The Sinus Node

The Sinus Node
The Sinus node is a small bundle of specialised cells located in the right atrium of the which
generates an impulse in the heart. The electrical activity spreads through the walls of the atria and
causes them to contract. This forces blood into the ventricles, which sets the rate and rhythm of the
heartbeat. A pacemaker is needed to maintain an adequate heart rate, either because the heart's
natural pacemaker – sinus node – is not fast enough or there is a block in the heart's conduction
system.
As knowledge of the human body expanded a range of electrotherapeutic experimentations were
conducted by pioneering scientists and physicians. Methods utilized both direct current and static
electricity. It became clear that the heart was an organ especially sensitive to electricity as well and
as early as 1788, attempts were made to treat irregular heartbeats with an electric shock. By 1932, a
primitive form of today 's pacemaker was invented as a hand–cranked device by Albert Hyman
(Engineering and Technology History Wiki, 2015). Hyman's pacemaker was powered by a hand–
wound spring–driven generator that provided six minutes of pace making without rewinding
(Haddad, Houben and Serdijin, 2006). Today's pacemaker weighs about 28 grams and is
approximately the size of an Australian 50 cent piece (Medtronic n.d.).
The objective of electrical stimulation is to replace natural biological impulses by external artificial
electrical impulses. Electrostimulation is needed when the heart
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How The Utilities Industry Changed The Us And Gis Essay
12/12/2016
Utilities in the US and GIS
GIS is critical to the utilities industry in the US. It allows them to perform mundane tasks that they
are required to perform with new levels of ROI (return on investment), safety, and man–hour
efficiency. It also allows them to save the taxpayer a substantial sum of money yearly, and also the
ability to remain profitable while billing for less. In this paper, I will first discuss some of the basic
ways that the utilities industry in the US is using GIS to achieving all of these things, then into each
part of the electrical utilities industry and then delve into some of the more technical items used by
the industry and their function within the industry as a whole. Geography, as defined in the
Cambridge dictionary is " the study of features and systems of the earth's surface, including
continents, mountains, seas, weather, and plant life, and of the ways in which countries and people
organize life within an area."(3) Therefore, I think it is important to define the history of electricity
to give perspective, and its physical properties on a smaller scale to help understand larger concepts
from a power engineering perspective. Unfortunately, there is a lot of relevant information to cover
before GIS is brought into fruition.
Electricity had always been in a rather elementary and simple form of static electricity, until people
discovered we could harness its properties to conduct work, light spaces and various other uses.

A Definition Of System Services Essay
System services
This chapter contains a definition of system services (SyS) which are both managed and coordinated
by ČEPS.
ČEPS is, according to the Energy Act, responsible for ensuring system services for the power
system at the transmission system level. The system services provided by ČEPS serve to ensure both
the secure and reliable operation of the power system and the quality of electricity transmission and
satisfy the various international obligations set out by the UCTE. ČEPS provides the following
system services:
1) Maintaining the quality of electricity
This service entails the use of the following technical–organisational tools: o Management of the
summary power reserve for primary frequency control o Secondary f/P control o Secondary voltage
control o Tertiary voltage control o Ensuring the quality of the voltage sine wave o Ensuring
transmission stability
The criteria for the quality of electricity follow current technical standards V.3.
2) Real time active power balancing
This service requires the use of the following technical–organisational tools: o Load frequency
control o Tertiary active power control o Dispatcher reserve
The criteria for evaluating the quality of active power balancing (the control of power interchange at
the planned level) are contained in recommendations provided by the UCTE (Ground rules
concerning primary and secondary control of frequency and active power within the UCPTE) and in
the Catalogue of requirements for

Electrical Charge : Static Electricity
Electricity: Static Electricity Static electricity : Static electricity is an unbalanced electric charge
This occurs when there is unbalanced number of neutrons and protons, unlike current electricity that
occurs when there are conductors involved The cause of static electricity is when there is an
unbalanced molecular construction or non conductive insulators such as plastic, glass, ceramics, and
other non conductive materials All physical objects are made up of atoms –Charges: One of these
properties is called an electrical charge. Protons have a "positive" (+) charge, electrons have a
"negative" (–) charge, and neutrons have no charge, they are neutral. The rubbing of some certain
materials against one another can ... Show more content on Helpwriting.net ...
– Removing Static Charge: Removing a static charge by providing a path to the ground: Grounding
–Electrons move from negatively charged objects to ground until object is neutral – Electrons move
from ground to neutralize positively charged objects Information from:
http://www.gpb.org/chemistry–physics/physics/801 – http://www.gpb.org/chemistry–
physics/physics/801 Conductors and Insulators: Conductor – conductor is an object or type of
material that allows the flow of electrical current in one or more directions. The electrons move
easily to the other side, away from the object Insulator – Do not allow electric charges to pass
through them. Electrons in the atoms and molecules move very slightly to one side of the object but
are not released. In static electricity the charges do not flow continually, because some of the
charges of an object are being stripped from the other. This makes Static electricity mainly based on
insulators because the charges are not released, but stay in one spot. Discharge of static electricity
can cause hazards in situations with flammable substances where a small electrical spark might
ignite explosive mixtures. Protons, neutrons and electrons are different from one another; they have
their properties and/or characteristics. All mater have

Lab Report On The Electrode
Anode: The electrode in an electrolytic cell where electrons shift from the electrolyte to the battery.
Cathode: The electrode in an electrolytic cell where electrons shift from the battery to the
electrolyte.
Electrolyte: Any substance that, when mixed into water, conducts an electric current.
Electrolytic cell: A system where electrical energy is used to make chemical changes.
Electroplating: A process that uses an electrolytic cell to put a thin layer of metal on a kind of
surface.
Ion: An atom or molecule with a net electric charge because of the loss or gain of one or more
electrons Electrolysis is the means of breaking down a solution or a liquid compound by having an
electric current go through it. Electrolysis is utilized in removing impurities in copper, tin, silver,
and gold, and for acquiring sodium, magnesium, aluminum, and other metals derived from their
ores. Electroplating is when you utilize electrolysis to cover a metallic item with a slim coating of a
different metal. Anodizing is the utilization of electrolysis to cover a metallic item with a slim
coating of oxide for conservation against deteriorating and damage. Electrolysis is additionally
utilized for the yielding of caustic soda, chlorine, oxygen, hydrogen, and other substances.
Electrolysis is done in an electrolytic cell. The electrolytic solution or liquefied electrolyte is in
contingence with two conductors known as electrodes in the cell. When the output of breaking down
the solution is a

