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One Last Time George Mallory Step
695 words
The cold gray steel of the axe arced one last time
through the air, the pick burrowed itself one last
time into the frozen blanket of snow, and the hand
that held it took a final pull, to ensure a secure
placement. After a brief pause, George Mallory
took a deep breath, and pulled himself over the
crux, and onto the top. Slowly, shakily, he stood
up, and took a look around, the first time
American eyes had seen the world from this vantage
point. This was it. He had done it. He was the
first Amer...
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Myths And Legends Oxygen Atoms
878 words
In certain polar regions of the earth, a rare and
fascinating phenomenon occurs in the dark season
of winter. This phenomenon is called the Northern
Lights, or auroras. In areas where auroras can be
seen, the sun shines brightly for six months and
then disappears for the next six. The sun follows
a straight path across the sky, rising in the
north and setting in the south. This is because of
the latitude of these regions. Unlike other
regions of earth, the polar regions either
completely face th...
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Hydrogen Bombs Rain Forests
709 words
Planet Earth: Fate of The Earth was a powerful,
informative, and inspirational documentary. The
narrator, Richard Kiley, progressed through many
points about our precious earth including her
beginnings, her slow deterioration by man as well
as other factors, and theories as to her what
could be her end. The beginning images of earth,
approximately four million years ago, can be
described a barren yet fertile land with the
prospect for life to flourish. Prehistoric
volcanoes exploded with gases a...
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Problem Of Global Warming Amounts Of Carbon
456 words
The problem of global warming, an increase in the
average temperature on Earth, is getting worse.
The Earth has warmed 0. 3 to 0. 6 degrees Celsius
since the late 1800 s. Scientists believe that the
cause is the greenhouse effect, the process of
trapping heat in the Earth's atmosphere because of
the presence of large amounts of carbon dioxide,
chlorofluorocarbons, methane, and nitrogen oxides.
Less oxygen is being produced and cleaning the
atmosphere allowing more of these gases to do its
work o...
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Organ Donation Brain Dead
568 words
The debate regarding the ethical issues about
organ donation and transplantation has been
present for many years. This is primarily due to
the unique exchange that must occur. No other
treatment so intimately involves the public.
People must donate their organs or tissues to make
the treatment possible. The question that remains
is why are people not donating their organs? One
of the main reasons people do not donate organs is
distrust of the medical profession. People are
afraid that physicians...
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Description Of A Class Fire Extinguisher
766 words
A fire extinguisher is a portable or movable
apparatus used to put out a small fire by
directing onto it a substance that cools the
burning material, deprives the flame of oxygen, or
interferes with the chemical reactions occurring
in the flame. Water performs two of these
functions: its conversion to steam absorbs heat,
and the steam displaces the air from the vicinity
of the flame. Many simple fire extinguishers,
therefore, are small tanks equipped with hand
pumps or sources of compressed gas ...
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Coal And Coke Diamond And Graphite Carbon
448 words
CARBON AND HOW IT EFFECT OUR LIVES Although widely
distributed in nature, carbon is not particularly
plentiful (it makes up only about 0. 025 percent
of the Earth's crust). Yet it forms more compounds
than all the other elements combined. In 1961 the
isotope carbon- 12 was selected to replace oxygen
as the standard relative to which the atomic
weights of all the other elements are measured;
carbon- 14, which is radioactive, is the isotope
used in radiocarbon dating and radio labeling.
Elemental ...
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Sleep Apnea Sleep Disorder
1,248 words
Sleep Apnea Human Physiology - Biology 60 The
dictionary defines sleep as "The natural periodic
suspension of consciousness during which the
powers of the body are restored" (Webster's 638)
If one is waking up on an average of 300 times per
night, the chances of complete body restoration
are minimal. The Greek word apnea literally means
"without breath." An estimated 30 million
Americans stop breathing during their sleep
sometimes 30 - 40 times per hour and often for a
minute, or longer each tim...
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Coronary Heart Disease High Blood Pressure
2,216 words
The work is devoted to the description of the
coronary heart disease which is now considered as
holistic by the World Health Organization. There
will be described the precautions due to which it
is possible to avoid the disease, the risk factors
of it, the statistics and the influence of the
disease on the daily life of people. The work is
aimed at making people understand that coronary
heart disease is a very serious problem today, it
is becoming an epidemic, and it is necessary to
remember all...
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Massage Therapy Soft Tissues
1,618 words
Different types of Massage from around the world
and the effects they can have on your body. The
art of massage is on of the most impressive
technologies conquered by human hands. What can
astonish more than magic of touch? Nothing I think
and that is why increasing popularity of massage
therapy doesnt surprise. What is massage therapy?
According to definition found on Massage Therapy
101 Massage therapy is a hands on manipulation of
soft tissues and joints of body. The soft tissues
include musc...
