... it as a sort of drug. This became evident when, among other people, Timothy Leary became interested in VR. This has also worried some of the researchers who are trying to create very real applications for medical, space, physical, chemical, and entertainment uses among other things. In order to create this alternate reality, however, you need to find ways to create the illusion of reality with a piece of machinery known as the computer. This is done with several computer-user interfaces used to simulate the senses. Among these, are stereoscopic glasses to make the simulated world look real, a 3D auditory display to give depth to sound, sensor lined g ...

... kilometers up in the stratosphere called the ozone layer. This layer protects the inhabitants of earth by reflecting much of the suns harmful ultra violet (UV) rays. Without this layer above us, many living things including humans could not survive. The ozone layer is currently depleting and the reason for this is believed to be caused by a few things. Deforestation, fertilizer use and fuel combustion are minor contributors to this problem while chemicals such as chloroflourocarbons (CFCs), halons, carbon tetrachloride, methyl chloroform, methyl bromide and hydrochloroflourocarbons (HCFCs) are the major contributors to the deterioration of the ozone layer. ...

... masses (200g and 249g), ruler, protractor, spring scale and triple beam balance were used. Each group has its own assigned mass and forces as well as a force table. Weight hangers were attached to two strings tied to the center ring of the force table, where two slotted masses, one 200g and the other 249g were hung according to their specified directions. The center ring was anchored to the nail positioned at the platform’s center while the upper ring of the spring scale was attached to the free end of the third ring. After attaching the spring balance, its hook was pulled and the reading on the scale and the direction of the pull at which the two forces (hangi ...

... cubes and shavings will absorb the heat in the box and store the excess heat allowing the flow to continuously warm the oven. The tin foil will reflect heat and subsequently heat up the oven. The polyurethane material will trap the heat inside the oven. The mirrors will help the heat stay inside the box. Materials used: Shoe Box Tin Foil Sheets of Glass Charcoal Cubes and Shavings Scissors Glue Knives Polyurethane Non-Glossy, Black Spay Paint Four (4) Wood Pegs Mirrors Sealer ...

... major architects. In effect, the corals build limestone, because their skeletons are made of Calcium Carbonate. The skeletons deposited by these corals and other organisms accumulate, along with sand and other debris, to form the backbone of the reef. Over tens of thousands of years, chemical and mechanical changes turn the reef into true rock. The body of a coral animal consists of a polyp, which is the living portion of the coral. A polyp is a hollow, cylindrical structure attached at one end to a surface, the other end is a mouth surrounded by tentacles which gather food and can sting prey to paralyse it. Polyps live in colonies, which grow from 1 to 7 inches ...

... Of course, if you believe using animals for scientific research is morally wrong that's your belief, I am stating that genetically enhancing them to be better research specimens is not unethical. My reason behind this is that we don't just do research in order to infect and kill off the mice, we do it so one day we will have a cure for cancer and can save hundreds of thousands of human lives. Of course if you value the life of a mouse over a human then you would see differently. Some fear that this science is too powerful, granted we shouldn't let just anyone be able to modify bacteria, or the human genome, but we shouldn't let our fears blind us to the possible ...

... results from partial deletion of the factor VIII gene, and is severe. Other cases result from a single base mutation in the gene. This can result in nonsense mutations which result in premature stop codons, and a severe expression of the disorder, or missense mutations which cause milder forms of the disorder. In some cases the disorder can also result from spontaneous mutations, but this is less common. The gene for hemophilia-A is located at Xq28 while the gene for hemophilia-B is located at Xq27.1-q27.2. There are about thirty other disorders associated with the Xq28 area including manic depression and favism. This must indicate that Xq28 includes many dif ...

... Some of the radiation spread across northern Europe and into Great Britain. Soviet statements indicated that 31 people died because of the accident, but the number of radiation-caused deaths is still unknown. The same deadly radiation that was present in this explosion is also present in spent fuels. This presents special problems in the handling, storage, and disposal of the depleted uranium. When nuclear fuel is first loaded into a reactor, 238U and 235U are present. When in the reactor, the 235U is gradually depleted and gives rise to fission products, generally, cesium (137Cs) and strontium (90Sr). These waste materials are very unstable and have to un ...

... starts with sudden fevers, weakness, muscle pain, extreme headaches, and soar throats. These symptoms begin four-sixteen days after infection. After about 2 days of these symptoms you start to "crash". A crash is when you vomit uncontrollably until there is nothing left to vomit (you vomit blood, bile and other liquids of the body), you suffer from diarrhea, limited kidney function, internal and external bleeding, you bleed from every opening on your body, blood fails to clot, so if you get cut in any way your body will never stop bleeding from that wound. Ebola could spread and infect everyone in the world in 48 hours. Marburg, Germany In this small German town ...

... butane or Freon. The gas is partly liquefied by the pressure in the can, but there is a layer of free gas above the liquid. As the can empties liquefied gas vaporizes to fill the space. The valve is normal held shut by the pressure in the can, and by the coil spring directly below the valve stem. When the push button is pressed, it forces the valve stem down in its housing, uncovering a small a small hole which leads up through the stem to the nozzle in the button. This allows the product to be forced up the dip tube by the gas pressure in the can. The nozzle is shaped to give a spray or a continuous stream. To produce a fine mist, a propellant is used which mixes ...