How Did Benjamin Franklin Contribute To The Discovery Of...
One of the most important discoveries made in science was the invention of electricity. Can you
imagine going through a day without the use of electricity? The discovery of electricity had changed
how this planet functions .Electricity was first discovered around 600 B.C by the ancient Greece by
rubbing amber and fur to create static electricity. A lot of people contributed to the discover of
electricity including William Gilbert, Benjamin Franklin, and many more. Benjamin Franklin
conducted an experiment to show that lighting was electricity. He experimented with a kite, key, and
a storm in which he proved that lightening are tiny electric sparks. Electricity is used in our daily
lives, led to new discoveries in science, made easier for

Essay On Computer Advantages And Disadvantages
When building a computer, there will be some challenges you might have to face in gathering
information, assembling a computer, and supporting the system after assembly. While on the other
hand, it can be difficult to choose what computer you should buy. The difference of buying and
building a computer comes down to personal wants, but there are disadvantages and advantages for
both options.
The challenges you would face when building a computer can sometimes seem overwhelming. As
you are gathering information, you have to make sure that everything is compatible with each other.
You can't go out and buy a motherboard, only to discover that one of your other parts doesn't fit the
right requirements. You also need to spend a good deal of time researching what you want, so to
make sure that things work together. When assembling the computer, you have to worry about being
gentle with your hardware. You have got to make sure that you keep yourself static free as well
because if you do not ground yourself while in the building process, you could cause damage to
your components. One way to avoid this is to not wear wool or rub your socks on the carpet; This
helps to prevent a build up of static electricity, and you could always buy an antistatic wrist strap.
By building a computer, you will have to fix the problem if anything goes wrong. This can be a
challenge since you have different components from different companies. If you don't know what
you're doing, you will have to pay for those damages; You can't get much help from one company to
try to repair your computer either. Another challenge you face in building a computer, is that you
have control over what goes into the computer. This can be a challenge since there is such a large
variety of components to choose from, with prices being different, and the parts having different
performances. At the same time, this just adds to the idea of full customization for the customer. So
the 3 big cons are; You are responsible for fixing a damaged part, You have to make sure everything
is compatible with each other, and it could be sometimes possible you will have to spend more
money to get the things that you want performance wise. The 3 big pros are; You get full

Science Study Notes-Grade 9
Science Study Notes
An electrically uncharged object is neutral.
Conduction is not a method of charging an object.
If electric charged stay in one spot, they are said to be static.
In charging by induction, when a negatively charged rod is brought near a metal leaf electroscope
the electrons in the electroscope move away from the rod.
A statement that is not part of the Law of Electric Charges is that neutral objects are attracted to
uncharged objects.
The purpose of a GFCI is to protect people from getting electrocuted.
True: Lightning can travel from cloud to cloud. Secondary cells can be recharged. A long wire has a
higher resistance than a short wire.
False: Cells connected in parallel will make a bulb burn brighter. A voltmeter ... Show more content
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Charging by induction is when an induced charge has a temporary rearrangement of electrons.
The electrostatic series is a list of how well things hang on to electrons Acetate Glass Wool Fur/hair
Silk Ebonite Plastic Rubber Gold
An insulator is something that electrons are not able to move freely through, such as rubber and
plastic. A conductor is an electrical conductor that lets electrons move freely from atom to atom. Ex.
Copper, aluminum, and some types of wood.
Voltage is energy (electric potential) that each electron is given in a circuit. It is measured in volts
(V). Current is the rate at which electric charges are moving past a point. It is measured in amperes
(A).
A) B)
A primary wet cell is
A primary dry cell is
A secondary cell is
Cells are connected in series to increase the voltage, and to make the bulb burn brighter. Cells are
connected in parallel because then there is more than one path for the electrons to flow through, and
the battery will last longer.
Resistance is the ability of a substance to slow the flow of electrons
Connectors are wires.
Electric circuit control devices can be a: switch, button, breaker, plug, remote, or dial.
Electric load is an appliance that uses electricity, such as a bulb, hair dryer, T.V., IPod, and toaster.

A source of electrical energy can be given from a battery, wall outlet, or generator.
Grounding and

Connecting Frame Of Electrical Equipment
INTRODUCTION
Grounding or earthing explain the concept of connecting frame of electrical equipment (non–current
carrying part) or some electrical part of the system (e.g. neutral point in a star of the system, one
conductor of the secondary of a transformer) with the respect to the earth. In electrical engineering,
ground or earth is the reference point in an electric circuit from which voltage is measured, a
common path for electric current, or direct physical connection to the earth. Bear in mind that this
connection to earth may be through a conductor or some other circuit element which may be;
resistors, circuit breakers depending upon the situation.
In electricity supply system, an earthing (grounding) system defines the electrical potential of the
conductors relative to that of the earth's conductive surface. The choice of earthing system has
implications for the safety and electromagnetic compatibility of the power supply.
Electrical circuit may be connected to ground (earth) for several reasons:
In main powered equipment, exposed metal part are connected to ground to prevent user contact
with dangerous voltage if electrical insulation fails.
Connection to ground limits the build–up static electricity when handling flammable product or
electrostatic–sensitive device.
EARTHING SYSTEMS
Earthing (grounding) system defines the electrical potential of the conductors relative to the earth's
conductive surface. Regulations may be vary considerable between

Nikola Tesla, a Mastermind in Wireless Energy Essays
Tesla and Wireless Energy Nikola Tesla a man enshrouded in mystery that had been forgotten in
history. He was a mastermind of inventions and innovations. He alone created alternating currents
and generators, a way to freely transmit electricity, and an idea of free wireless energy for all. If
Tesla had more of a chance to finish his crowning achievement it everyone could have free wireless
energy. Nikola Tesla was born on July 9, 1856, in Croatia under a thunderstorm. Tesla's Father and
Mother were Serbian. His Father was a priest at an East orthodox church while his Mother did
sowing at home. During that time boys had two options; to either join the army, or become a priest.
His Father was eager for him to become part of the church so ... Show more content on
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Tesla's Father moved to Gospic and Tesla became even more distressed because of his love of his
old village. His father had done more training to increase his memory of the bible; but moreover
Tesla had found something intriguing to him a shelf of books in the back of the church that Tesla
enjoyed reading to pass the time. Tesla also developed strange likes, dislikes and habits. At the age
of 12 Tesla found a Serbian translation of a book called Abifi. "Abifi in the beginning of the Novel
is unruly at the beginning but ends dying as a hero for his prince and country." Inspired by this Tesla
used his will to begin to control his visions, and use them for more productive purposes that will
help him on designs. Soon after Tesla had begun elementary school. Tesla excelled at school, and
during school became ill. So ill that doctors and physicians gave up on Tesla (they didn't whether or
not it was related to his visions or that he had visions), but recuperated slowly while reading books
that the local library had sent in volumes. After he completed his studies at Karlovac, Tesla went
home to Gospic. When he returned there was an epidemic of cholera. Tesla fell ill and fought the
multitude of sicknesses and diseases for nine months. He was bed ridden and fell into "dropsy
pulmonary trouble" (TESLA) until his coffin was ordered. One night when Tesla was near death, his
father rushed in to his side and

