.... separated by large oceans. Although the continents fit together nicely, and it would solve many of the earth's mysteries, people still rejected the idea that the continents moved for several reasons. Ignorance and strong religious beliefs played a part in this, but it was mainly rejected because of the lack of a good explanation for the movement of the continents. Wegener's theory for the movement of continents was called continental drift. This was not believable at the time because there was no way the continents could move through the rigid ocean floor. During WWII, people started to explore the ocean floor and discovered evidence that would pr .....

.... the truth. Arthritis is much more than aches or pains; it is a serious chronic illness, which usually lasts a lifetime and demands prompt and regular attention. Arthritis is not exclusive to the elderly; more than 30,000 Canadian children already have some form of it, and another 1,000,000 with the disease between 30 and 50 years of age. Climate and weather has little, if anything, to do with the disease other than a psychological impact on the course of the disease. And, arthritis is a disease for which something can be done. Types As I have already stated, there are more than 115 different types of arthritis. I will include the six most common forms .....

.... 1). One of the features of biological light that distinguishes it from other forms of light is that it is cold light. Unlike the light of a candle, a lightbulb, bioluminescent light is produced with very little heat radiation. This aspect of bioluminescence especially interested early scientists who explored it. The light is the result of a biochemical reaction in which the oxidation of a compound called "Luciferin" and the reaction was catalyzed by an enzyme called "Luciferase". The light generated by this biochemical reaction has been utilized by scientists as a bioindicator for Tuberculosis as well as heavy metals. On going research involving bioluminesc .....

.... After abandoning college because of the style of teaching, he went on to study natural philosophy. He became intrigued by atomists and the theory that all things in nature were made up of particles of matter, also known as atoms. He then returned to Woolsthorpe and continued to study light, gravity and mathematics. These studies eventually lead him to some of the greatest discoveries in the history of science. In science his main discovery was that when white light passed through a prism, it was broken up into a broad spectrum of colors. When that spectrum was shone back through another prism that spectrum became a white light again. Next he passed a si .....

.... in the course of evolution, and is called the background rate of extinction (Lampton 14). Species have slowly evolved and disappeared throughout geological time because of climate changes and the inability to adapt to survive competition and predation. Since the 1600's, however, the rate of extinction has accelerated rapidly because of human population growth and resource consumption (17). Today, most of the world's habitats are changing faster than most species can adapt to such changes through evolution, or natural selection. The current global extinction rate is estimated at about 20,000 species per year, exponentially greater than the background extin .....

.... comes dehydration. The problems increase with a higher dosage. Unfortunately, ecstasy today has a completely different prescription. Teenagers who attend all night dance parties have a "mind-blowing time," according to U.S. Customs Commissioner Raymond Kelly, "primarily use ecstasy". The drug breaks down communication barriers and allows a great recipe for intimate contact, which a lot of young people today strive for. The positive feelings that people report are very similar to that of Prozac (anti-depressant drug) and fenfluramine. MDMA is usually taken orally in the form of pills synthesized by independent labs. They come in different colors, sh .....

.... from which the universe rapidly expanded.1 The Big Bang was the start of time and space. The matter and radiation of that early stage rapidly expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since. Today the universe is still expanding, as astronomers have observed. 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 .....

.... was first used by people around 4000 B.C. in the manufacture of tools because of its malleability and later became an important additive in harder, more useful metals such as bronze (copper+tin; 2500 B.C.) and brass (copper+zinc; 0 A.D.). The growth of copper production in the United States has been a relatively recent occurrence. North American French explorers knew of sources of native copper in the region of Lake Superior and the area natives had copper jewelry and ornamentation. Earnest copper mining began in Simsbury, Connecticut about 1709 and copper was actually exported to England after a source was discovered in New Jersey around 1719. In later .....