoltaic solar cell, it knocks electrons in the silicon atoms on the surface into a higher state of energy. When these return to their normal, or "ground" state, ener ...
... families. es mate for life and mate once a year. The families have home territories that they rarely leave. families may co-operate to catch large animals. es chase their prey. They wear them out in a long chase because they arenÕt very fast runners. Large animals are chased until the es can catch them or until the weaker ones drop back. es donÕt always get their prey, however kangaroos can lean back on their tails and kick hard enough to rip open a Õs stomach. The gestation period of the is about 63 days, and the litters average about 5 to 8 pups. After 2 weeks, the mother will throw up food for the pups to eat. After 3 weeks, both parents will b ...
... is a curve of colored light which is seen in the sky. Rainbows can be seen in moonlight or in artificial light. They are caused by the sun shining through tiny drops of water in the air. A rainbow's brightness depends on how large the drops are. The larger the drops are the brighter the rainbow will be. Many people think that a rainbow is only made of six colors, but it is really make of seven. The colors in order are red, orange, yellow, green, blue, indigo, and violet. A primary rainbow is a rainbow with red on the outside and violet on the inside. The largest rainbow visible to observers on land is a semicircle, but many times you can only see half o ...
