... Just north of his position flying at an altitude of 9,500 feet and an unprecedented airspeed of 1,700 mph he spotted nine circular aircraft flying in formation and according to his estimate the aircraft were approximately the size of a dc-4 airliner ( jackson 4). This account was the first sighting to ever receive a great deal of media attention. This sighting gave birth to the phrase "flying saucer" coined by a reporter named bill begrette. Although not the first ufo sighting in history, kenneth arnolds account is considered to be the first documented ufo sighting. The following day mr. Arnold discovered that in addition to his sighting there were several ...
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... that sent the professor back in time goes to the site in Scotland and explains what’s going on to all the other of archeologists and asks for a few volunteers to go back and bring the professor back to the present. When the volunteer’s go back they’re reappearing in front of some knight’s scares them so there two guides are killed and they are left alone in the 14th century trying to find the professor. While they are in the 14th century they prove true some of their hypothesis of what they thought that the area looked like. They go though all sorts of trouble but eventually bring the professor back and all is well. The whole story is ...
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... cultivated plants (potato, peppers, eggplant, tobacco, petunias, tomatillo) and various weeds (nightshades, jimson weed). It may have been this association with the nightshades which originally led people to believe the tomato to be poisionous. It was therefore fortunate that Miller changed the species name to esculentum which roughly means "edible". The common cultivated tomato belongs to the genus Lycopersicon. This genus exhibits a vast reservoir of genetic variability which remains largely underexploited. Some disease resistance, which is now a part of most commercially available cultivars, has been derived from related species of Lycopersicon. However, ...
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... were responsible for the women’s dementia. is a disorder marked by a gradual decline in brain function that gets worse with time. It used to be assumed that this change was a normal part of aging that we called senility. Some people develop this condition when they are as young as 40 years of age. However, the disease is most common in persons over the age of 65. It is estimated that approximately 10 percent of persons over 65 years of age may have and that in persons over the age of 85, up to 50 percent may be affected. is not a normal part of the aging process. It is not contagious, and it is not known how it can be prevented. While the physical ch ...
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... 1991). After extensive research, the pathology of BSE was finally determined. Microscopic lesions in the central nervous system that consist of a bilaterally symmetrical, non-inflammatory vacuolation of neuronal perikarya and grey-matter neuropil was the scientists' overall conclusion (Stadthalle, 1993). These lesions are consistent with the diseases of the more common scrapie family. Without further investigation, the conclusion was made that BSE was a new member of the scrapie family (Westgarth, 1994). Transmission of BSE is rather common throughout the cattle industry. After the incubation period of one to two years, experimental transmission was found p ...
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... level. As aging membranes leak during this lipid degeneration, a fatty, brown pigment known as lipofuscin accumulates. As this happens, the mitochondria, or the “powerhouse of the cell” begins to break down, thereby decreasing the amount of energy that is being supplied to the cell. This cellular degeneration may be set into action by highly reactive chemicals known as free radicals. These molecules have an unpaired electron in the outermost valence shell. This causes the molecule to grab electrons from other molecules, setting into motion a chain reaction that destabilizes them, and causes death of the cell. These free radicals are the normal by-product of m ...
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... earth. Greenhouse gases include water vapour, carbon dioxide (CO2), methane (CH4), chloroflurocarbons (CFCs), Ozone (O3), and Nitrous Oxide (N2O). It all seems very straightforward: greenhouse gases trap the sun's heat, warming the planet sufficiently for life to exist. There is, however, one problem: human activity has dramatically increased the amount of greenhouse gases in the atmosphere. Over the last two centuries the concentration of greenhouse gases in the atmosphere has increased quite significantly, mainly as a result of burning fossil fuels for industrial purposes. For example, atmospheric concentrations of carbon dioxide have increased from 280-285 part ...
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... piracy later in this report. CDs have become a cost effective industry standard when it comes to storing data. Some terms that you will encounter throughout this report are: CD-ROM – Compact Disk Read Only Memory, (non recordable CD) – Recordable Compact Disk Floppy disk – a square 3 ½ inch disk, with a capacity of 1.4mb Cartridge – A high capacity form of storage, slightly larger than a floppy disk Byte - The way that data is measured MB – megabyte, (1,000 bytes) Gig – gigabyte, (1,000mb) Piracy – The illegal reproduction of copyrighted material. Factors influencing the development ...
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... forming a long tail of dust and gas. Comets are cold bodies. We see them only because the gases they are composed of glow in the sunlight. All comets are regular family members of the solar system family. They are bound by gravity to a strict path around the solar system. Scientists believe that all comets were formed of material, originally in the outer part of the solar system, which did not become incorporated into planets. This material is from when the planets just started forming. This makes comets an extremely interesting topic to scientists who are studying the history of the solar system. In comparison to planets, comets are very small. They can ...
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... have also been observed from fatalities. Loss of consciousness, amnesia, paralysis and burns are reported by many who have survived. Deaths and injuries to livestock and other animals, thousands of forest and brush fires, as well as millions of dollars in damage to buildings, communications systems, power lines, and electrical systems are also the result of . Finally, the threat of causes many work stoppages and lost production increasing the time and cost required to prepare NASA spacecraft for flight. Benjamin Franklin performed the first systematic, scientific study of during the second half of the 18th century. Prior to that time, electrical science had dev ...
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