.... the Old English word geolo (yellow) ? Symbol Origin – From the Latin word aurum (gold) ? Uses – electronics, jewelry, coins ? Obtained From – crust of the earth, copper ores Atomic and Chemical Properties: In it’s usual state – atomic mass number 197 – gold is stable. However, there are radioactive (unstable) isotopes of mass number 186 to 196 and 198 to 203. Gold normally exhibits a chemical valence of one or three. Gold is the “noblest” of the noble metals (gold, platinum, palladium, and rhodium), so termed because of .....

.... were described. It was identified by Albert Magnus about 1250, and he described the way to manufacture it. Since then the method has scarcely changed: the mineral arsenopyrite is heated and decomposes with the liberation of gas. The gas can be condensed on a cold surface. Metallic was first produced in the 17th century by heating with potash and soap. General Properties is very similar to antimony and bismuth. It exists in bright, metallic forms that are stable in air. It is found free in nature or in combination with other elements, usually sulfur. It is most often u .....

.... The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains the same average density of matter forever. There are observational evidences found that can prove the Big Bang model is more reasonable than the Steady State model. First, the redshifts of distant galaxies. Redshift is a Doppler effect whi .....

.... An examination of the fossil record of the hominines reveals several biological and behavioral trends characteristic of the hominine subfamily. Bipedalism Two-legged walking, or bipedalism, seems to be one of the earliest of the major hominine characteristics to have evolved. This form of locomotion led to a number of skeletal modifications in the lower spinal column, pelvis, and legs. Because these changes can be documented in fossil bone, bipedalism usually is seen as the defining trait of the subfamily Homininae. Brain Size and Body Size Much of the human ability to .....

.... control which was the plant in the dark. Results and conclusion: My hypothesis was correct. As you can see from the data graphs at first the seeds germinated at the same rate until the tip of the radicle broke trough and was visible. Afterwards the seed which was in the light grew more rapidly then the seed which was in the dark. I think this happened because when the seed is in the early stages of germination it does not use light to grow but is controlled by phytochrome. Which is a hormone that controls the germination of a seed before it reaches light. After the radicle br .....

.... marked by a gradual decline in brain function that gets worse with time. It used to be assumed that this change was a normal part of aging that we called senility. Some people develop this condition when they are as young as 40 years of age. However, the disease is most common in persons over the age of 65. It is estimated that approximately 10 percent of persons over 65 years of age may have Alzheimer’s disease and that in persons over the age of 85, up to 50 percent may be affected. Alzheimer’s disease is not a normal part of the aging process. It is not contagious, a .....

.... 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 Ontario’s power problems, so they invested in the newest source of power at the time. Most people believed that nuclear power was a good change in Ontario’s power structure, and there would be no real problems in the future. Ontario needed a new source of power in the 1950s; they found it in nuclear power a .....

.... the field where he feels he lost everything. On this list he includes his honor, his best friend, and all faith in himself. For O'Brien, evidence of the parasite is not solely in his return Vietnam, but rather a constant personal preoccupation that seems to flow through the collection of stories. O'Brien shows how the memories of the war take on a parasitic form, and uses himself as an example. In the chapter ³Speaking of Courage², O'Brien introduces a character by the name of Norman Bowker. In the story Norman finds him self home after serving his time in Vietnam. Even thoug .....