.... world. Galileo seems to test his beliefs through experimentation and mathematical reasoning. He sites examples in life that support his hypothesis. His argument is of a scientific nature because he is making a hypothesis on a distinctive type of concept. The conclusions that Galileo made relate directly to the work in physics for which he is so well known. His conclusions put emphasis on shapes, numbers, and motion which are all properties that lend themselves to support through "reasoning back and forth between theory and experiment." I feel that Galileo's argument is a valid one because it explains relations in nature and the physical world through mathematical ....

.... our world, is somewhat hard to define in real terms. It shares properties with both particles and waves. It follows the same rules as a wave does--it moves in a regular fashion, in a perfect sine wave at a certain frequency. It travels in a straight line, and is subject to refraction. All of these characteristics are found in waves of any type, from radio frequency waves, up to Gamma and X- rays. Light, however, also exhibits qualities characteristic of particles such as neutrons and protons. A photon, or quanta, is the "packet" of energy that is sent in a light wave. Like a particle, the photon is believed to have a finite mass, and has the ability to affect other matter. ....

.... - either in functionality or in terms of cost - and their strengths are almost inevitably outstripped by users' demands. During the past three years, data warehousing has emerged as one of the hottest trends in information technology for corporations seeking to utilise the massive amounts of data they are accumulating. Managers from all business disciplines want enterprise wide information access, as well as the ability to manipulate and analyse information that the company has gathered for a single purpose, to make more intelligent business decisions. Whether to increase customer value, identify new markets or improve the management of the firm's assets, the data ....

.... it might be extinct tomorrow or extinct in the future. Or it might not happen like that. If you leave it alone and do not harm it, it might have baby’s and have more of its kind. A species is named endangered when of its kind occurs in a low number. About 1000 species in the world are named endangered, or are in threat to be extinct. I never knew that some kinds of birds were in danger. We can help these animals and plants by making laws that you are not allowed to hunt or kill any animal that is in danger of extinction. Government Involvement Only since the 19th century has there been worldwide concern about the case of species in their natural environments. Fin ....

.... and nickel oxyhydroxide (NiOOH). At both electrode, oxidation-reduction reactions take place in an alkaline medium consisting of 30% by weight KOH in water. When charging, Ni(OH)2 at the positive electrode becomes oxidized and the metal hydride becomes reduced. In fact, the hydrogen which was separated from water come to react with the metal in the negative electrode to form MH. On the other hand, the hydroxyl ion ( from water) reacts with Ni(OH)2 at the positive electrode to form NiOOH. Ni now change from +2 to +3. Ni(OH)2 +OH = NiOOH + H2O + e From equation (1) and (2) there is no net change in electrolyte quantity or concentration over the charge and discharge c ....

.... power source for space program, but the cost and size of the stacks were tremendous. By 1983, Geoff Ballard and a small team of physicists were able to develop the Proton Exchange Membrane (PEM) to produce nearly ten times as much energy, while being only a fraction of the size. How the PEM Works: A is an electrochemical device that produces 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 ....

.... to an area of high concentration, this process is the opposite of osmosis or diffusion. Active transport requires energy because it is moving against the concentration gradient. In active transport the cell uses ATP to remove unwanted materials and to receive needed ones. For example a muscle cell wants potassium and wants to get rid of a sodium, the cell releases ATP to the pump proteins which results in the cell ejecting the sodium ion and at the same time another receptor cell accepts a potassium which is then released into the cell and the process is repeated until the cell is finished. c.Facilitated Transport In facilitated transport a molecule that cannot no ....

.... Imagine, simply insert the CD into the CD-driver in your car, and tell the computer where to go. Therest will be done automatically. This will be a safer, faster, and morecomfortable way to travel. Another new area, called "virtual reality" is currently being tested. This is away to simulate reality on a monitor. In order to feel this so-called realityyou have to wear special electronic glasses and an electronic suit. Fastened tothe suit are sensors, which send information to the main computer. Thiscomputer works with the data and displays them on the electronic spectacles. This is a technique which use three-dimentional views, therefore the scenery seems incredibly realis ....