How Levitation Can Be Performed
Levitation is a topic that cannot be explained because nobody knows how it works. Nobody knows
how levitation works but some theories are that it has to do with a magnetic force of some sort, and
there are others who think that there is no such thing as levitation and it's somebody just hung by a
string.The most well known way Levitation is know is because it is a famous magic trick that
magicians sometimes perform at shows. Another reason it is well known is because it is in movies.
One example of this is American magician Harry Kellar performed a trick where his assistant,
introduced as a Hindu princess, was brought onto the stage apparently sleeping on a couch. He
would then levitate her, passing a hoop back and forth along her body to show that she was not ...
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The most obvious way Levitation can be performed is by raising something up, but there are many
other ways that Levitation can also be performed like Magnetic Levitation can be used for melting
different things or for maglev train. A Maglev train is a public transport technology that uses electric
levitation to move vehicles with making contact with the ground or an electrical pickup. Although
Magicians are the most well known people to perform levitation the are not the only ones to know
how to use it. For many years, NASA scientists have used superconducting magnets to levitate
insects, frogs, and mice. There are many ways that Magnetic Levitation can shape the future. Some
examples are flying cars, magnetic bearings, and Studying weightlessness. I believe that Levitation
is real and that it can be performed for a number of reasons. My first reason is that it has been
proven that levitation can be Performed because NASA made crickets and other insects levitate
before. My second reason is if levitation really was fake wouldn't people have already found it out
about it and proved that

Electric Power Transmission
Electric power transmission
"Electric transmission" redirects here. For vehicle transmissions, see diesel–electric transmission.
[pic]
[pic]
400 kV high–tension transmission lines near Madrid
Electric power transmission or "high–voltage electric transmission" is the bulk transfer of electrical
energy, from generating power plants to substations located near population centers. This is distinct
from the local wiring between high–voltage substations and customers, which is typically referred to
as electric power distribution. Transmission lines, when interconnected with each other, become
high–voltage transmission networks. In the US, these are typically referred to as "power grids" or
just "the grid", while in the UK the network is ... Show more content on Helpwriting.net ...
High–voltage overhead conductors are not covered by insulation. The conductor material is nearly
always an aluminium alloy, made into several strands and possibly reinforced with steel strands.
Copper was sometimes used for overhead transmission but aluminium is lower in weight for only
marginally reduced performance, and much lower in cost. Overhead conductors are a commodity
supplied by several companies worldwide. Improved conductor material and shapes are regularly
used to allow increased capacity and modernize transmission circuits. Conductor sizes range from
12 mm2 (#6 American wire gauge) to 750 mm2 (1,590,000 circular mils area), with varying
resistance and current–carrying capacity. Thicker wires would lead to a relatively small increase in
capacity due to the skin effect, that causes most of the current to flow close to the surface of the
wire.
Today, transmission–level voltages are usually considered to be 110 kV and above. Lower voltages
such as 66 kV and 33 kV are usually considered

Electricity and Magnetism
Electricity and Magnetism
History
Electromagnetism
Originally electricity and magnetism were thought of as two separate forces. This view changed,
however, with the publication of James Clerk Maxwell's 1873Treatise on Electricity and Magnetism
in which the interactions of positive and negative charges were shown to be regulated by one force.
There are four main effects resulting from these interactions, all of which have been clearly
demonstrated by experiments: 1. Electric charges attract or repel one another with a force inversely
proportional to the square of the distance between them: unlike charges attract, like ones repel. 2.
Magnetic poles (or states of polarization at individual points) attract or repel one another in a ...
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Figure 2: Electric field lines of a positive charge
Power and Magnetic Fields
An electricity and magnetism phenomenon apparently unrelated to power are electrical magnetic
fields. We are familiar with these forces through the interaction of compasses with the earth's
magnetic field, or through fridge magnets or magnets on children's toys. Magnetic forces are
explained in terms very similar to those used for electric forces: * There are two types of magnetic
poles, conventionally called North and South * Like poles repel, and opposite poles attract
However, this attraction differs from electric power in one important aspect: * Unlike electric
charges, magnetic poles always occur in North–South pairs; there are nomagnetic monopoles.
Later on we will see at the atomic level why this is so.
As in the case of electric charges, it is convenient to introduce the concept of a magnetic field in
describing the action of magnetic forces. Magnetic field lines for a bar magnet are pictured below.
Figure 3: Magnetic field lines of a bar magnet
One can interpret these lines as indicating the direction that a compass needle will point if placed at
that position.
The strength of magnetic fields is measured in units of Teslas (T). One tesla is actually a relatively
strong field – the earth's magnetic field is of the order of 0.0001 T.
Magnetic Forces On Moving Charges
One basic feature is that, in the vicinity of

Essay about Btec L3
1. Describe the basic features of electricity at a fundamental level.
Ans: Electricity is the movement of electrons. As long as electrons in an atom are balance and
revolve precisely in orbit around their sun or atom nucleus there is no electron flow or electric
current in a wire. These atoms are the smallest particle into which an element can be divided
without losing its property. A single atom consists of three basic components: a Proton, a Neutron
and an Electron. An atom is similar to a small solar system, so is the nucleus in the centre of an
atom. Protons and neutrons are contained within the nucleus. Electrons orbit around the nucleus
which could be similar to planets orbiting around the sun. As an electrician I will also be ... Show
more content on Helpwriting.net ...
Direct current may be obtained from alternating current supply by use of a current switching
arrangement called rectifier, which contains electronic elements or electromechanical elements that
allow current to flow only in one direction. DC maybe made into alternating current with an inverter
or a motor generator set. DC is commonly found in many low–voltage applications especially where
these are powered by batteries, which can produce only Direct current or solar power systems, since
solar cells can produce only DC. Most automotive applications use DC although the alternator is an
AC device which uses a rectifier to produce DC. Many telephones connect to a twisted pair of
wires, and internally separate the AC component of the voltage between the two wires (the audio
signal) from the DC component of the voltage between the two wires caused to power the phone.
Although DC stands for "direct current", DC often refers to "constant polarity". Under this
definition, DC often voltages can vary in time, as seen in the raw output of a rectifier or the
fluctuating voice signal on a telephone.
5. Explain the effect of resistance in circuits.
Ans: Resistance is the hindrance to the flow of charge. An electron traveling through the wires and
loads of the external circuit encounter resistance for an electron, the journey from terminal to
terminal is not a direct

