Nuclear Energy
The study of nuclear
energy began for the same reasons that most scientific studies are
begun; to understand more about the universe and the laws by which the
universe works. The more knowledge we have about the universe, the more
we can control the world in which we live.
Nuclear energy is contained in the center, or nucleus of an atom. This
energy is also known as atomic energy because its obtained from atoms,
unfortunately this is not a good choice of words (because many other
energies are obtained from atoms). An atomic bomb explosion shows just
how powerful nuclear energy really is. Such as the underwater explosion
of an atomic bomb at Bikini during 1946. This powerful type of energy
comes from many things such as atoms and subatomic particles; an atom is
a tiny bit of matter that has very little weight. They are much too
light to be weighed directly, but scientists have developed methods of
determining these tiny weighted by using special libratory instruments.
Hydrogen is the lightest of all atoms and carbon atoms weigh twelve
times more than the hydrogen atom. Atoms that make up one element are
not like atoms that make up another element.
These (atoms) are not simple particles, their structure is very complex.
They are, in fact, made up of smaller bits of matter called subatomic
particles. An atom has two parts. Those two parts are; 1)at the center
is a nucleus, a densely packed core composed of two kinds of particles:
protons and neutrons and 2)electrons. The charge in a nucleus of an atom
is carried by a particle called a proton, the number of protons in an
atom's nucleus is called the atomic number of the atom. Atomic numbers
are always whole numbers such as +92. Each atomic number is always a
whole number, and each chemical element has its own atomic number.
Protons have a positive electrical charge, yet electrons have a negative
charge and since opposite charges attract, it keeps them in their orbits
around the nucleus. Neutrons are neutral and weigh a bit more than
protons. The breaking apart or joining together of atomic nuclei is
called a nuclear reaction. A tremendous amount of energy may be released
by a nuclear reaction. Nuclear energy is housed in a nuclear reactor.
There are many types of nuclear reactors such as a pressurized water
reactor.
There is no specific place where nuclear energy may be found, neither is
there a special geographical place a nuclear power plant must be
located. There are many hundreds of nuclear power plants throughout the
world, not to mention, many military and research reactors. In the
United states alone there are over a hundred plants; about 15% of the
nations electricity is produced at these plants. France is the leading
user of nuclear energy throughout the world, 65% of their electricity is
produced in Nuclear power plants. Other leaders include; Belgium-60%,
Sweden-50%, Switzerland-40%, Finland-38%, West Germany-30%, Japan-22%,
Spain and Britain-20%, and Soviet-Union-14%. There have been many
accidents concerning nuclear power plants, despite the usually good
safety record. Two of the most serious accidents have taken place in;
1)the United States, when a Unit 2 power plant on Three Mile Island,
Southeast of Harrisburg, Pennysania and 2) U.S.S.R. the worst accident
concerning nuclear reactors occurred on April 26, 1986 at the Chernobyl
reactor #4 located in a reactor complex near Kiev, Soviet Ukraine.
There are advantages and disadvantages
of nuclear power. Nuclear weapons are the most powerful and fearsome
weapons ever introduced to man. Not only because of the enormous amount
of physical damage that results from their detonation but also because
of the radiation it releases. Radiation can have long-term effects on
humans and our environment. these long-term effects consists of things
like:
1) radiation disrupts the process that takes place in the nuclei of
living organisms cells, decreasing the resistance of disease and
increasing risks of developing cancer.
2)Abnormalities such as mongolism can be passed to offspring. The damage
done to our environment is irreparable. Not to mention it is unknown if
the disposal of nuclear waste will have any effects on our environment
had we will not know until many years to come. The advantage of nuclear
energy is it's a great source of power used to produce electricity for
things such as light.
Many people throughout the world use nuclear energy in their everyday
lives. It is used to produce electricity for running our homes, schools
and businesses. Also lighting, heating and cooling.
Nuclear energy is better than any other type of energy because it is the
most powerful type of energy that can be created.
It is better than the following energy for example:
1) Hydro energy,
because when created, rivers have to be blocked by dams. Thereby, most
likely, flooding of wastelands where certain animal types may have their
homes would be destroyed and maybe even cause death to those animals. In
same cases possible extinction.
2) Heat energy created by the burning of
wood because it is very destructive to our forest. Trees are a necessity
of oxygen, shelter and food to animals and even humans. Finally
3) solar
energy because you don't have to depend on the sum to shine.
In conclusion due to the potential for accidents or sabotage at nuclear
power plants, they are not as common as power plants for other types of
power/energy. The problems associated with radioactive waste produced,
these plants have long been a subject of controversy. The development of
nuclear energy, for both peaceful and wartime uses is much more than a
scientific issue. It is also a prominent public issue among people in
all nations. Because of disasters at nuclear power plants such as the
one at Chernobyl, people everywhere refuse to except nuclear power
plants anywhere near their homes. They also refuse to have nuclear waste
disposal sites near their homes no matter how safe the government and
companies may say it is.
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