.... and heating. Due to the persistent problem of limited fuel, inhabitants looked for a way to prolong the fuel. (Thwig 29-34) The next step in lighting that followed was a candle. Candles offered one main advantage over the fire by itself, fuel. A candle was able to provide a long burning light and was relatively inexpensive to produce. Candles were originally made from whale fat. The flame would burn and would slowly use the wick as a fuel and would burn much slower because the wax slowed the burning down. (Thwig 35-49) The next form of lighting that followed the candle was the oil lamp. The oil for the lamps was also made from whal .....

.... beating. We did begin to produce more plutonium but the majority of the substance was used towards our nuclear weapons programs. Along with reactors, sometimes comes a meltdown which can cause harmful effects if it isn't controlled quickly enough. After such instances as the Hanford, Washington reactor meltdown and the accident in the U.S.S.R. at the Chernobyl site, no one wanted to hear about the use of plutonium. The United States government banned nuclear testing and also ended the production of plutonium. (Ref. 5) Now we are in a dilemma. We are in need of our future sources of energy to power our nation. We are r .....

.... millions of years. Evolutionists say that dinosaurs came from six million years back. They also say that the Earth is four to six billion years old. They say that fifty million years ago there was horses no bigger than dogs, and birds as tall as man, three hundred million years ago giant dragon flies buzzed around in the large forests, six million years ago small animals, called trilobites, lived in the sea and were rulers of the world. Evolutionists think that the world started off with just plants on it, then came legged animals from the sea that took over. They feel that a certain kind of fish evolved into the first four-fo .....

.... from the host on which it feeds and the predator derives nourishment from the prey on which it feeds(Nitecki 1983). Parasitism is different from most normal predator prey situations because many different parasites can feed off of just one host but very few predators can feed on the same prey(1973). In parasite-host relationships most commonly the parasite is smaller than the host. This would explain why many parasites can feed off of one single host. Another difference in parasite-host relationships is that normally the parasite or group of parasites do not kill the host from feeding, whereas a predator will .....

.... oil-water system stabilized with surfactants. The diameter of droplets in a microemulsion may be in the range of 100 A to 1000 A. Microemulsion may be formed spontaneously by agitating the oil and water phases with carefully selected surfactants. The type of emulsion produced depends upon the properties of the oil and surfactants utilized. Ointment: Semisolid preparations intended for topical application. Most ointments are applied to the skin, although they may also be administered ophtalmically, nasally, aurally, rectally, or vaginally. With a few exceptions, ointments are applied for their local effect on the tissue mem .....

.... of parallel and series resistors can be analyzed to find the current and voltage at each point of the circuit using 2 basic rules formulated by Kirchhoff. 1) The algebraic sum of current at any branch point in a circuit is zero. 2) The algebraic sum of potential difference, V, around any closed loop in a circuit is zero. These rules and equations provided by the Ohm's law and the Kirchhoff rule can be experimentally tested with the apparatus available in the lab EXPERIMENTAL METHOD The apparatus used in the experiment includes a Voltmeter, an Ammeter, some connecting wires and a series of resistors and light bulb with .....

.... planet's cloud-covered surface is hot enough to melt lead. Water vapor is an important "greenhouse" gas. It is a major reason why humid regions experience less cooling at night than do dry regions. However, variations in the atmosphere's CO2 content are what have played a major role in past climatic changes. In recent decades there has been a global increase in atmospheric CO2, largely as a result of the burning of fossil fuels. If the many other determinants of the Earth's present global climate remain more or less constant, the CO2 increase should raise the average temperature at the Earth's surface. As the atmosphere wa .....

.... in his famous perodical classification of the elements by chemical properties and increasing atomic mass. Experimentation with uranium lead to many discoversies such as the X-ray by Wilhelm Röntgen, on November 8, 1895. Wilhelm Röntgen, was awarded the first Nobel prize in 1901 for the development of the X-ray. Uranium is weakly radioactive, decaying slowly but inexorably at the rate of one milligram per tonne per year. It is transformed into inactive lead through a chain of radioelements or daughters, each of which has a characteristic disintegration rate, a constant of nature that man has never been able to alter. The p .....

.... and recycling has not been done as much as it should be. In New York city we have one of the world’s most largest and most crowded landfills which is proven in the article. Fresh Kills landfill, on Staten Island is extremely big but will be closed in a few years. I New York State there were 1600 landfills in the 1960’s and today the figure is in the hundreds. Trash is a big problem in our community and is still increasing. The problem of trash needs to be fixed and there are some things that we can do. One of the things we can do to help this problem is make less trash. Many things are overpackaged and if there is l .....

.... of those with ADHD will also be discussed. In accordance with Dulcan et al. (1997) ADD, ADD-H, ADHD, although not identical, will be considered interchangeably due to similarity. Characteristics and Testing of ADHD Intelligence Even though ADHD occurs in people of every intelligence, a majority of children affected experience academic problems. These children may have specific learning disabilities, such as dyslexia, or may have multiple learning problems (Beiderman et al., 1993). In a study by MacLeod et al. (1996) comparing ADHD children with those unaffected, those with the disorder performed significantly worse t .....