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Hydrogen And Oxygen Simple Sugars
329 words
Carbohydrate Structure and Function Carbohydrates
are molecules composed of carbon, hydrogen, and
oxygen. They are polymers of the basic units
called monosaccharides. Dissaccharides are
compound sugars, composed of two monosaccharides,
(simple sugars) bonded together. Molecular
Structure For example, two molecules of glucose
can bond together to form the Disaccharide
Maltose. Sucrose and Lactose are other common
Disaccharides. Dissaccharides are formed through
condensation reactions that result ...
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Life On Earth Newly Discovered
881 words
Until recently, scientists believed that the sole
source of energy responsible for life on earth was
the sun. In 1977, a group of scientists
researching the theory of plate tectonics,
traveled to the floor of the equatorial Pacific
Ocean and discovered something that could possibly
explain how life began on this planet. From the
Galapagos Rifts thermal springs, scientists
discovered densely populated communities of
several species never before observed. Since that
time the Federal Government has...
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H 2 O Mass Spectrometer
531 words
AMass Spectrometer Mass Spectrometer A mass
spectrometer produces charged particles (ions)
from the chemical substances that are to be
analyzed. The mass spectrometer then uses electric
and magnetic fields to measure the mass (weight)
of the charged particles. There are many different
kinds of mass spectrometers, but all use magnetic
and / or electric fields to exert forces on the
charged particles produced from the chemicals to
be analyzed. A basic mass spectrometer consists of
three parts: 1. ...
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Electron Transport Plant Cells
602 words
name = Fnord Discordia email = publish = yes
subject = Biology title = Mitochondria and
Chloroplast Essay papers = Biology Mitochondria
and Chloroplast Essay I. Introduction Out of all
the organelles there are two that have fascinated
microbiologists for the past hundred years. The
first is the mitochondria, nicknamed the
powerhouse of the cell. The second is the
chloroplast in plant cells that have functions
similar to those of the mitochondria. What do
these organelles do? What are the similar...
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Myocardial Infarction Coronary Arteries
562 words
When Myocardial Infarction MYOCARDIAL INFARCTION
When someone has a myocardial infarction (MI)
people think a cold, right? Well its not, its a
heart attack! Its the number one cause of death in
the United States and kills about 330, 000
Americans each year. People dont realize how big
the effect of a heart attack is until they
experience their own. By then it is to late! Here
are some information explaining the causes,
symptoms, and the solution of a heart attack that
will help you, your family,...
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Sickle Cell Anemia Red Blood Cells
827 words
Sickle Cell Sickle cell is the most common
inherited blood disease, which causes waves of
pain, damage to vital organs, and some die in
childhood or early adulthood. The disease is most
commonly found in blacks and Hispanics of
Caribbean descent. Around one out of every 400
blacks inherits the sickle cell disease. Sickle
cell occurs when two sickle cell genes or a
combination of one sickle cell gene plus any one
of several other hemoglobin genes. This report
will go in depth with many major issu...
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Sickle Cell Anemia Sickle Cell Disease
879 words
The problem is that sickle cell anemia affects
about 72, 000 Americans in the United States.
Sickle cell anemia is an inherited disease in
which the body is unable to produce normal
hemoglobin, an iron-containing protein. Abnormal
hemoglobin can morph cells that can become lodged
in narrow blood vessels, blocking oxygen from
reaching organs and tissues. The effects of sickle
cell anemia are bouts of extreme pain, infectious,
fever, jaundice, stroke, slow growth, organ, and
failure. Sickle cell a...
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Sickle Cell Anemia Sickle Cell Disease
868 words
The problem is that sickle cell anemia affects
about 72, 000 Americans in the United States.
Sickle cell anemia is an inherited disease in
which the body is unable to produce normal
hemoglobin, an iron-containing protein. Abnormal
hemoglobin can morph cells that can become lodged
in narrow blood vessels, blocking oxygen from
reaching organs and tissues. The effects of sickle
cell anemia are bouts of extreme pain, infectious,
fever, jaundice, stroke, slow growth, organ, and
failure. Sickle cell a...
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Connective Tissue Breast Implants
1,260 words
Silicon is an essential element in humans, found
in significant concentrations in hair, bone,
epidermis and dental enamel. It is also the second
most abundant element on the earth? s crust,
constituting about 28 % by weight. (cite) Many
foods and beverages, including certain vegetables,
grains, rice, and beer have been shown to contain
significant amounts of silicon. Silicone is a
synthetic form of silicon and includes 40 %
silicon by weight. The silicones are synthetic
polymers and are not ther...
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Bushnell Turtle Onboard Oxygen Supply Submarine
315 words
Military submarines were invented by David
Bushnell. He was born in Saybrook Connecticut in
1742, and died in 1824. He built the first
military submarine in 1775. The name of this
submarine was, ? Bushnell? s Turtle. ? The reason
for this is because it looked like two turtle
shells fused together to form an egg-like case.
Lead ballast kept the craft upright and it was
propelled by hand-operated screw-like devices. The
submarine was submerged when a valve admitted
sea-water into a ballast tank, a...
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