.... While wind and solar power have no waste products, they require enormous amounts of land to produce any large amounts of energy. I believe that geothermal energy may be an alternative source of energy in the future. There are many things that we must take into consideration before geothermal energy can be a possibility for a human resource. I will be discussing some of these issues, questions, and problems. In the beginning when the solar system was young, the earth was still forming, things were very different. A great mass of elements swirled around a dense core in the middle. As time went on the accumulation elements with similar physical prope .....

.... after it was discovered that progesterone blocked ovulation. The first pills contained more than 20% more estrogen and more than 10% more progesterone than pills today. This significant reduction has decreased the adverse side effects of the drugs greatly. Currently the birth control pill has the highest efficacy rate, with a 99.9% effectiveness rate for combination regimens and a 99.5% effectiveness rate for progestin only regimens in clinical trials. It is extremely important to take the pills on a regular basis and at a regular time of day (say after dinner or with breakfast every day) as effectiveness drops with improper usage. The birth control pill .....

.... a great threat to our planet and if nothing is done to resolve this problem soon, the results may be disastrous. There is a layer of chemicals twenty kilometers up in the stratosphere called the ozone layer. This layer protects the inhabitants of earth by reflecting much of the suns harmful ultra violet (UV) rays. Without this layer above us, many living things including humans could not survive. The ozone layer is currently depleting and the reason for this is believed to be caused by a few things. Deforestation, fertilizer use and fuel combustion are minor contributors to this problem while chemicals such as chloroflourocarbons (CFCs), halons, carbo .....

.... Ontario Hydro and Canadian General Electric to build Canada’s first nuclear power plant called NPD for Nuclear Power Demonstration. In 1962, NPD began supplying the province of Ontario with its first nuclear generated electricity. Ontario had found it’s new source of electricity, and they were not fully aware consequences that would happen after many years of use. Power projects (later AECL CANDU), based in Toronto. Ontario and Montreal, Quebec became responsible for implementing AECL’s nuclear power program and marketing CANDU reactors. Nuclear power was cheap, if you did not have to worry about the waste. This was the answer to Ontari .....

.... theories. 1.)All mater is composed of atoms 2.) Atoms of same elements are the same 3.) Atoms of different elements are different and 4.) Atoms unite in definite whole number ratios when they form compounds. Though his theory has some errors, these theories are the basis for our understanding of atoms and chemistry. One mistake of Dalton was his belief that atoms were round and hard. This became the primary ambition for scientists after Dalton, to find out the structure of an atom. In 1897, Joseph John Thomson discovered electrons. Using a tube, magnets and charged plates, he sent ray particles through various experiments changing the position of the charg .....

.... they practice and what kind of foods they eat but where they are born. total opposites. Now all Americans must be able to speak English, or at least bad English, and they must also follow the laws set fourth by out four fathers, but no two Americans are alike. Take San Francisco for example. Twenty years ago, it was the center for the hippie movement, but just down the street from Haight and Ashbury there is a place called China Town. A place placed filled with Chinese Americans, shops and temples that could be easily mistaken for buildings only found in China . In Ohio, one could meet a Caucasian farmer, a African American businessman, an Amish family .....

.... This aspect could one day benefit millions of people around the world. Chemical Process: Teams from universities successfully inserted instructions for building an anti-fluorescein antibody in the DNA of bacteria. This antibody binds with fluorescein molecules. Into this chunk of material, they inserted instructions for buildin g a metal-ion binding sight. They discovered where to put this slot by simulating the antibody on a large computer. The resulting product revealed an anti-fluorescein antibody which binds to metal ions. After physically inserting the genetic code in to E. coli. bacteria, the researchers had a large batch of a new compound w .....

.... My Dad, who had been doing other work on the island, was completely in the dark when it came to understanding these animals. He kept asking me questions about the whales and their habits. It was an interesting change of pace to be my Dad’s teacher. This was great because I actually knew something that my Dad did not know, which was very rare. Though that was great, it was not the best part of my adventure. The best part of my experience was in the water. We set out to sea around 5:00pm and returned at around 9:00pm. Those four hours were probably the best four hours of my adolescent life. When I was out on the kayak I saw so many killer whales it was .....