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Soil Erosion Human Actions
1,131 words
Soil erosion is a gradual process that occurs when
the actions of water, wind, and other factors eat
away and wear down the land, causing the soil to
deteriorate or disappear completely. Soil
deterioration and low quality of water due to
erosion and run off has often become a severe
problem around the world. Many times the problems
become so severe that the land can no longer be
cultivated and is abandoned. The key to minimizing
soil erosion and saving the farm lands is the
farmer himself. Ultim...
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Soil Erosion Soil Particles
1,127 words
... d and water management, including sediment
transport and storage in lowlands, reservoirs,
estuaries, and irrigation and hydropower systems.
In the USA, soil has recently been eroded at about
17 times the rate at which it forms: about 90 % of
US cropland is currently losing soil above the
sustainable rate. Soil erosion rates in Asia,
Africa and South America are estimated to be about
twice as high as in the USA. FAO estimates that
140 million ha of high quality soil, mostly in
Africa and Asia...
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Hubble Space Telescope Universe Continues To Expand Energy
786 words
The universe begins with a cataclysm that
generates space and time, as well as all the
matter and energy the universe will ever hold. For
an incomprehensibly small fraction of a second,
the universe is an infinitely dense, hot fireball.
The prevailing theory describes a peculiar form of
energy that can suddenly push out the fabric of
space. On a rare occasion, a runaway process
called "Inflation" can cause a vast expansion of
space filled with this energy. The inflationary
expansion is stopped o...
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Food Chain Laser Light
895 words
LIGHT: A FUNDAMENTAL FORCE IN OUR WORLD If asked
what light is, one could say that it's one of the
most basic elements of our world and our universe
as we perceive it. It is through sight that we
receive 90 % of our information. It is through the
use of telescopes aiding the naked eye that we are
aware of the heavenly bodies around us. It is
through light that the energy from the sun is
transferred to us. The sun's energy supports the
food chain; plants use it to turn water and CO 2
into energy ...
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Law Of Motion Universal Gravitation
729 words
Mediaeval understanding of science had mostly
based Aristotle; Aristotle's ideas held for
thousands of years until the scientific revolution
begin breaking them off. It is Newton helped the
transformation of natural philosophy into modern
science. Newton established the science of
mechanics and laid the groundwork for classical
physics with law of motion he discovered. These
principles might seem obvious and simple to todays
physicists, but this was a new way of thinking in
Newtons time. Instead...
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Positive And Negative Conduct Electricity
595 words
Electrolytes are liquids that conduct electricity.
Most need to be dissolved into water or another
solvent. Battery's have an electrolyte in them,
either as a liquid or as a paste. Liquid
electrolytes are used in electrolysis,
electroplating, and other chemical processes. When
electrolytes dissolve they release positive and
negative ions. The released ions carry electric
charges between electrodes, in the solution.
Cations (a positively charged ion that migrates to
the cathode, a negative electr...
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Contingent Beings Infinite Series
1,038 words
... needed to ascertain the first causes
qualities. The causal argument is only meant to be
an important step in proving Gods existence. The
main disagreement about the causal argument
centers on the infinite series paradox. Aquinas
states that to imply an infinite series is not
only illogical, it also implies that nothing
exists. Yet we know that things do exist, hence
the infinite series is wrong. Let me explain a
little better, Aquinas reasoned that whenever we
take away the cause the effect ...
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Stephen Hawking A Life In Science
1,791 words
depicts the life and accomplishments of Stephen
Hawking, a unique and towering figure in modern
physics, perhaps the most famous scientist since
Einstein. He has achieved far more than the vast
majority of able-bodied people would ever have
dreamt of accomplishing. He has made fundamental
breakthroughs in cosmology and, perhaps more than
anyone else alive, he has pushed forward our
understanding of the universe we live in. His
brilliant work on black holes, the big bang, and
quantum cosmology ha...
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Pleasure And Pain Primary And Secondary
2,151 words
... f the operations of bodies on us (sensation)
or the observation of the workings of our own
minds (reflection). In a famous passage (II, XI,
17), Locke compares the mind to a "dark room" (in
the Latin, "camera obscura") with only a narrow
inlet. Ideas are analogous to the images projected
onto the back of the room. Locke classified the
various simple ideas according to the following
scheme. Those that come to the mind by one sense
only, such as color or odor. Those that come in to
the mind by...
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Acid Rain Sulfur Dioxide
566 words
"Acid rain" is a broad term used to describe
several ways that acids fall out of the
atmosphere. A more precise term is acid
deposition, which has two parts: wet and dry. Wet
deposition refers to acidic rain, fog, and snow.
As this acidic water flows over and through the
ground, it affects a variety of plants and
animals. The strength of the effects depend on
many factors, including how acidic the water is,
the chemistry and buffering capacity of the soils
involved, and the types of fish, trees,...
