.... of the star drops and it can no longer support its own weight. In a monstrous explosion, the outer layers are thrown off. And, at this same moment, the core collapses. This can happen rather quickly because gravity can crush an object 10,000 miles across to an object only 10 miles across in about one second. During the time that a black hole is created, the star shrinks down to an infinitely small and infinitely dense point know as the singularity. At this point, all we have ever known about the universe breaks down. Around the singularity there is an imaginary circle called the e .....

.... that cancer needs to be caught early is because it will spread. Cancerous cells lack the sticky coating that causes normal healthy cells to stay together because cancerous cells lack it they can break off and implant somewhere else in the body. The cancerous cells that break off from the primary tumour are usually carried through the blood. What causes cancer cells to be abnormal? They create extra chromosomes and more DNA then normal cells do. Lung Cancer What usually happens with lung cancer is that the cilia in your throat that usually help keep chemicals and other harmful pa .....

.... problems that worsen existing difficulties”(TWHSTSV 2). When one person sees another running about wildly and finds out what the cause is, he or she will do the same; until eventually the idea spreads to the entire population. Some problems that cause these are “overly strict regulations, lack of open communication between the authorities and the residents, as well as inadequate healthy recreational outlets”(Hayes 1). All these issues are things that if performed, can help prevent or calm an outbreak of mass . In the Salem Witch Trials, the “existing difficulties .....

.... also found in the earth¹ s crust. It was discovered in 1898 by Sir Walter Ramsey and Morris W. Travers. Its uses include electric signs,lamps,and lasers. Argon is the most abundant and most used noble on earth. It was discovered by Lord Rayleigh and by Sir Walter Ramsey in 1894. Argon makes up about 1.2 % of the earths atmosphere. It is found naturally in rock and in the air. It is used for electric light bulbs and floursent tubes. It is also used a lot in industry. Krypton a very rare noble was discovered by Sir Walter Ramsey and by Morris W. Travers. Traces of it are found in natu .....

.... striving for survival. However, man was better equipped with certain traits that allowed him to pass through the filter of natural selection. Man was supplied with both physical and intellectual traits that were responsible for allowing him to surmount the other species living beside him. He was able to use his physical traits in order to become the greatest predator, and severely diminish the possibility of become another species prey. His physical traits were also very adaptable and so man was able to change with the environment and continue to flourish, as other species became extin .....

.... in order to regenerate these muscle fibers. John Centore2 Dr. Jain Anatomy & Physiology The many nuclei of skeletal muscle fiber are located underneath the sarcolemma, which is the fiber’s plasma membrane. Thousands of invaginations of the sarcolemma, which are called T Tubules, Tunnel from the surface to the center of the muscle fiber. These T Tubules are open to the outside of the fiber and are filled with extra-cellular fluid. Muscle action potentials propagate along the sarcolemma and through the T tubules and quickly spread through the muscle fiber. This process ensures t .....

.... EQUILIBRIUM .................................... 43 VALUE/LIMITATIONS: THE THEORY OF BIOLOGICAL EVOLUTION .... 45 ALTERNATE EXPLANATIONS OF BEING ........................... 47 CONCLUSIONS ............................................... 48 INTRODUCTION Theories explaining biological evolution have been bandied about since the ancient Greeks, but it was not until the Enlightment of the 18th century that widespread acceptance and development of this theory emerged. In the mid 19th century english naturalist Charles Darwin - who has been called t .....

.... of hundreds when the neutron is slowed down through a series of elastic collisions with light nuclei such as hydrogen, deuterium, or carbon. This fact is the basis for the design of practical energy-producing fission reactors. In December 1942 at the University of Chicago, the Italian physicist Enrico Fermi succeeded in producing the first nuclear chain reaction. This was done with an arrangement of natural uranium lumps distributed within a large stack of pure graphite, a form of carbon. In Fermi's "pile," or nuclear reactor, the graphite moderator served to slow the neutrons. Nuclea .....

.... electricity silently, without combustion. Hydrogen fuel, which is one of the most abundant chemicals in the universe, and oxygen from the air are electrochemically combined in the to produce electricity. Heat and pure water vapour are the only by-products of the . The Ballard Fuel Cell is made up of two electrodes, the anode and the cathode, separated by a polymer membrane electrolyte. Both the anode and the cathode are coated in a thin layer of platinum catalyst. At the anode, hydrogen fuel is changed into free electrons and protons. The free electrons are sent in the form of usable .....

.... and answering the moral and safety questions it brings forth, the blanket of fear covering this remarkable technical miracle can be lifted. The first step to understanding genetic engineering, and embracing its possibilities for society, is to obtain a rough knowledge base of its history and method. The basis for altering the evolutionary process is dependant on the understanding of how individuals pass on characteristics to their offspring. Genetics achieved its first foothold on the secrets of nature's evolutionary process when an Austrian monk named Gregor Mendel developed the first "la .....