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» Browse Science and Environment Term Papers
Geothermal Energy
Number of Words: 4686 / Number of Pages: 18
... around a dense core in the middle. As time went on the accumulation elements with similar physical properties into hot bodies caused a slow formation of a crystalline barrier around the denser core. Hot bodies consisting of iron were attracted to the core with greater force because they were more dense. These hot bodies sunk into and became part of the constantly growing core. Less dense elements were pushed towards the surface and began to form the crust. The early crust or crystalline barrier consisted of ultra basic, basic, calc-alkaline, and granite. The early crust was very thin because the core w ...
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Bats
Number of Words: 1283 / Number of Pages: 5
... the forearm is very long. The wrist is very
small and from it comes the thumb and the four longer fingers. The thumb is
short and used for climbing or walking. The fingers are long and thin.
Interlocking the fingers is the wing. This set up of having the fingers in the
wing gives the bat amazing flight maneuverability (Honders 22). These bones
look similar to a human hand. They are connected by rubbery skin to the bat's
body enveloping all the fingers but the thumb (Bats in CT 1).
Echolocation
Bats have a "sixth sense" called echolocation. This was first proved by
Donald Griffin. Bats ...
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Lasers And Their Applications
Number of Words: 1998 / Number of Pages: 8
... of the original waves. Stimulated emission is the process that the laser works on, which was first proposed by Albert Einstein in 1917. When a sufficient number of atoms, either gas solid or liquid, absorb energy so that they are in an excited state of higher energy stimulated emission can occur. Light of a specific wavelength can produce more light with the same phase and direction these light waves will be coherent. Stimulated emission amplifies the coherency of this radiation and gives the radiation a very narrow beam spread.
The combination of light amplification and stimulated emission ...
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Dingo
Number of Words: 554 / Number of Pages: 3
... in a long chase because they arenŐt very fast runners. Large animals are chased until the es can catch them or until the weaker ones drop back. es donŐt always get their prey, however kangaroos can lean back on their tails and kick hard enough to rip open a Ős stomach.
The gestation period of the is about 63 days, and the litters average about 5 to 8 pups. After 2 weeks, the mother will throw up food for the pups to eat. After 3 weeks, both parents will bring food to the den. Prey around the den is left for the pups to practice hunting.
The usual color of dingoes is yellow-ginger. However o ...
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Intro To Computer Virus
Number of Words: 1553 / Number of Pages: 6
... three types of harmful computer programs, not all of which hide and replicate.
The first of these is the Trojan Horse programs, the name of which comes from the Greek legend that told how Greek soldiers gained entry to the city of Troy in a giant, hollow wooden horse and thus captured the city, ending the Trojan War. Though not technically a virus it is still dangerous and could cause permanent damage to your operating system. A Trojan Horse program is a program disguised as a game, a utility or an application. When run, a Trojan Horse will do something devious to your computer while appearing t ...
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The Atom
Number of Words: 1577 / Number of Pages: 6
... when electrons were stripped away from an atom was much more massive
remainder that was positively charged, Thomson went on in the next decade to
develop a model of the atom that came to be called the "plum pudding" model.
The Thomson atom, "a number of negatively electrified corpuscles enclosed in a
sphere of uniform positive electrification" like raisins in a pudding, was a
hybrid: particulate electrons and diffuse remainder. It served the useful
purpose of demonstrating mathematically that electrons could be arranged in a
stable configurations within an atom and that the mathematically stable ...
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Cirrhosis Of The Liver
Number of Words: 1785 / Number of Pages: 7
... Chronic diseases are also degenerative. Such diseases gradually lead to the breakdown of tissues and organs of the body. is a Chronic Degenerative Disease.
is the irreversible change in the normal liver tissue that results in the degeneration of functioning liver cells and their replacement with fibrous connective tissue. Cirrhosis can have a number of causes; the term is applied whenever the end result is scarring of the liver.
The most common type of cirrhosis is known as Laënnec's cirrhosis. Its primary causes are excessive and chronic alcohol consumption and malnutrition. The relationship b ...
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The Beaver
Number of Words: 883 / Number of Pages: 4
... more rapidly behind so as to leave a sharp, enameled chisel edge. With these can cut down large trees. It usually selects trees 5 to 20 cm (2 to 8 in) in diameter, but it can fell trees with diameters as large as 76 cm (30 in). Beavers have a pair of anal scent glands, called castors, that secrete a musklike substance called castoreum, probably for marking territories. The animals tend to be monogamous and may live 20 years or more. The female has one litter a year, usually of two to four young.
Beavers are social animals. In areas where food is abundant and the locality secluded, the number of famil ...
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Global Warming ------
Number of Words: 847 / Number of Pages: 4
... dioxide currently accounts for 0.03% of the gas content within the atmosphere. However, it has a adverse impact on the earth's temperature. Thus, minor fluctuations in the percentage of atmospheric carbon dioxide will likely have a significant effect on the global temperature. The percentage of atmospheric carbon dioxide has risen over the past century at an alarming rate. Industrial civilization is essentially driven by fossil fuels such as coal, oil, and gasoline all of these are a major factor in carbon dioxide emissions. Even if we change our practices in time to avoid these cli ...
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Human Rights
Number of Words: 558 / Number of Pages: 3
... and the right to a fair trial by a competent and independent court
ˇ freedom to enjoy lawfully acquired property
ˇ equality of opportunity (including freedom from discrimination)
ˇ freedom of assembly and association (including public meeting and withdrawal of labour)
ˇ freedom of thought, conscience and religion freedom to contract
ˇ freedom to engage in a trade, profession or occupation
freedom of movement within a nation and across national borders
Ethnic rights
Nations with multi-linguistic, multi-cultural, multi-racial and multi-religious populations may also attempt to safeguard m ...
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