Unit 3 the Characteristics of Electricity ( Pg 296 ) Day 1...
Unit 3 The Characteristics of Electricity ( pg 296 ) Day 1 Electrostatics – study of static electricity
Neutral objects – materials that do not carry a charge Conductors allow charges (electrons) to flow
through them easily. E.g. metal Therefore no matter how hard that you rub a metal tap no static
charge will build up because the electrons that you are giving the tap just keep on moving up the tap
and down the water line until they reach a ground. Insulators do not allow charges to flow through
them. The charge builds up on its surface eg. Faraday Cage Both a positive and a negative charge
can build up on ____________________ Only ______________ can obtain a static charge.
Conductors, Insulators and in – between (pg ... Show more content on Helpwriting.net ...
Charging by contact (Friction) pg 302 When two objects made of different materials rub together,
electrons can be transferred from one object to the other. This is because different atoms (which
make up the objects) have a different ability to attract electrons and a different ability to hold onto
their own electrons. The Electrostatic Series –a list of common materials showing how their ability
to hold onto their electrons compares acetate Weak hold on electrons Strong hold on electrons glass
wool fur, hair calcium, magnesium, lead silk aluminum, zinc cotton paraffin wax ebonite
polyethelene (plastic) carbon, copper, nickel rubber sulphur platinum, gold To determine what
charges will form, compare the location on the table of the two objects. The object that is higher on
the table will lose electrons and become positive Eg. when cotton and human hair rub what charge
will form on each object? ___________ is lower on the list than ___________. __________ will
hold its electrons better. ____________ will lose its electrons to the ________________Cotton will
become ___________. Hair will become ________________Consider the following pairs are
rubbed together. Give charge on each : Plastic ________ Silk _______; Fur __________ Rubber ;
glass ____ silk ______ Vinyl ______ Plastic ______ ; Ebonite _________ wool _____________
Questions 1.

Static Electricity In Atlanta
The chilly winter months in Atlanta can give you a sudden jolt... literally. This is because of the
increase in the production of static electricity during the winter months due to the absence of
moisture in the air as compared to the summer and monsoon seasons. With static electricity being
omnipresent in our hair, clothes, and also on our doorknobs, it is no surprise that Atlanta electricians
receive a large number of calls asking them for ways and means to eliminate static electricity. The
clothes sticking to your body and the standing hair after a removing your woolen skull cap are
nothing but signs of static electricity. Static electricity is the accumulation of negatively and
positively charged electrons on the surface of materials that

Do Hair Colors Have Different Effects On Static Electricity
Designing your own experiment
1. Make an observation: When a balloon is rubbed on someone's head the hair on the person's head
will stand up, and if the balloon is later placed on a wall it will remain there for a certain amount of
time.
2. Ask a question: Do different hair colors have different effects on static electricity?
3. Prediction: The color of hair will have different effects on static electricity, one color of hair will
produce the highest amount of static electricity.
4. Hypothesis: If you have black hair then there will be a higher effect on static electricity then there
would be on blonde, red, or brown hair.
5. Write up your experiment:
Materials: 4 latex balloons, 1 permanent marker, 1 clear wall space, 1 notebook, 1 black haired
volunteer, 1 red haired ... Show more content on Helpwriting.net ...
Fill up a total of 4 latex balloons with air by using your breath.
b. Once you have filled up each balloon make sure to tie each one with a secure knot at the end.
c. Now take a permanent marker and carefully take 1 of the 4 balloons and write black on it, take a
second balloon and write blonde, then a third and write red on it and on the last balloon write
brown. (You will only be doing 1 trail for each color of hair).
d. In your notebook, create a table with 2 columns and 5 rows the left column will be used for the 4
different colors of hair
(Black, blonde, red, brown) and the second column will be labeled as time. This will be where you
will write how long each balloon stuck to wall for each hair color.
e. Take one of the balloons marked black and on your black haired volunteer rub the balloon on
his/her head 30 seconds (make sure to use a timer).
f. Once you have finished rubbing the balloon for the designated time on your volunteer's head the
hair will be standing up. You will then take the balloon and stick it to a clear wall space. Now take
your timer and time how long the balloon stays on the wall, once the balloon begins to fall off the
wall stop your

The Power Of Magnetism And Electricity Since Ancient Times
Introduction:
Mankind has been aware of the presence of magnetism and electricity since ancient times.
Prehistoric man observed instances of lightning and static electricity, as well even creating a
primitive version of the compass. Magnetism wasn't officially discovered until the late 16th
Century, and it would be even longer until scientists learn to wield electricity for demonstrations in
the 18th Century. Now, three–hundred years later, we are combining these two forces to enhance
transportation across the globe. From underground subway systems, all electric cars and even hover
cars, electromagnetism has revolutionized the way we get around.
Once the concepts of electricity and magnetism were grasped, it did not take long for automobile
manufacturers to begin to use electricity and magnetism to improve their products. Before the starter
motor was implemented, engines had to be manually primed by the use of a hand–crank. Not only
was this a bothersome inconvenience to automobile owners, but it was dangerous as well. Any
number of injuries could be sustained from a back–firing engine. As engines became larger and
more powerful, it also became more physically demanding to start them, making it almost
impossible for those with any sort of handicap to operate without assistance.
History:
In 1896, in East Peckham, England, H.J. Dowsing installed the first electric starter on an Arnold,
and the idea soon spread to the United States. Cadillac released self–starting models in

How To Dissect The Human Body?
The late eighteenth and early nineteenth centuries in Europe were an explosion of modern
advancement as the Industrial Revolution took hold. The development of large industrialized cities
brought about a change in attitude regarding progress that allowed modern scientists to look further
into nature for solutions to everyday qualms. At the forefront of the innovational age was the
discovery of electricity and the beginning of its experimentation for both practical and scientific
purposes. Concepts similar to electricity had been debated in ancient societies, however the human
mind was never able to capture it until the beginning of the nineteenth century. Experimentation
with electricity caused controversy throughout Europe as results came ... Show more content on
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Soon after Galvani published his findings in 1891 Alessandro Volta proposed that the "'animal' part
of Galvani's animal electricity was not needed" (Alessandro n.pag). Volta instead believed in what
he called metallic electricity. He alleged that all that was need to generate electricity was any moist
material between two different metals (Voltaic n.pag). However, by this time Galvani's theory held
wide acceptance due to public demonstrations. To support his claims, in 1800, Volta built what is
now known as the voltaic pile, which would come to be known as the first electric battery (Montillo
56). The voltaic pile used the natural transfer of electrons between two metallic elements to
establish an electric current that could be directed through a wire. With the help of his voltaic pile,
Volta successfully disproved Galvani's theory of animal electricity (Parent 578). Scientists of the
time began to use the voltaic pile as a source of electricity for experimentation with galvanism soon
after its

