Electricity Essay

History of Electricity Essay
The oldest civilization known to understand electricity was the ancient Greeks because of the
electric fish in the Nile River. In the 1600's William Gilbert an English Physician studied electricity
and magnetism; studies were continued by other researchers such as Robert Boyle and Benjamin
Franklin. Then by the 1800's scientist Allesandro Volta had identified a way to harnesselectricity in a
battery format and he had also discovered the chemical reactions that electricity could produce. Volta
also invented the first device with a steady current known as the electric battery, and he also created
the first transmission of electricity by linking positively–charged and negatively–charged connectors
and driving an electric charge through them....show more content...
How is electricity made? Electricity can be generated in power plants fueled by fossil fuels such
as coal. 1. The first step of generating electricity in a power plant is to put coal in to a machine
called pulverizer which grinds the coal into a fine powder. 2. The coal powder mixes with hot air,
which helps the coal burn more efficiently, and the mixture to the furnace. 3. The burning coal heats
up a boiler creating steam. 4. Steam released from the boiler powers and engine called a turbine,
transforming heat energy from burning coal into mechanical energy that spins the turbine engine. 5
The spinning turbine is used to power a generator, a machine that turns mechanical energy into
electrical energy. This happens when magnets inside a copper coil in the generator spin. 6. A
condenser cools the steam moving through the turbine which and it converts into reusable water.
(Source C). (Source D) After that process the power plants send out the electricity through the power
lines using a transformer which adds voltage to
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Electricity Generation Essay
Electricity is a secondary form of energy, the primary being fossil fuels, which are used to generate
it. The world's production of electricity was twelve trillion kilowatt hours in 1997, and is expected
to be close to twenty–one trillion kilowatt hours by 2020. (Fay and Golomb, 2002, 16) This is a
cause of concern because based on the United States Department of Energy's International Energy
Outlook 1997 the world's electricity generation is primarily (63%) from fossil fuels, which release
large amounts of carbon dioxide into the atmosphere when burned. The unnatural amount of carbon
dioxide in the atmosphere is already beginning to make some changes in our weather patterns, and
predictions for the future look grim. Therefore,...show more content...
(Urone, 2001, 479) The generation of an electric current is done using Michael Faraday's discovery
of electromagnetic induction. This method includes magnets, copper wire (conductor), and motion
as the key components to electric current generation. Based on Michael Faraday's discovery, the
movement of a magnetic field relative to a conductor, or the movement of a conductor relative to a
magnetic field will induce a current in the conductor. Fossil fuels, nuclear, hydro, and wind all serve
the same purpose of creating the motion needed in the electricity generation process.
In the case of wind power, the force from the wind spins the arms of a windmill creating the
motion needed to generate electricity. This type of energy source is termed renewable because it
can furnish energy for all time within our consideration. (Ristinen and Kraushaar, 1999, 90) The
wind currents are generated by solar energy from the sun that warms the air. The movement of
denser cold air toward the ground, and warmer air upward creates the wind currents needed to drive
the windmill, generating electricity. (Ristinen and Kraushaar, 1999, 133) An analysis of windmill
performance shows that no more than 59% of the kinetic energy of the wind is recoverable as
mechanical energy. Therefore, modern windmills can attain an efficiency of perhaps 50 to 70% of
the theoretical maximum. (Ristinen and Kraushaar, 1999, 135)

Life Without Electricity
Life without electricity Imagine life without electricity, not just a brief power outage. We all know
how inconvenient life becomes when our electricity is out for only a few hours. How hard it is to
remember for that short period of time that the light switch will not produce instant light, the hair
dryer will not immediately blow dry our hair, or that we can't even run water into our homes. Our
homes and lives have become so dependent on electricity it is really hard to imagine everything that
would change without it. Lifestyles in our own Ozark Mountain region have changed dramatically
with the invention of electricity and its establishment into our everyday lives. Have you ever
noticed a log cabin built at the very top of a high...show more content...
English as a today's communicating language There are many different languages in the world, and
there are simply none more impactful than the English language. The English language is an
amazing language, and it is beautiful. The shear amount of people who speak it are breath–taking,
and there are many countries that teach the global language of communication in primary schools.
With about 400 million people who speak it as their primary language, and the total of English
speakers at nearly 2 billion people around the world, it is no wonder why this language is the global
language of communication. Background and Origins Historically, the language that is language is
one of West Germanic descent, with origins in Anglo–Saxon England. The language is a culmination
of many words from many pre–existing languages around the world, but specifically influenced by
the Old Norse language of the Vikings. After the Normans conquered, where we had Old English,
it transformed into what we called Middle language, which was borrowed mostly from their
language, as far as spelling and vocabulary are concerned. Shortly thereafter, Modern English was
developed, coming along with what was called the Great Vowel Shift, which happened in 15th
century English, where they incorporated words from a great score of different languages and
dialects. In this, it is where we started using more and more

Essay on Wireless Electricity
Wireless Electricity
Devry University
Tech, Society, and Culture
Professor
February 24, 2013
Table of Contents
I. Wireless Electricity: Explanation and History 3 II. Political and Legal Influences 10 III. Economic
Questions and Considerations 16 IV.Wireless Technology with Today's Culture 20 V. Ethical
Implications of Wireless Power 26 VI. Environmental Impact30 VII. Bibliography33
ABSTRACT: Wireless electricity is not a new idea, but it has recently become revitalized. This
paper looks at the different facets of this invigorated technology. First, it talks about what wireless
electricity is and the...show more content...
Where does one even begin to go to recharge or plug in their device? Picture being in the home of
your dreams, do you want the position and placements of electrical wall outlets to tell you where
your furniture or appliances are going to go? It is these simple yet important common
occurrences that one considers when trying to simplify their lifestyle. With a more widespread
use of wireless electricity, these common concerns are almost completely nullified. On a larger
scale, just imagine being able to drive electric cars without ever having the need to stop and plug it
in. Advancements in this sort of wireless power will eliminate having to ever consider where is the
nearest recharging station. As time goes on, this wireless electricity will only become more refined
and widely used and what once was a pipe dream–turned–small scale probability will soon become a
widespread reality.
Wireless electricity is a technology that will surely change the future the more it is implemented
into our daily lives. "Wireless charging is already available for low–power applications (up to 5
Watts), suitable for mobile phones and other devices. However, medium– and high–power
applications are also being developed, and in the future your kitchen appliances

