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Electricity – History and Affection
Hee Joong KimSunghun JunSaebom KimSeung Jae You
Definition of Electricity
Electricity is the movement of electrons between the atoms that are either posi-tively or negatively charged. An atom that loses electrons has positive
charge An atom that gains electrons have negative
charge
Also defined as a variety of phenomena resulting from the presence and flow of electric charge
Discovery of Electricity
Thales of Miletus (630-550 BC) The first to acknowledge that the amber stone
when rubbed produces an attraction force over some object
William Gilbert (17th century) Studied phenomena of electricity and magnetism,
and distinguished between the electric effect of amber and magnetic effect of lodestone
Gave name ‘electricus’ to the phenomena of at-traction shown by amber▪ Rise to the modern word of electricity
Cont.
Benjamin Franklin (18th century) Known as the father of electricity
Kite experiment Performed experiment of flying a kite
during a thunderstorm Discovered that lightning and electricity
were somehow related
Cont.
Alessandro Volta Constructed the first device to produce a
steady electricity, voltaic pile (electric bat-tery).▪ Positive and negative charged connectors created
transmission of electricity.
Michael Faraday Created the electric dynamo, a precursor of
modern power generators Opened the door to the new era of electricity
Nikola Tesla Developed the first actual power system Developed florescent lights and publi-
cally used it prior to Ericson’s invention of the incandescent light
Types of Electricity
Static Electricity A condition that exists when electrons
are displaced and remain Usually result of friction, such as light-
ning bulb
Current Electricity A constant flow of electrons from atom
to atom
Life Before Electricity
Historic View Perceived electricity as the power of the
Gods Ex: Certain species of eels and rays,
possess the defensive power to generate electric shocks and ancient people thought these shocks could cure headache or gout.▪ They did not, however, use the term ‘electric-
ity’ for what they were experiencing.
Cont.
Housing System Enlighten rooms with kerosene lamps in-
stead of stands or incandescent lights, and heated up the rooms with wood or coal stoves instead of electric heater.
Transportation Transportations such as car and train could
not be produced due to lack of electricity. People had to travel by walk or carriage.
Cont.
Telecommunication Used smoke or fire to deliver urgent news or
location
Economy Raised horses and cows for economic activity Increased traveling time by riding carriage or
horse Poor quality of life with lack of technology and
electricity
Types of Electricity Produc-tion
Thermoelectric Power Generator
Hydroelectric Power Generation
Nuclear Power Plants
Thermoelectric Power Gen-erator
1. Power plant gather to heat up water
2. Vapors water3. The water goes
into a big tube that travels to turbine
4. Spins a magnet inside the genera-tor to make elec-tric force
Hydroelectric Power Genera-tion
1. Generated by the force of falling water
2. Water flows through a dam and turns a tur-bine, which turns a generator▪ Turbines contain metal
coils surrounded by magnets that spin over the metal coils, which produces electricity
Nuclear Power Plants
Cont.
Steam power plant that is fueled by a ra-dioactive element such as uranium. 1. The fuel is placed in a reactor and the indi-
vidual atoms are allowed to split apart.2. The splitting process releases great amounts
of energy that is used to heat water until it turns to steam.
3. The mechanics of a steam power plant take over that it pushes on turbines, which force coils of wire to interact with a magnetic field to produce an electricity
Impact on the Society
Entertainment Enable us to watch television, listen radio
and music, and use electric devices such as cell phone and personal computer
Comfort Help housework with washing machine,
vacuum cleaner, microwave, etc. Enable us to read or work at night as
bright as noon time
Cont.
Information System Usage of cell phone or internet with electricity
base enable us to get new information faster than any other time
Ex: Stock market, international telephone ser-vice
Medical Service Enable us to use x-ray, CT scan, MRI, CPR de-
vice etc. Provide better surgery with modern technology
Cont.
Sewage Treatment Remove contaminants from wastewaters and
household sewage with chemical, biological and physical methods based on electricity usage
Industrialization Promoted heavy industries and massive pro-
duction Decreased time cost and labor forces with
developed technology and electricity
Usage of Electricity
Sound The electrical interaction will create a
force that move electrons in and out to-gether, which creates a sound wave
Speed of moving in and out is the fre-quency of the sound, or pitch, and the amount of the cone movement is the amplitude of the sound, or volume
Ex: Speaker
Cont.
Light Electrical energy into the metal flows into
the circuit such as light bulb In circuit, amount energy was delivered
these electrons pass along the filament
Heat The resistance of electrons flowing
through conductors produce heat energy Ex: Electric stove, electric pad, iron
References
http://en.wikipedia.org/wiki/Electricity http://wiki.answers.com/Q/Who_discov
ered_electricity http://www.energyquest.ca.gov/story/c
hapter02.html http://www.scienceandinventions.com/
2010/06/20/who-discovered-electricity/
http://www.eskimo.com/~billb/miscon/curstat.htmlc
http://learningscience.org/psc1clightheatelectricitymagnetism.htm
http://www.geography-site.co.uk/pages/environ/electricity.html
Cont.
http://www.ehow.com/how-does_4621693_electricity-light-up-bulb.html.
http://library.thinkquest.org/5217/produce.htm http://
www.wired.com/science/discoveries/news/2005/07/68074?currentPage=all
http://riversfromeden.wordpress.com/2011/08/18/electricity-in-the-ancient-world/
http://www.duke-energy.com/about-energy/generating-electricity/nuclear-how.asp
http://science.howstuffworks.com/environmental/energy/hydropower-plant1.htm