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Nuclear invention
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In 1950, the first commercial nuclear power
plants were constructed. The public was promised
a non-polluting and resourceful type of energy, but
how safe was, and is, nuclear energy? Although
there are less than 500 licensed nuclear power
plants in the world, many nuclear accidents have
already been endangering civilian lives. More
serious accidents are not just likely, but inevitable
(Fairchild 29). Nuclear energy may appear to be
the ideal source of energy for the future: however,
there are many negative effects of nuclear energy
that can lead to very dangerous situations.
Energy has always been among the basic human
concerns, along with food and shelter. It takes
part in all activities, from walking to the operation
of even the most complicated equipment. Mankind
has been faced with the challenge of meeting its
energy needs without risking human health and the
environment.
The many types of energy are mechanical, thermal,
chemical, electrical, radiant, and atomic (Microsoft
Encarta). In 1987, oil supplied 32% of the energy
worldwide. Coal was next in line with 26%, then
natural gas with 17%, biomass 15%, and nuclear
energy with only 4% (Galperin 19). With the main
sources of our energy running low, nations look to
new sources to provide our society with power.
Nuclear energy, the newest type of energy, was
researched to see if it would be the most
promising type of energy for the future.
Surprisingly, nuclear energy was discovered by
accident. In 1896, the French scientist, Antoine
Henri Becquerel, conducted an experiment with
uranium salts and found that these salts gave off
their own light when exposed to sunlight. Marie
and Pierre Curie were fascinated by the
possibilities of Becquerel’s rays. The Curies
discovered exactly what the rays were and then
named the phenomenon radioactivity (Halacy 6).
During World War II, many scientists from around
the world came to the United States to work on
nuclear reactors and weapons. With much
success, they continued after World War II and
concentrated more on nuclear energy. The
scientists instantly saw that nuclear energy would
be a great source of power because of the amount
of power it released. Splitting an amount of
uranium equal to one penny would produce as
much energy as seven and a half tons of coal
(Lilienthal 85).
A nuclear power plant is where energy is formed
when nuclear fission or fusion takes place. So far,
however, only the power of fission has been
controlled and used for energy. There are many
parts of the nuclear power plant, including the
reactor, generator, control room, cooling systems,
and the electrical, air, and water lines. The heart of
the nuclear power plant is its reactor core, which
contains a few hundred fuel assemblies. The
reactor core is encased in a pressured steel tank
Nuclear energy must be a consideration for the future with the rapidly depleting supply of fossil fuels. This type of energy can be created through nuclear fission and nuclear fusion. Nuclear fission is the splitting of a heavy atom into two or more parts, releasing huge amounts of energy. The release of energy can be controlled and captured for generating electricity. Nuclear fusion involves bombarding hydrogen atoms together to form helium. In the long run, nuclear fusion has greater potential than fission.
Nuclear power has always been a controversial issue because of its inherent danger and the amount of waste that the plants produce. Once considered a relatively safe form for generating energy, nuclear power has caused more problems than it has solved. While it has reduced the amount of traditional natural resources (fossil fuels), used to generate power like coal, wood, and oil, nuclear generating plants have become anachronisms. Maintaining them and keeping them safe has become a problem of immense proportion. As the plants age and other technology becomes available, what to do with these “eyesores” is a consuming issue for many government agencies and environmental groups. No one knows what to do about the problem and in many areas of the world, another nuclear meltdown is an accident waiting to happen. Despite a vast array of safety measures, a break in reactor pipe or a leak in a containment vessel, could spell another environmental disaster for the world.
Nuclear power has no place in having a safe, clean, sustainable future. Today, the manufacturing of nuclear power plants has become a critical topic throughout the world that many strongly believe should be stopped. Nuclear Power is not safe anywhere in the world nor is it environmentally friendly. Nuclear power plants are truly something that could cause mass destruction in the world and has the potential to wipe out a whole country with ease. Despite proponents’ that claim that nuclear power is safe, there is a history that proves otherwise and marks a number of disasters caused by nuclear power plants.
Central Idea: Nuclear energy only contributes a small amount to the world’s electricity yet it has hazards and dangers that far out-way its benefits. There are many other alternative power producing sources that can produce energy more efficiently and more safely than nuclear power plants can.
After the United States developed the atomic at the end of World War II, interest in nuclear technology increased exponentially. People soon realized that nuclear technology could be used for electricity, as another alternative to fossil fuels. Today, nuclear power has its place in the world, but there is still a lot of controversy over the use of nuclear energy. Things such as the containment of radiation and few nuclear power plant accidents have given nuclear power a bad image. However, nuclear power is a reliable source of energy because it has no carbon emissions, energy is available at any time, little fuel is needed for a lot of energy, and as time goes on, it is becoming safer and safer.
Nuclear energy is energy that is released by reactions within the atomic nuclei, through nuclear fission or fusion. Nuclear energy is also called atomic energy (dictionary.com, 2013). Nuclear energy is produced in nuclear power plants. Nuclear power plants create electricity by heating water to create steam. The steam runs a generator that creates the electricity. Many types of fuels can be used to create heat and generate steam. Nuclear power plants create the heat by splitting atoms. Nuclear power plants use a radioactive element found in rocks called enriched uranium. Enriched uranium is used because when it breaks down in nature it heats Earth’s crust. In nuclear power plants enriched uranium heats water to create steam. Power plants create energy by splitting the nuclei inside each granule of uranium. This process is called nuclear fission (How does energy work, 2013).
