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» Browse Science and Environment Term Papers
Asimov On Chemistry By Isaac Asimov
Number of Words: 1067 / Number of Pages: 4
... of nitrogen. Inert gases and
there liquefaction 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 yousel ...
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Pollution And The Environment
Number of Words: 767 / Number of Pages: 3
... out of the chain, the other animals that eat that one will go hungry, therefore killing them off too. Contaminated food has already happened to the food humans eat. For example, the Mad Cow Disease. This disease slowed the beef market down and it is easily happening in the other ocean creatures market. Humans have no right to kill what is not theirs, unless it is for food purpose only. Most humans do not realize that polluting the ocean kills animals, but the truth is, it does.
Not only are animals at a risk, humans are too because of the unstable cliffs along the coastline. These cliffs are very u ...
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Drugs: Glossary And Definitions
Number of Words: 421 / Number of Pages: 2
... transparent, isotropic
mixtures of a biphasic oil-water system stabilized with surfactants. The
diameter of droplets in a microemulsion may be in the range of 100 A to 1000 A.
Microemulsion may be formed spontaneously by agitating the oil and water phases
with carefully selected surfactants. The type of emulsion produced depends upon
the properties of the oil and surfactants utilized.
Ointment:
Semisolid preparations intended for topical application. Most ointments are
applied to the skin, although they may also be administered ophtalmically,
nasally, aurally, rectally, or vaginally. With ...
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H.i.v. About Aids
Number of Words: 2048 / Number of Pages: 8
... is classified as a RNA Retrovirus.
A retrovirus uses RNA templates to produce DNA. For example, within the
core of HIV is a double molecule of ribonucleic acid, RNA. When the virus
invades a cell, this genetic material is replicated in the form of DNA .
But, in order to do so, HIV must first be able to produce a particular
enzyme that can construct a DNA molecule using an RNA template. This enzyme,
called RNA-directed DNA polymerase, is also referred to as reverse
transcriptase because it reverses the normal cellular process of
transcription. The DNA molecules produced by reverse trans ...
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MP3paper
Number of Words: 738 / Number of Pages: 3
... found at Winamp.com. I personally like this player because it has a digital equalizer, which gives you more control over the sound of the music. This player reads the songs directly off the hard drive so there is no need for a disk, CD, or tape of any kind. This player also has a feature of a playlist where songs can be added or deleted. Which gives another reason to choose MP3s over albums.
The easy access and the convenience of being able to control the music you listen to has many record companies worried about the future of the their music business. They have started a movement to maintain th ...
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Orion Nebula
Number of Words: 979 / Number of Pages: 4
... the electrons enter a higher energy level (n=3). Then, when the electron drops from the n=3 level to the n=2 level, an Hphoton is emitted. 2 This photon has a wavelength of 6563 Å, and therefore corresponds to the red portion of the visible spectrum. It is these H photons which give the nebula the distinctive red color which we see.
The extreme brightness of the O-type and B-type stars, coupled with the Earth’s atmosphere, has always made high-resolution imaging of the star-forming region difficult. But recent advances in adaptive optics and the repair of the Hubble Spac ...
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The Origin Of Humanity
Number of Words: 370 / Number of Pages: 2
... placed along a timeline. The time periods show slight differences in bone structure showing what is hypothesized to be the human evolving. Evolving from what though? The theory of evolution states that creatures change overtime to suit their surroundings. This is called environmental adaptation. The more a creature can adapt to it's environment the greater chance it has of living and show an increase in population called survival of the fittest.
A theory developed by a scientist named Charles Darwin who had conducted extensive research into the environmental adaptions of animals, for example the adap ...
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Creatine 2
Number of Words: 1792 / Number of Pages: 7
... a phosphate group to ADP, and further energy reactions can occur. Creatine Monohydrate is a precursor to creatine phosphate. By supplementing with CM, CP levels in muscle apparently are maximized, and more muscular work can occur, since there are greater energy reserves to use. Approximately 95% of the body's creatine supply is found in the skeletal muscles. The remaining 5% are scattered throughout the rest of the body, with the highest concentrations in the heart, brain and testes. A skeletal muscle itself does not produce creatine, but utilizes the creatine originating in the liver and k ...
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Longitude
Number of Words: 834 / Number of Pages: 4
... overtime.
John Harrison was a simple clockmaker and a self-educated person who was accredited for finding by means of a timekeeper. John built his first pendulum watch in 1713. It was constructed entirely out of wood. Harrison called his first sea clock Harrison’s No. 1 or H-1 for short. H-1 was bar-shaped, built out of shinny brass, and was big in size. His second attempt was called H-2. H-2 was a heavy weight of 86 pounds, but fitted into a small box as John promised it would. H-2 was also bar-shaped and included an implement to ensure a unchanging drive and a more agreeable tem ...
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Introduction To Evolution
Number of Words: 3618 / Number of Pages: 14
... adapted to their current environment and thus disappear, whereas others
prove to be adaptive, and their numbers increase. The elimination of the unfit,
or the "survival of the fittest," is known as Natural Selection because it is
nature that discards or favors a particular being. Evolution takes place only
when natural selection operates on apopulation of organisms containing diverse
inheritable forms.
HISTORY
Pierre Louis Moreau de Maupertuis (1698-1759) was the first to
propose a general theory of evolution. He said that hereditary material,
consisting of particles, was transmitted fro ...
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