Papers on Science and Environment
Genome Sequencing
Words: 1656 - Pages: 7.... 1997
Bacillus subtilis finished 1997
Archaeoglobus fulgidus finished 1997
The benefits of complete genome sequencing projects include a greater understanding of the organisms being sequenced and acknowledgment of the minimum complement of genes necessary for a free-living organism. Of the organisms that have already had their genomes sequenced, a number are of particular importance. For example, Mycoplasma genitalium has a complete nucleotide sequence that is only 580,070 base pairs long, and as such, is believed to be the smallest genome of any free-living organism. Because of it's unique size, this genome presents a way of studyin .....
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Surface Tension
Words: 617 - Pages: 3.... other. The tendency of any liquid surface is
to become as small as possible as a result of this tension, as in the case of
mercury, which forms an almost round ball when a small quantity is placed on a
horizontal surface. The near-perfect spherical shape of a soap bubble, which is
the result of the distribution of tension on the thin film of soap, is another
example of this force; surface tension alone can support a needle placed
horizontally on a water surface.
Surface tension depends mainly upon the forces attraction between the
particles within the given liquid and also upon the gas, solid, or liquid in
contact with it. The molecules i .....
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Bubonic Plague 2
Words: 575 - Pages: 3.... suffered as cruelly as anywhere. In China, for example, the population
dropped from around 125 million to 90 million over the course of the 14 century. The plague moved along the caravan routes toward the West. By 1345 it had made it’s way to the lower Volga River. By early 1347 it was in Constantinople. It hit Alexandria in the autumn of that year, and by spring 1348, a thousand people a day were dying there. In Cairo, Egypt, the count was seven times that. The disease traveled by ship as readily as by land and it was no sooner in the eastern Mediterranean than it was in the western end as well. Already in 1347, the plague had hi .....
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The MOBOT Project: Longwood
Words: 594 - Pages: 3.... of the students and, more importantly, the
teacher. As the goals of the project were made clearer, our group began
discussing possible ideas for the design. There were some disagreements about
whether we should take the electromechanical route or the purely electrical one.
And after some deep thought, we all agreed that the mechanical way would be the
simplest to build and the most merciful on our pocketbooks. Even though we were
coming up with some good ideas, each design seemed to contain some major
problems. One of the reoccurring problems dealt with the synchronization of the
driver motor and the steering system. Finally the team ca .....
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Science Experiment On Odor Changes Of Various Chemicals
Words: 1820 - Pages: 7.... up with the correct answer and see if my hypothesis was correct. I first had to research all of my chemicals and note their specific contributions to the experiment. The chemicals included vinegar, ethyl alcohol, sulfuric acid, salicylic acid, and methyl alcohol.
RESEARCH OF THE PROBLEM
To start my project, I researched vinegar. Vinegar is a sour liquid with a pungent odor, containing acetic acid, and is made by fermenting dilute alcoholic liquids such as cider, wine, or other fruit juice. Vinegar is used as a condiment, preservative, and in certain medicines (2: 1214).
Ethyl Alcohol is also used in medicines. The formula for this .....
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The Noble Gases
Words: 447 - Pages: 2.... in balloons and divers use it with oxygen to breath easier and to not get sick or dizzy.
Neon is an element that is lighter than air. The element is found most common in the atmosphere of the earth. It is also found in the earth’s crust. Sir Walter Ramsey and Morris W. Travers discovered it in 1898. Its uses include electric signs, lamps, and lasers.
Argon is the most abundant and most used noble on earth. Sir Walter Ramsey discovered it by Lord Rayleigh and in 1894. Argon makes up about 1.2 % of the earths atmosphere. It is found naturally in rock and in the air. It is used for electric light bulbs and fluorescent tubes. It is .....
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Properties Of Water
Words: 1189 - Pages: 5.... point of 0 degrees C. The amount of energy needed to raise the
temperature of one gram of water by one Celsius degree is called a Calorie. One
Calorie is about twice as much energy as you need to warm one gram of most other
fluids by the same amount. This makes water much better for regulating the
temperatures of animals and the environment.
Water also has a very high heat of vaporization. Converting one gram of
cold water into ice requires 80 Calories of energy. Converting the same amount
of very hot water into steam requires 540. The high amounts of energy required
to change water from its liquid state make water tend to stay .....
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Hawks
Words: 1311 - Pages: 5.... Owls are nocturnal for the
most part and the others hunt during the day. Hawks evolved from
raptors which also were birds of prey. Hawks evolved with eagles
and falcons mainly but also with some other birds as well.
Habitat and Biome
Hawks live in all different habitats. Some in the foothills of the
mountains while others live in the brushy open country and badlands
of Oklahoma, Arizona, New Mexico, Nevada, and South-central
California. Also in North and Central America for a more wide
variety of hawks. Its biome would be in the Deciduous area as well as
the Grassland and parts of the desert.
Tropic Level/Niche
The hawk is at the t .....
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Genetic Disorders
Words: 804 - Pages: 3.... 1 in
10,000 and usually doesn’t affect the person until they are 30 or 40 years old. A person with this disease develops uncontrolled movements and may have
problems with coordination, thinking, and judgment. A weakening of the
nerve cells in the brain causes these symptoms and later results in death.
Another single-gene disorder is the Tay Sachs Disease. People who
inherit the faulty Tay Sachs gene lack a crucial enzyme that is needed to break
down fatty substances in brain and nerve cells. As a result, these substances
build up in such large quantities that the central nervous system
gradually stops functioning and th .....
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Is Medical Testing On Animals Ethical
Words: 439 - Pages: 2.... can be prevented by a responsible lifestyle and diet. Drug testing on animals is not accurate and has no advantage to animals or people.
Animals including dogs, cats, mice, pigs, monkeys, horses, deer, and cattle are commonly used for these senseless experimentations. The other
remaining misfortunate animals come from places a little closer to you and me. Some of them come from animal shelters, some from the “free to a good home” ads in the newspaper, or, even worse, some have been stolen directly from their own yard. Imagine your pet being crammed into a cage with ten other animals waiting to die in these cruel and heart .....
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