...sp; Becquerel's discovery had not aroused very much attention. When, just a day or so after his discovery, he informed the Monday meeting of l'Académie des Sciences, his colleagues listened politely, then went on to the next item on the agenda. It was Röntgen´s discovery and the possibilities it provided that were the focus of the interest and enthusiasm of researchers. Becquerel himself made certain important observations, for instance that gases through which the rays passed become able to conduct electricity, but he was soon to leave this field. Marie decided to make a systematic investigation of the mysterious 'uranium rays'. She had an excellent aid at her isposal - an electrometer for the measurement of weak electrical currents, which was constructed by Pierre and his brother, and was based on the piezoelectric effect.
In the early 1900’s, scientists learned that they had the ability to produce nuclear energy (Anderson 4). Though, throughout the early 1900’s how to produce this energy was still puzzling to most scientists. Leo Szilard, a Jewish man fleeing from Germany in 1933 figured out that colliding a neutron with a nucleus would start the chain reaction needed to produce massive amounts of energy. Then, this energy could be channeled into a weapon that could wipe out an entire city. Szilard was afraid that his new nuclear research might get into the wrong hands. Eventually, he turned to another German scientist that was known around the world, Albert Einstein. Einstein agreed that this research in the grasp of Germany could mean the end of days. Finally, they decided it was best to give it to a strong ally power, the United States (Anderson 12-17).
A. Attention Material: Have you ever thought about energy? Where it comes from and how it powers things? Nuclear energy is one of the many types of energy sources in the world today. It is a non-renewable resource such as coal and natural gas. The first nuclear reactor ever created by man was built in December of 1942. The discovery of building a nuclear power plant was discovered over 150 years ago (Nuclear Power: Villain or Victim?, p. 15).
To begin, nuclear power is produced by nuclear fission, which is the splitting of an atom to start a chain reaction (“11 Facts”). This chain reaction produces massive amounts of heat. Nuclear reactors take advantage of this heat by pumping water into the reactor, which in turn produces steam. The steam then becomes pressurized through a pipeline and exits into a turbine (“How do Nuclear”). The pressurized steam causes the turbine blades to spin, producing power which is linked to a generator for use in the main power lines. When the steam passes the turbine blades, it goes past cooled pipes and condensates (“How do Nuclear”). After the condensation process is finished and the steam reverts back to water, it is pumped into the reactor again, thus completing the process of producing nuclear-based power.
to help complete the job. In the research facilities, the staff worked around the clock studying chemicals and the atoms that composed them. The main focus was on uranium, plutonium, and polonium. As the extensive research continued, scientist were discovering new concepts about the atoms and their values. In 1943, the Quebec Agreement was signed, creating a partnership between the U.S, the United Kingdom, and Canada (Roosevelt). The research and development of atomic bombs progressed quickly as there was a “full and effective interchange of information and ideas” between the countries (Roosevelt). Additionally, the study of atomic energy led to a new form of physics, known as health physics. The new form was discovered after many of the workers spent long periods of time with radiation and nuclear weapons, the time spent around these chemicals caused them to become ill. This study focused on understanding radiation effects, monitoring it, and how to protect the workers’ health. All of these studies can still be applied to today’s methods of dealing with nuclear
She had two university degrees, a scholarship, and a published paper on magnetization of tempered steel. Pierre and Marie’s first daughter, Irene, was born September 12, 1897, around this time the Curies’ faced their attention towards radiation from Uranium, which had been recently discovered Antoine Henri Becquerel. It was Marie’s thoughts that the radiation was an atomic property and it had to be found in other elements. Marie invented the word “Radioactivity” ( the automatic release of radium ). While Marie was looking for other sources of radioactivity, she started focusing more pitchblende, a mineral known for its uranium content.
As the demand for global energy rises, nuclear energy is the world 's largest source of emission-free energy and has more energy than any other fuels on earth in a weight to energy produced ratio. Nuclear power plants are capable of providing larger amount of energy in a minimum amount of space. As the scientists at The Nuclear Fuel Cycle wrote: “Typically, some 44 million kilowatts per hour of electricity are produced from one ton of natural Uranium. The production of this amount of electrical power from fossil fuels would require the burning over 20,000 tons of black coal or 8.5 million cubic meters of
As the demand for global energy rises, nuclear energy is the world 's largest source of emission-free energy and has more energy than any other fuels on earth in a weight to energy produced ratio. Nuclear power plants are capable of providing larger amount of energy in a minimum amount of space. As the scientists at The Nuclear Fuel Cycle wrote : “Typically, some 44 million kilowatts per hour of electricity are produced from one ton of natural Uranium. The production of this amount of electrical power from fossil fuels would require the burning over 20,000 tons of black coal or 8.5 million cubic meters of gas.” Nuclear energy has very high volume to energy production ratio; this is due to the elements which are used as nuclear fuels such as uranium, plutonium, and other nuclear elements which are used as nuclear fuels. Nuclear fuels release their potential chemical energy
The greatest disadvantages of nuclear energy are the risks posed to mankind and the environment by radioactive materials. ‘On average a nuclear plant annually generates 20 metric tons of used nuclear fuel cla...