.... other, this meant that the universe was expanding. Hubble found the movement of the galaxies by using a phenomenon known as the Doppler effect. This effect caused bodies moving away from an observer to have a "red-shifted" spectrum (the light spectrum of the body had been shifted closer to red) and bodies moving towards an observer to be "blue-shifted" (Hawking, 1988) The expansion was traced backwards through time to discover that all the galaxies had originated from the same point. It was later believed that all matter spawn from that "center of the universe" discovered by Hubble, by means of some sort of enigmatic portal. Mat .....

.... wipe away any foreign objects on the eye. The animal would be strapped down and the "product" would be dropped into the eyes. After irritation came pain, after pain came ulceration and bleeding, blindness would follow. Other tests would include "forcing hair dye or face powder into a dog or rat through a stomach tube until its internal organs rupture." It really makes no sense that people can still be for animal testing when one can look at a case like this and just simply wonder. Animals not only have a brain, they have feelings too. Curtis uses an example at the beginning of her essay to point out the wrong doing in animal .....

.... as conveyance of an action potential in neurones. However, despite the diversity of function, the structure of membranes is remarkably similar. All membranes are composed of lipid, protein and carbohydrate, but it is the ratio of these components that varies. For example the protein component may be as high as 80% in Erythrocytes, and as low as 18% in myelinated neurones. Alternately, the lipid component may be as high as 80% in myelinated neurones, and as low as 15% in skeletal muscle fibres. The initial model for membrane structure was proposed by Danielli and Davson in the late 1930s. They suggested that the .....

.... energy of the two gas clouds. This energy produced is so great when it first collides, that a nuclear reaction occurs and the gases within the star start to burn continuously. The Hydrogen gas is usually the first type of gas consumed in a star and then other gas elements such as Carbon, Oxygen, and Helium are consumed. This chain reaction fuels the star for millions or billions of years depending upon the amount of gases there are. The star manages to avoid collapsing at this point because of the equilibrium achieved by itself. The gravitational pull from the core of the star is equal to the gra .....

.... then measured the subjects' saliva for a substance called secretary immunoglbulin-A antibody, the less they had of it, the more likely it was that the subject would come down with the cold. This may be true according with Dr. Stone, but an argument made by Dr. Gwaltney, "You see, you could have a ton of immunoglobulin-A and you could still get sick. If you don't have a specific antibody for the cold virus that's after you, you're still a goner." Acute stress is one of the most forgotten way of how a person could catch a cold. Acute stress lasting maybe only a few minutes, can lead to colds. The important thing, said Dr. .....

.... points are then listed along when they when fisrt liquefied by a chemist. Welcome, Stranger! This talks about the rarest of stable enert gases, xenon. It also tells why that in 1962 so many expirements were done involving this gas. Fisrt it defines the word gas, and talks about different types in about four pages. Thens he talks about how it is combined with flourine to form a poison. Death in the Labratory Here Asimov talks about how scientists have died due to poor lab conditions and other matters. He also tells you a few way to poison youself in a lab such as mixing xenon and flourine. He then goes off and explains how .....

.... Disc - Random Access Memory, and is the approved format by the Official DVD Forum. DVD-RAM are dual sided and can hold up to 2.6 gigabytes per side. They use phase-change as a recording material, “wobbled land and groove” recording method, embossed pits for header information, Zoned Constant Linear Velocity (ZCLV) rotational control, and is a random-access, non-sequential medium. DVD-RAM-Compatible readers will require servos to handle switching between the lands and grooves. DVD-RAM drives will also need a decoder to handle scattered 32K ECC Blocks, something not needed for DVD-ROM and DVD+RW, since their blocks a .....

.... From 277 attempts, Dolly was the only successful attempt. The point is however that we now have a man created sheep, what else could be done in the near future. There are many different goals for . Would you like to clone someone close to you who had died? In the movie “Gattaca” you get a peak at something that could be made possible by cloning, the genetic engineering of children not yet born. It could be the end of birth defects. If given the choice to be able to make a child perfectly healthy and have the traits you want in your child, would you do it? Infertile couples would be able to have babies. Organs c .....

.... the "escape velocity". Roughly, earth’s escape velocity is about 25,000 M.P.H. (11.2 kilometers/second). Earth’s mass is nothing compared to the mass of a star that has the potential to become a black hole. A black hole has so much mass in such a small area, that its escape velocity is greater than the speed of light. So if were all living on earth, and earth was a black hole, we would need to go at the speed of light in order to get to the moon (and not to mention a lot of milk so our bones could support 800 million ton human beings). Even though a black hole’s gravitational pull is enormous, it does have its boundry. Thi .....

.... perihepatitis, sterility can be transmitted to newborns. Approximately 2% of persons with untreated may develop Disseminated Gonococcal Infection (DGI). This develops into a fever, skin lesions and arthritis type pain. is treated with antibiotic drugs taken orally or by an injection. All partners must be treated. Treatment during the early stages is usually 100 percent effective. It is important that all of the antibiotics are taken as prescribed, and that the infected people refrain from sexual intercourse during treatment. Proper hand washing is essential. The bacteria can be transferred to the eyes. Abstinence from bot .....