Analysis Of Ben Franklin And The Middle Of The Storm
Electronics and electricity have come a long way since they were first being discovered. That is not
to say that what was originally thought is now wrong or obsolete, but rather has been added to or
has been more refined. When most people think of electricity what comes to mind is Ben Franklin
with his kite and a key in the middle of the storm. However, that is only one completely minor detail
which led to the discovery and the ability to harness and use what was already happening in nature.
Only on a scale that could be used by an everyday person. Although it is something we all use every
day, most people do not really know who or what has been done in the field of electronics and
electricity. Most just take for granted the fact ... Show more content on Helpwriting.net ...
A galvanic cell is an electrochemical cell that derives electrical energy from spontaneous redox
reactions taking place within the cell. Although it is not certain whether the artifact was electrical in
nature or used for some other use that was needed within the culture (Britannica, 2014). The history
of electricity had little if any advancement for many years since the time of Thales. In fact it was
nothing more than thought and curiosity until the 1600's. It was at this point English scientist
"William Gilbert made a careful study of electricity and magnetism, distinguishing the lodestone
effect from static electricity produced by rubbing amber. He later coined the new Latin word
electricus meaning ("of Amber" or "like Amber")" (Stewart 2001). We skip ahead another century to
the times of such great minds as Otto von Guericke, Robert Boyle, Stephen Gray, C. F. du Fay, and
Benjamin Franklin. Franklin conducted extensive studies and performed hundreds of experiments.
He even went as far as to sell off many of his own possessions in order to fund his work. Meanwhile
it was in of June 1752 that he has been reputed to have attached a metal key to the bottom of a
dampened kite string and had flown the kite in a storm threatened sky (Srodes, James, 2002). By
doing so he had sparks jumping from the key into the back of his hand, he had thus proved that

Electricity And Its Effects On Our Lives
Most people in this world use electricity in their daily lives and surely most of them would not
survive in a world where there was none. In other words, to most people electricity is vital to daily
living. It is essential because it allows us to do things in faster and more effectively. Personally, I
cannot imagine living on this planet and not having a computer, a television, a radio, a stove, etc.
Without all of these tools daily tasks as simple as cooking a meal would be much harder and would
most likely not taste as good because it would have to be cooked on top of a fire. If electricity did
not exist we would also not be able to see during the night time unless we had a candle or fire stick,
which would not last too long and would not light very far. To most people electricity provides with
a form of communication with their loved ones. For example, some people use Skype on their
computer, and in this process of communication electricity is used. If this technology did not exist
people would not be aware or in contact with their relatives and friends that are not near them.
Electricity is also the main reason out houses are powered up and we are able to see clearly at night.
For these reasons, it's likely that most people are grateful to have electricity in their lives.
Although it may seem like a simple topic it is in fact the opposite. The history of electricity goes
way back and has many contributors that helped to generate the technology we have today, that we

The Origin And Discoveries Of Electricity And Magnetism
This paper is mainly about the origin and discoveries of electricity and magnetism. It is solely a
summary of two natural phenomenon which have changed everything about our way of life and has
ushered us into a remarkable new age.
Firstly and most importantly, it is about the underlying idea of how magnetism and electricity have
come about, also it outlines and maps out the development and discoveries of sources of electricity
and magnetism by many inventors and the latter discoveries of mega–production.
When I was a little boy, I used to wonder what causes lightning and thunder. When rain comes, I
sometimes see intermittent lightning for a while before you can hear the sound of a spark which is
like two short–circuited power cables.
At school, we all learnt about matter, which consists of atoms and molecules and every atom has a
nucleus and electron(s), inside the nucleus contains an equal number of protons and neutrons. The
electrons revolve round the nucleus of the atom in order to keep it stable. Protons are positively
charged particles, neutrons are neutral and electrons are negative charge particles. The nucleus is
surrounded by shells; these are simply orbitals in which an electron(s) can be found. The number of
orbitals depends on how many electrons the atom has. The electrons which are in the outer most
orbitals have a tendency of being lost or shared by another atom in order to create a more stable
configuration.
Long before any knowledge of electricity existed

Did Benjamin Franklin Discover Electricity
Since electricity is a natural force it didn't have to be invented. It did have to be discovered and
understood. Most people give credit to Benjamin Franklin for discovering electricity from his
experiment when storm clouds transferred to the kite and electricity flowed down the string and
gave him a shock. He's lucky that he didn't get hurt, but he didn't mind the shock since it proved his
idea. But was Benjamin Franklin really the first person to discover electricity? Maybe not! At the
turn of the 17th century, English scientist William Gilbert established the science underlying the
study of electricity and magnetism. Inspired by Gilbert's work, another Englishman, Sir Thomas
Browne, made further investigations and wrote books about his

Electricity In The Bell Jar By Sylvia Plath
Electricity in The Bell Jar by Sylvia Plath signifies Esther's evolving condition; it describes both a
domineering and destructive force that she imagines from the beginning of the novel, and
experiences later in the form of electroshock, but it also describes her sexual awakening and
development as someone capable of adult intimacy. These two forms of electricity are radically
different, yet both relate to powerful moments in Esther's life as a young adult. While electricity in
the form of electrocution and electroshock becomes associated with punishment and a loss of
control over oneself, static electricity marks Esther's transition from an almost childlike idea of
romance, absent of sexual intimacy, to an adult who embraces that sexual intimacy as part of love.
In the first paragraph, the novel refers to electricity and connects it to events that are public and
associate with punishment, which Esther then quickly personalizes and relates to her own disgust,
horror, and some subtle indication of attraction. The novel opens with the description of how, "It
was a queer, sultry summer, the summer they electrocuted the Rosenbergs, and I didn't know what I
was doing in New York" (XX). The first siting of electricity comes in relation the infamous
"Rosenbergs," and therefore associates electrocution with punishment and treason. Moreover, the
act of electrocution is monumental, such that it marks not simply a particular moment or event, but
an entire summer. It is therefore

Disappointing Tragedy Of Suicide Squad
Disappointing Tragedy in Suicide Squad
Suicide Squad (2016) is a comic book based movie that was announced late 2014 with the
expectation of being a thrilling film. David Ayer, the director of Suicide Squad, has many years of
experience working on action based movies. Some familiar movies that he directed are: The Fast
and the Furious (2001), S.W.A.T (2003), and Fury (2014). Some of these films received double the
ratings Suicide Squad obtained. In spite of Ayer's professional history, he failed to make an
appealing movie. The Unorganized editing, negligent lovers story, and incorrect character portrayal,
are just some reasons Suicide Squad received low ratings from many trustworthy movie critics.
In summary, Some of the most dangerous criminals that have been placed in death row get an
opportunity to shed years off their life sentences if they accept to work secretly for the government
as disposable assets. Five criminals and two volunteer heroes must work together to save the world
from supernatural villains threatening to destroy the world. The group of villains given the name
Suicide Squad are controlled by Amanda Waller a ruthless government official that runs a prison
facility called Belle Reve. A nano bomb is implanted into the criminal's necks; the bomb can be
detonated at any instance of attempted insubordination. The task force is placed under command of
Rick Flag an elite soldier with a thirst for justice. During a government mission, Rick Flag's
girlfriend Dr.