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Recovering Lost Atoms Of Cosmos
1,430 words
Recovering Lost Atoms Of Cosmos I would like to
talk about the history of our Universe and
subjects, which concerns this topic. First of all
I would like to summarize the article about
recovering lost atoms of cosmos. I chose this
article because it introduces the topic in
interesting and exciting way. It also clarifies
many points and gives a good brainstorm. The
specific chemistry, which is used here, is another
peace of work. I will stop on chemistry later for
better specification. It was a c...
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Nuclear Fusion White Dwarf
1,159 words
The night sky, unimaginably deep, is a
breathtaking sight. Some three thousand stars can
be seen with the naked eye, twinkling points of
light that have inspired the human spirit since
the dawn of time. Study of the stars, based on
data collected from visible-light telescopes,
radio telescopes, and detectors wavelengths can
now reveal extraordinary amounts of information:
size, temperature, chemical composition, internal
structure, distance and rotation rate, among other
factors. One of the most...
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Life On Earth Outer Planets
1,123 words
As Extraterrestrial Life Extraterrestrial life As
biologists learn about life on Earth in all its
diversity, and at the rate that new planets are
being discovered the search for life elsewhere
grows more steadily pressing. We have discovered
organisms on the Earth that seem tenacious and
tough almost to a fault; they thrive in the most
seemingly adverse conditions imaginable, and
organisms so fragile and specialized so as to
exist in only the most isolated and pristine
environments. With the kno...
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U S Military Global Positioning System
1,395 words
In the 1800 s, most things were done using
manpower, not machines. To plow a field it used to
require a team of horses and a plow. To make
butter it required a hand churn. Life was simple
and people depended on themselves. In the 1920 s
the automobile was a very important technological
machine. Instead of a team of horses and a
carriage, one could move about more efficiently in
an automobile. Through the following years many
advances in technology occurred: electric
machines, televisions, radios...
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Alpha Particles Natural Gas
520 words
How Helium Balloons Work There is something
incredibly special about helium balloons! If you
buy one at the circus or fair, you can hold its
string and it will ride along above you. If you
let go of the string it will fly away until you
cannot see it anymore. If you have ever wondered
why it flies away, the passages below can help you
to figure out the mystery. Helium floatation
Helium balloons work using exactly the same law of
buoyancy. In this case, the helium balloon that
you hold by a strin...
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Royal Society White Light
1,996 words
Newton, Sir Isaac (1642 - 1727), mathematician and
physicist, one of the foremost scientific
intellects of all time. Born at Woolsthorpe, near
Grantham in Lincolnshire, where he went to school,
he began to attend Cambridge University in 1661;
he was elected a Fellow of Trinity College in
1667, and a Lucasian mathematics professor in
1669. He stayed at the university, lecturing most
of the years, until 1696. During these Cambridge
years, in which Newton was at the top of his
creative power, he si...
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Flu Virus Percent Effective
812 words
For 3 decades, scientists have been experimenting
with medications that stifle the influenza virus.
Two drugs, amantadine and rimantadine, can impede
the disease and limit symptoms. However, neither
works against one of the two major strains of
influenza, and both can be eluded by the evolving
virus. In addition, amantadine causes some
disagreeable side effects, including confusion and
nightmares. A new antiviral zanamivir seems to
ease or eliminate many symptoms of either flu
strain if taken wi...
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Electromagnetic Radiation Einsteins Theory
365 words
Photoelectric Photoelectric Effect Photoelectric
Effect Photoelectric Effect is the formation and
liberation of electrically charged particles in
matter, usually metals, when it is irradiated by
light or other electromagnetic radiation. The term
photoelectric effect designates several types of
interactions. In the external photoelectric
effect, electrons are liberated from the surface
of a metallic conductor by absorbing energy from
light shining on the metals surface. This is the
form that we g...
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Environmental Protection Agency Amounts Of Carbon
1,620 words
What have we done to our planet Earth? At present,
the most extreme and realistic finality we will
ever realize as a race of beings is that our
planet doesnt need us; we need the planet. Within
the last two hundred and fifty years we have
caused the planet more harm than its 4 billion
years of existence. It is and has been time to
realize the seriousness of our abuse towards
Earth. We cant just turn pollution off like a
switch when we dont want to deal with it, we have
to do something about. And...
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Billion Years Ago Development Of Nuclear
973 words
Table of contents Page 1: The development of
nuclear energy. Page 2: What is nuclear winter.
Page 3 038; 4: Effects of nuclear weapons. Page
5 038; 6: parts of a nuclear reactor. The
development of nuclear energy In 1972, scientists
discovered a natural chain reaction had occurred
nearly 2 billion years ago in a uranium deposit in
the west-central part of Africa. Two billion years
ago, radioactive decay had not progressed so far a
sit has today because of this, he are contained
enough U- 2...
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