Energy Sources Essay
Introduction Electricity is generated by the use of energy. Before going further, it will be
necessary to talk briefly on what energy is all about. In this modern day, the standard scientific
definition of energy is the capacity to do work, which means ability to move an object against a
resisting force (Boyle 2003). According to (Beggs 2009) a physicist or an engineer will best describe
energy in a form of an illustration. I.e. consider a mass of 1kg which is raised 1m above a surface
on which it was originally resting. Therefore, in order for the weight to have been lifted above the
surface, a machine or someone must have performed work. Simply, what this means is that, to have
raised the mass from a low level to a higher level, work...show more content...
Examples of these fuels are coal, oil and natural gas. Because these fuels took millions of years to
form, there are growing concerns that once used up; it will not be possible to replace them. Which
means attentions will have to be shifted to the renewable energies in order to address the problem
in the future because these fossil fuels currently supplies nearly 80% of the world's current energy
consumptions (Boyle 2003). Looking at the three types of fossil fuels, Oil as a liquid fossil fuel and
natural gas as a gaseous fossil fuel are both formed from the remains of marine microorganisms.
Oil and natural gas have been called the noble fuels, by comparison with noble metals such as
gold and silver. These two are amongst the most concentrated natural stores of energy, and being
fluids, made them fairly easy to transport from one place to another and very convenient to use.
On the other hand, coal is a solid fossil fuel which is formed over millions of years by decay of
land vegetation. They can be referred to as ignoble fuel because they are particularly unattractive
energy source. In comparison to oil and natural gas, coal is less convenient to transport, store or use.
It produces up to twice the amount of carbon dioxide for the same useful heat, and this is by no
means its only undesirable environmental effect. But even with is environmental effect, coal is still
widely

Electricity Energy Story
Energy Story, Hands–On Science with Squishy Circuits, and Conducting Solutions all have one
important similarity: they all explain how electricity works! These three sources explain very
different things, but they always end up coming back to the main objective of electricity. Energy
Story explained how atoms function, and how they, as a whole, are passed through circuits to create
electricity. Conducting Solutions explains how liquid solutions including Ammonia and Vinegar are
stronger together, and create a stronger conduction of electricity. Hands–On Science with Squishy
Circuits visually shows how two batches of homemade play–dough, one made with salt, and the
other with sugar can be made into circuits when used together. Energy Story uses visual
representation to explain how atoms function, and then move further to explain how atoms...show
more content...
In this video, AnnMarie Thomas shows how two different types of homemade playdough can help
you change your students or children into circuit designers. You make on batch of playdough using
salt, and then another substituting salt with sugar. First, you take a battery pack, and plug the two
wires into two separate pieces of playdough containing salt, or the positive playdough. You can then
stick a tiny LED light into the playdough, and it will light up, but when the two positive doughs are
pushed together, you create a short in the circuits. This happens because the electricity wants to run
through the two positive doughs, not one positive dough. To prevent this from happening, you take a
piece of the sugary dough you made, or the negative dough, and place a clump of that in between to
two positive doughs. However, the sugary dough is 150 times more resistant to electricity than the
salty dough, due to the ions in the sodium chloride in the salty dough. The sugary dough then creates
a barrier, successfully making a functioning

Static Electricity Essay
Static Electricity Everything is made up of tiny particles called atoms. The atoms are made up of
even smaller parts called protons, electrons and neutrons. Protons have a positive charge (+),
electrons have a negative charge (–) and neutrons have no charge at all, they are neutral. Atoms
normally have the same amount of electrons and protons, making them neutral and having no
charge. When rubbing things together, electrons can move from one atom to another, resulting in
some atoms having extra electrons and a negative charge. The other atoms now have more protons
than electrons and a positive charge. When the charges are separated, it is static electricity.
"Electricity is present in all matter in the form of electrons and...show more content...
All of those particles are then attracted to the negatively charged grid and then the air passes through
a carbon filter to remove any odors. Static electricity is also used with photography to work a
photocopier. An "electrostatically charged drum" attracts toner particles to the image in the original
document. The metal drum inside the machine is charged at the beginning of each copy. The system
inside the photocopier then puts an image of the document onto the drum. The electric charge goes
away wherever light shines on the drum and so only the dark parts of the image are still charged on
the metal surface. The particles of black toner are oppositely charged and then applied to the drum.
The charged parts, which contain the image, are attracted to the toner and transferred to the paper
and finally attached to the paper with heat.
Static electricity can cause materials to attract or repel each other. If you use a hair dryer on your
hair and then comb through it or just comb it on a very dry day, the plastic comb will collect
negative charges from the hair and leave the hair with an excess amount of positive charges. Since
like charges repel, the hair strands will push away from each other causing your hair to stand up or
"flyaway." Static electricity can also cause a spark to jump from one material to another, like when
you touch someone and "shock" them. As you walk across something like a carpet, electrons

Electricity Essay

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Electricity Essay