Advantages And Disadvantages Of Energy
Electricity would undoubtedly be the most important discovery in the history of mankind. Its
capacity to have great effects on various human activities and its influence on human technology
and cultures make this the best discovery. Electricity is a fundamental form of energy observable in
positive and negative forms that occurs naturally or is produced and that is expressed in terms of the
movement and interaction of electrons (Merriam–Webster).
The discovery of electricity dates back to about 600 BC, during the times of Ancient Greeks. Static
electricity was first discovered when the people during that era rubbed fur on amber to create
energy. There are common misunderstandings of when electricity was first discovered. People
believe that ... Show more content on Helpwriting.net ...
Although all nations vary in its percentage, households and the commercial sector is a good guide
for developed countries. Average household electricity use does vary between countries, but looking
at the US, the average American home uses 11,700 kWh each year, causing about 7 t CO2e in
carbon emissions. It seems like air conditioning, lighting, water heating, refrigeration, and medias
are the major sources that require electricity. Countries with hot season a whole year out tend to use
more energy on air conditioning and clothes washers than colder places. Climates, and environments
tend to vary the uses of electricity in

The Cultural Impact Of Electricity And The World We Live
In today's world nothing is more important than the gadgets we use on a every day to day basis.
What we take for granted sometimes is the thing we use most and most importantly we use to
charge everything most of the time is some type of electricity. I hope to provide a clear and concise
paper that details and gives the cultural impact of electricity and the world we live. This paper will
hit on three topics reconstruction to the beginning of where man first began to harness electricity,
how man used this electricity to change the course of history as we know it, and the positives as
well as the negatives of electricity and the world we live in.
Electricity is a form of energy involving the flow of electrons. All matter is made up of atoms, and
an atom has a center, called a nucleus. The nucleus contains positively charged particles called
protons and uncharged particles called neutrons (Joseph, 2002)The nucleus of an atom is surrounded
by negatively charged particles called electrons. The negative charge of an electron is equal to the
positive charge of a proton, and the number of electrons in an atom is usually equal to the number of
protons (Joseph, 2002).When the balancing force between protons and electrons is upset by an
outside force, an atom may gain or lose an electron. When electrons are "lost" from an atom, the
free movement of these electrons constitutes an electric current (Joseph, 2002). To understand
electricity one must know that it is not an invention but a

An Article On Lightning Strikes
While reading an article in the National Geographic magazine, I then learned about lightning strikes.
When lightning strikes it produces hundreds of millions of volts this is more electricity that could be
produced by all U.S. generators combined during that instant. However, since the flash of the
lightning is so brief that the electric energy that it strikes would only power a light bulb for about a
month. As a thundercloud fills with air, rising ice crystals collide with falling hailstones. The ice is
then strjpped by the hail strips. The top of the cloud becomes predominantly positive and the bottom
mostly negative, with scattered positive areas at its base. The negative charges in the lower cloud
induce a positive region. Static ... Show more content on Helpwriting.net ...
There are many physical traits that differ from humans to squids. First of being, one of the cockeyed
squid 's eyes is bulging, big, and yellow. However, the other is flat and beady. A question that is
constantly brought up, why is there a difference between the two eyes? In order for people to be able
to truly see what these squids look like, an institution MBARI have been dropping robotic
submarines down to see this cockeyed squid in action. Katie Thomas found in one of the footages
that the squid swims with its left eye angle upward and their tiny right eye angled downwards. There
was another physical difference the left eye was big and bulging, as well as, yellow. Although the
younger squids did not have the yellow color in their eye. Humans eyes carry pigment in the iris.
The squid eye differs in that their yellow pigment is right in the lens. These squids do not have
corneas, so instead the lens stick directly out of the eye. The lens of the smaller eye is "perfectly
clear." An interesting fact that I learned was the yellow lenses may help the squid see prey
swimming overhead. Some animals have some sort of camouflage, but the yellow lenses can help
predators help see through that camouflage. Also, an upward allows the squid to scan for prey that
light up to camouflage themselves against the sunlight. The beady, downward facing eye allows for
the squid to see creatures lighting up in the darkness. If

Causes Of Thunderstorms
THUNDERSTORMS–Mother Natures unhealthiest weather condition!
How Thunderstorms affects the human body
A thunderstorm is only considered a thunderstorm when lightning is present.
These storms can play an important role in physical pain and mental suffering.
Lightning is made from cold air and warm air inside a cloud that meets. The warm air has water
droplets that goes to the top of the cloud and the cold air has ice crystals goes to the bottom of the
cloud. When a storm forms the droplets and crystals hit each other and it separates the air and the
two parts hitting each other makes a static electrical charge in the cloud and forms a lightning bolt.
Thunder; one following the other. Thunder is air pressure that expands and contracts quickly in a
cloud by lightning. When the air gets heated it makes the sound of thunder.
10 UNHEALTHIEST FACTS ABOUT THUNDERSTORMS YOU DONT WANT TO
EXPERIENCE!
It's deadly and if you get struck by lightning there is always some permanent damage to the body!
1. Static electricity–We all know that if you rub a negative atom to a positive together you get static
electricity and you get shocked, such as rubbing your hand back and forth on a rug. Watch it!
Anything you touch you will get shocked!
Lightning is considered static electricity in a thunderstorm. When the heat and cold meet it causes a
static electricity spark, as it is a positive and negative charge meeting each other.
So, how will you know if a lightning strike is near you? The hair

Nikola Tesla Research Paper
Hi! I'm Nikola Tesla, I was born in July 10, 1856. I was born in Smiljan, Croatia during a lightning
storm. When I found out about electricity I was petting my cat and some static shocked me, I was
curious if i could go beyond static electricity, and make amazing things using electricity. I wanted to
create things that would be helpful for the world. I thought that tv's were too boring to walk up to it
and press a button, So, I made a remote control so that I don't have to get up. I made a lot of other
inventions, but there was a fire and a lot of my work was destroyed. I created many electric things,
like neon lamps. A few inventions later and I put some patents on them. In 1981, I patented my
Tesla coil. I thought of the idea for smartphones.

