.... bells. Bronze resists corrosion, but weathers to a beautiful brown or green colour. Copper is also used for locks, pipes, plumbing fixtures, door knobs, drawer handles, lamps, pots, pans roofing, and jewellery. Certain chemical compounds of copper can be used to help improve soil, and destroy harmful insects. Copper can also be used to help protect other materials against corrosion, and in small amounts is vital to all plant and animal life. The properties that make copper extremely useful include - Conductivity - Silver is the only better conductor, but is too expensive for common use. Copper also conducts both electricity and heat extremely well, which makes it ext ....

.... Please keeps these points in mind, and remember that Aristotle said, "All men by nature desire to know." One day, a promising physics student walks into a professor's office wanting to find out what physics could teach him. This student, only having a rudimentary knowledge of physics, asks, "Can you give me a definition of physics?" The sage rolls his eyes back, and rubs his temples. He replies, "Big or small?" The student baffled by this, prompts again, "Um, physics?" The teacher noticing the ignorance in the room explains, "Physics is split into two major fields: Relativity (Einstein) and Quantum. Thus, they explain big forces in nature and small forces in nat ....

.... creatures hundreds of feet from where it was originally dumped. Such waste includes bags, bottles, cups, straws, cup lids, utensils, six pack holders, cling wrap, fishing line, bait bags, and floats. The second highest cause of water pollution is ship waste. Ships used to take much garbage with them on their ships and dump them. This was very common until the government took action. They were giving sailors up to one million dollars fines for disposing waste. Because of that, ships now carry less garbage with them. Animals are not the only thing being harmed by water wastes. Fishing lines, rope, and plastic nets are being caught in the rutter and the engine, but the ships ....

.... spoken out. Many are realizing that the greenhouse effect is not something to be put aside, yet rather something to be worked on and studied. "The greenhouse effect displays that nature is not immune to our presence" (Kralijic, 1992). Ways must be found to lessen the threat of this growing crisis. If this effect were to continue and grow, the earth’s population would be exposed to serious threats. Carbon dioxide is essential for plants who use it for photosynthesis, yet too much can lead to serious threats. The problem lies in the disruption of the balance between how much carbon dioxide plants intake, and what our population produces. If this natural filtering process is ....

.... and treatment. Affective disorders are characterized by a smorgasbord of symptoms that can be broken into manic and depressive episodes. The depressive episodes are characterized by intense feelings of sadness and despair that can become feelings of hopelessness and helplessness. Some of the symptoms of a depressive episode include anhedonia, disturbances in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide (Hollandsworth, Jr. 1990 ). The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judg ....

.... really fast if a person inhales them or if they are splashed on bare skin. Chemical agents have not been used a lot in warfare since World War I ended in 1918. Other chemical agents do not cause death, but they could make a person unable to fight. Some of these are called blister agents, which cause big blisters on your skin. A blister agent called mustard gas caused a lot of deaths on both sides during World War I. Some other chemical agents can cause temporary blindness or mental confusion. But people still can defend themselves against all of these chemical agents. For example, gas masks, other protective coverings for the body, and injections of antidotes are used as def ....

.... the spectroscope. This tool is used to beak down light in to wavelengths. Isac Newton had a mild idea of this in his day, but nothing of this accuracy or detail. The German Scientist paved the road for theoretical explanations of the star. Some of the most recent tools that have been invented to help study the sun are the coronagraph, the spectroheliograph, the magnetograph, and the spectrograph. These tools have enabled us to better understand the magnetic field of the sun and individual characteristics of the sun. Pictured above is Galileo Composition of the Sun The radiation that Earth receives from the sun is quite remarkable. The radiation that w ....

.... dioxide. Various forms of energy broke down these primary components, and formed amino acids. Eventually, these amino acids drifted into the sea, and combined to form proteins. In this way, the ocean became an "organic soup". Eventually, the proteins in this "organic soup" joined, a membrane grew around the proteins, and the first complete cell was formed (Dawkins 16). According to evolution, this process was the beginning of life. But, there are minimal chances that this organic soup would form. Consider the experiment of Stanley Miller. In 1953, Stanley Miller passed an electric spark through an atmosphere of hydrogen, methane, ammonia, and water vapor; an atmosphere simi ....