Papers on Science and Environment
Frank J. Horgan Filtration Plant
Words: 1105 - Pages: 5.... of works for Metro
Toronto. This plant cost about 57 million dollars to construct. About nineteen
major contractors worked on this plant and were supervised by the Engineering
firm of James F. Macharen Limited. Although it is the newest plant, it had it’s
disasters. Their intake value exploded twice between 1980 and 1995 because of
the extreme pressure and Wight of the water. these incidents cause a shutdown of
the plant until they could repair it.
Production
The Frank J. Horgan Filtration Plant needs only one row materials to
operate, which is water. The plant is right next to lake Ontario, collecting
water to purify. Th .....
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Black Holes 3
Words: 1072 - Pages: 4.... under its own gravitational force. This happens because, as a star burns fuel, it creates an outward push, which counteracts the inward pull of gravity. Once the fuel is gone, the internal pressure of the star drops and it can no longer support its own weight. In a monstrous explosion, the outer layers are thrown off. And, at this same moment, the core collapses. This can happen rather quickly because gravity can crush an object 10,000 miles across to an object only 10 miles across in about one second.
During the time that a black hole is created, the star shrinks down to an infinitely small and infinitely dense point know as the .....
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Chromosome Probes At The Unive
Words: 2253 - Pages: 9.... negotiating with an American company to develop prenatal diagnostic tests, which, because the current tests are time consuming and technically difficult to do, are restricted to women over 35 and those who have a family history of chromosomal abnormalities. Prenatal tests using Willard's probes would be much simpler and faster to perform and could be available to all pregnant women who wish to take advantage of the technology. Current prenatal testing involves growing fetal cells in vitro and examining them, over one or two months, to see if there are two copies of a particular chromosome, which is normal, or one or three, which is .....
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The Age Of The Earth
Words: 582 - Pages: 3.... because of its short half life. Uranium, which is known to have a much longer half life would be a good alternative. If a pound of the metal Uranium is left to decay, it would take approximately 4.5 billion years for it to turn into half a pound of Lead ( Howter, 1996, Radiometric Dating: An Exercise in Faith). As it turns out, this is what scientists believe to be.
The assumption that the earth is 4.5 billion years old has raised doubts in the minds of some skeptics who question the accuracy of the data used in radiometric dating! They claim that without knowing the exact amount of Uranium in the beginning, most of the calculations .....
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Acne
Words: 688 - Pages: 3.... should do to keep the case mild. First you should treat the early. The longer a person waits the worse the problem can get. Scarring may appear if one waits too long to take car of their situation. Once a pimple in noticed, don't squeeze or scratch at it. This will help illuminate the spread of more pimples and scarring. Your hands carry many bacteria that will help to spread infection. This is not a good thing to do (Facts 2).
When using cosmetics it is best to stay away from nonwater-based products and products that are rich in oils. These cosmetics will block the pores
and trap the oils deep inside the skin, causing pimples. .....
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The Noble Gases
Words: 454 - Pages: 2.... 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 earth¹
s crust. It was discovered in 1898 by Sir Walter Ramsey and Morris W. Travers.
Its uses include electric signs,lamps,and lasers.
Argon is the most abundant and most used noble on earth. It was
discovered by Lord Rayleigh and by Sir Walter Ramsey 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 floursent tubes. It is .....
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Discoveries Of Scientists Of The "Age Of Reason"
Words: 516 - Pages: 2.... to great controversial
book "On the Revolutions of Heavenly Spheres" in which the church was
greatly angered. While Copernicus's book was not a revolutionary book, it
was, however, a catalyst to make other minds ponder the new Heliocentric
theory.
After Copernicus's death there were three other scientists which
helped credit the Heliocentric theory. Tycho Brahe was the first, he
played with the idea that the planets all revolved around the sun, but the
sun instead revolved around the Earth(still Geocentric). After Brahe's
death Johannes Kepler took the notes and data that Brahe had taken. Kepler
came up with the idea the it would .....
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The Roswell Incident
Words: 1146 - Pages: 5.... directly involved, including the late General Thomas
DuBose, who took the telephone call from Washington, D.C. ordering the cover-up.
Numerous other credible military and civilian witnesses have testified that the
original press release was correct and that the Roswell wreckage was of
extraterrestrial origin. One such individual was Major Jesse Marcel, the
Intelligence Officer of the 509th Bomb Group and one of the first military
officers at the scene.
On January 12, 1994, United States Congressman Steven Schiff of Albuquerque, New
Mexico, announced to the press that he had been stonewalled by the Defense
Department when requestin .....
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Kangaroos -
Words: 1652 - Pages: 7.... climates. This allows the kangaroo to be able to have more traction in the higher elevations.
The kangaroos that live in the coastal regions also have several special adaptations. They have wider feet to allow them to walk is shallow water. They can eat several different types of sea plants. They can do this because they have a higher tolerance to salt than normal kangaroos.
Kangaroos that live in forests have adapted to this climate as well. Their feet are wide to allow them to climb trees. This allows them to eat leaves off of the trees. They also do not have claws as long as other species. There is usually a larger supply of .....
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Through A Narrow Chink: An Ethical Dilemma
Words: 1217 - Pages: 5.... the possibilities of where this would lead.
I believe Djerassi, similar to most scientists of his day, was so
entranced by the excitement of synthesizing his product and achieving his goal
that he did not stop to think of the ramifications of his accomplishment. The
ethical dilemma was not explored before hand, and this to me is the great
tragedy of most scientific discovery, since I firmly believe each scientist is
responsible for that which he creates.
Djerassi does confront a few questions of ethics and morality after the
fact.
On page 61, in chapter 6, he reflects on the argument of the use of poor
Mexican and Puertorrican wome .....
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