Why I Choose Michael Faraday 114
Why I Chose Michael Faraday 114 When I was given free rein on a topic for research, the first
things that came to mind were certainly not science related. But as I discussed my Electricity and
Magnetism book with my mom, I was having trouble understanding the concepts of static electricity
and electric circuits. But eventually, I realized that not only did I want to understand these topics,
but I really wanted to know more about some of these great scientists. Looking into the topic of
famous scientists who discovered electricity or magnetism, I found that there was not one specific
person who had done that. It was a chain of amazing scientists, all following one another's work to
invent or discover something else. Some of them

The Age Determination Of Latent Prints
The amount of information that can be obtained through someone's hands is astounding. One can
determine the years of scarring from hard work, or the blisters from misuse. The most information
can be obtained at the very tips of fingers, and what they leave behind. Fingerprints supply great
evidence to help identify who was there, and possibly how many people were there. However, the
problem becomes that there are too many prints found at one scene. It is difficult to try and
determine when they were made based on physical appearance and common techniques. Nowadays,
the age determination of latent prints can be achieved with a new approach using the sweaty residue
of latent prints, and a small electrical charge. In 2011, a group from ... Show more content on
Helpwriting.net ...
In a laboratory setting, they set up multiple stations where they had placed two fingerprints from the
same people, at different times. The results of the experiment showed that after 14 days of being left
alone, the prints left behind on nonconductive surfaces showed significant electric decay. They were
then able to determine which print was placed earlier, and which later (Watson, Prance,
Beardsmore–Rust, & Prance, 2011). The scanner works on the residue left behind in the latent
prints, which is mainly the different forms of sweat. Sweat by itself is a combination of organic
molecules, lipids, amino acids, and inorganic free ions (Yamashita & French, n.d.). These free ions
act as an electrolyte solution, and allow electrical currents to be passed through, and returned to the
original source to complete the current. By measuring where the current is completed, the scanner
can construct a digital image of what the print would look like. The scanner's released charge must
be small enough to have a reaction from the latent residue, but it cannot be too large as to have a
reaction from the surface in question. Although the scanner works in a laboratory setting, there are
still many problems that need to be addressed before it can be applied to the field. The first is that
the testing surface needs to be nonconductive. The main reason for a nonconductive surface is that
the charge

The Pros And Cons Of Photocopiers
The 21st century has in many ways been defined as the century of innovation, especially in the
emergent field of technology, and science has been an essential contributor to this. Electricity has
been an important factor to invention. Static electricity is a form of electricity that has enabled the
creation of printers, spray paint, pollutant removers and photocopiers. In this essay, I will discuss
static electricity, photocopiers, and how they play a role in the speed of mass–production. I will also
illustrate the photocopier's advantages and disadvantages, and its implication for society.
The well –known phrase "opposites attract" is derived from physics and polarity. Everything that
surrounds us is made of atoms, which are composed of ... Show more content on Helpwriting.net ...
Photocopiers entertain built–in hard drives that are comprised of confidential project information.
Even if one gets a private area to copy confidential documents, the documents remain stored in the
photocopier (fig 6). Therefore it is necessary to decommission the copier and clear the hard drive
before someone else uses it, so that the previous information cannot be accessed .
Photocopiers play a role, even if indirectly, in impacting the environment. We are increasingly living
in an era of pollution and scarcity of fundamental resources. One of these important and overused
resources are trees. The paper making process places burden on some of our most important natural
resources, as the production of paper uses large amounts of energy and water. The photocopying
process also uses chemicals, such as chlorine, , which can cause damage to the environment. In
addition, The United Nations Environment Programed (UNEP), has stated that paper in landfills can
produce toxic greenhouse gases such as methane, which traps up to 21 times more heat than carbon
dioxide . To reduce some of this negative impact, double–sided printing was introduced; it
consumes less paper and waste, double–sided printing is more environmentally friendly and
economically sound. It also speeds up the mass–producing

Communication And Communication : The Comportance Of...
The need to communicate has driven much development in human history, and the need to
communicate over distances too great to shout over has been just as important. From smoke signals
to semaphore, from signposts to sending letters via messenger, we have discovered faster and more
effective means of communicating. Still, it became more and more necessary to communicate
instantly. Early Telecommunications included smoke signals and drums. Talking drums were used
by natives in Africa, New Guinea and South America, and Smoke Signals in North and South
America and China. Tomkins(2005){1} In Rabbinical Judaism a signal was given by means of
Kerchiefs or flags at intervals along the way back to the high priest to indicate the goat "for Azazel"
had been pushed from the cliff. Talking Drums (2006){2} The Greeks in the 4th century BC
developed the first Hydraulic Telegraph which was deployed in combination with Semaphoric fires.
The British developed the second Hydraulic telegraph in the 19th century AD. The British system
operated solely by Hydraulic fluid pressure. Although both systems employed water in their sending
and receiver devices, their transmission media were completely different. The ancient Greek system
transmitted its semaphoric information to the receiver visually, which limited its use to line–of–sight
distances in good visibility weather conditions only. The 19th century British system used water–
filled pipes to effect changes to the water level in the receiver

The Origin Of Electricity And Magnetism
The Origin of Electricity and Magnetism
This paper is mainly about the origin and discoveries of electricity and magnetism. It is solely a
summary of two natural phenomenon which have changed everything about our way of life and has
ushered us into a remarkable new age.
First and foremost, it is about the fundamental idea of how electricity and magnetism came about,
then, the development and discoveries of sources of electricity and magnetism by many inventors
and the latter discoveries of mega–production.
When I was a little boy, I used to wonder what causes lightning and thunder. When rain comes, I
sometimes see intermittent lightning for a while before you can hear the sound of a spark which is
like two short–circuited power cables.
At school, we all learnt about matter, which consists of atoms and molecules and every atom has a
nucleus and electron(s), inside the nucleus contains an equal number of protons and neutrons. The
electrons revolve round the nucleus of the atom in order to keep it stable. Protons are positively
charged particles, neutrons are neutral and electrons are negative charge particles. The nucleus is
surrounded by shells; these are simply orbitals in which an electron(s) can be found. The number of
orbitals depends on how many electrons the atom has. The electrons which are in the outer most
orbitals have a tendency of being lost or shared by another atom in order to create a more stable
configuration.
Long before any knowledge of electricity

Electrical Grounding Best Practices : Electrical Systems...
Electrical grounding best practices
A good grounding system should provide the maximum safety from contact, electrical system faults
and lightening. For a grounding system to perform efficiently over long periods of time, it should be
designed and installed properly using reliable materials and proven techniques.
Grounding is important for three main reasons;
Safety to people
Protection of equipment and building which may come into contact with the live wires or systems.
Electrical noise reduction
The electrical ground provides a current return path to the earth mass. The earth is usually
considered to be an electrically neutral body with equal number of positive and negative charges
which are distributed *** throughout the earth and any given time.**** RD
The effectiveness of the grounding system depends on the individual components. Some of the
factors to consider include
The grounding conductors : that connects noncurrent carrying metal parts to raceways, enclosures,
etc
Grounding electrodes
Grounding Connectors
Type of the soil and environment Components of a building grounding system
The building grounding system consists of
The exterior grounds
The electrical service ground
Building interior grounding
Equipment grounding and bonding
Lightening protection
Basic grounding practices
The electrical service ground – Ground bus
Installation has a bus bar which provides a single point ground. This is usually a heavy copper bar or
wire of low

How Did Benjamin Franklin Use Electricity
Obviously without electricity, you wouldn't be able to enjoy your daily explorations of the Day!
What a horrible thought! But don't worry. Electricity does exist and it allows us to enjoy life in so
many ways. Since electricity is a natural force that exists in our world, it didn't have to be invented.
It did, however, have to be discovered and understood. Most people give credit to Benjamin
Franklin for discovering electricity. Benjamin Franklin had one of the greatest scientific minds of
his time. He was interested in many areas of science, made many discoveries, and invented many
things, including bifocal glasses. In the mid–1700s, he became interested in electricity. Up until that
time, scientists had mainly known about and experimented with static ... Show more content on
Helpwriting.net ...
In order to show that lightning was electricity, he flew a kite during a thunderstorm. He tied a metal
key to the kite string to conduct the electricity. Just as he thought, electricity from the storm clouds
transferred to the kite and electricity flowed down the string and gave him a flutter. He's lucky that
he didn't get hurt, but he didn't mind the shock since it proved his idea. Building upon Franklin's
work, many other scientists studied electricity and began to understand more about how it works.
For example, in 1879, Thomas Edison invented the electric light bulb and our world has been
brighter ever since! But was Benjamin Franklin really the first person to discover electricity? Maybe
not! At the turn of the 17th century, English scientist William Gilbert established the science
underlying the study of electricity and magnetism. Inspired by Gilbert's work, another Englishman,
Sir Thomas Browne, made further investigations and wrote books about his findings. Gilbert and
Browne are given credit with being the first scientists to use the term "electricity." Scientists have
found evidence that ancient peoples may have experimented with electricity,

Textile Science Chapter 2 Hw
Textile science Chapter 2 hw 1. State the fiber property that most affects the indicated condition:
a. Pilling propensity pilling = hydrophobic & strength & static electricity
b. Producing permanent pleats. pleats = resiliency & thermoplasticity
c. Improving insulation. Scientists model the manner in which a liquid wets fibers, gaining useful
insights for improving glass wool properties. Sandcastles are a prime example of how adding a
small amount of liquid to a granular material changes its characteristics
d. Resistance to wear from rubbing abrasion resistance
e. Static buildup. hydrophobic fibers
f. Determination of "hand." Hand" is the way a Fiber feels. Some terms used to describe the ... Show
more content on Helpwriting.net ...
On the other hand, polyester is a manmade Fiber so you have more creativity with it. ´hey can be
engineered a certain way with a specific end use. Many chemicals are involved
5. What is crimp? How does it affect the properties of a textile? Crimp is the bends and twists along
the length of a fiber.
It increases resiliency, bulk, warmth, elongation, absorbency, and skin comfort. Makes the hand
harsher and luster is reduced as crimp increase. Allows the fiber to stand off the skin so fabric will
not cling to the wearer 's skin. Also helps make the fiber able to withstand being bent back on itself
many times without breaking.
6. How does fiber absorbency affect the properties of a textile? Absorbency affects: skin comfort,
static build–up, dimensional stability in water, stain removal, water repellency, and wrinkle
recovery.
7. What is pilling? Why is it more apparent on some fibers than on others? Pilling is the formation
of groups of short or broken fibers on the surface of a fabric that are tangled together into tiny balls
(pills).
More apparent on hydrophobic fibers because their fibers have greater electrical static attraction for
each other ran do not fall off the fabric surface. Wool also pills because it has a scaly surface. 8.
Which fiber would be more suitable for athletic wear–one that wicks or one that absorbs moisture?
Why? Wicking fibers are more suitable for athletic wear because

Electricity in Our Lives
UNIVERSITY „VALAHIA" OF TÂRGOVIŞTE FACULTY OF ELECTRICAL ENGINEERING
ELECTRONIC AND TELECOMMUNICATION DOMAINE
PAPER FOR THE ENGLISH COURSE
"Electricity in our lives"
Made by Student Pană Nicolae Alexandru 2nd year, group nr. 2
TÂRGOVIŞTE
2010
List of contents
1. Introduction 3
2. Short History 3
3. Definition 4
4. Electricity sources 4
5. Current Electricity 7
6. Electromagnetism 8
7. Uses of electricity 9
8. Generating Stations 10
1. Introduction
Electricity means all the phenomena that result from the interaction of electrical charges. Electric
and magnetic effects are caused by ... Show more content on Helpwriting.net ...
These include many easily recognizable phenomena, such as lightning and static electricity, but in
addition, less familiar concepts, such as the electromagnetic field and electromagnetic induction.
4. Electricity sources
People have been trying to solve the electricity issue when faced with an acute shortage of
electricity, so every country wants to increase power production in all possible ways. The most
prolific source of electric energy are the nuclear power plants, but the risk of a catastrophic event,
such as Chernobyl in 1986, makes people think twice before accepting this kind of energy source.

Of course there are other ways of acquiring electrical energy, called alternative sources of energy.
Wind energy, solar energy, sea waves energy are the latest resources, but the technology for them is
still developing so they can be used only in a few countries. There are many reasons we are looking
towards alternative energy sources. With many countries, and US cities, signing the Kyoto Treaty,
efforts to reduce pollutants and greenhouse gases are a primary focus in today's culture. Alternative,
or renewable energy, sources show significant promise in helping to reduce the amount of toxins
that are by–products of energy use. Not only do they protect against harmful by–products, but using
alternative energy helps to preserve many of the natural resources that we

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