... batteries and cars. Alternating current is another electrical current that alternates its direction. If there wasn't alternating current there wouldn't be light, computers, and most electrical appliances. Another category in electricity is magnetism. Magnetism is the attraction of objects to a magnet. Magnets work like this. The magnet is attracted to an object if the poles, or ends, of the magnet are ... -metals, like plastic, wood, and clothes, aren't attracted to magnets either. Magnets are helpful to us in moving metals in a junkyard and in operating a car. One very important person ...

• Word Count: 747
• Approx Pages: 3
• Grade Level: High School

... to invent the light bulb, Edison invented a whole system of electric lighting that lasted for hours and days; this included light bulbs, fixtures for the light bulbs, electricity generators, wires to get the electricity from the power station to the homes, and more. The electric light and power industry Edison created provided convenience and more leisure time in people's everyday lives. Electric ... ride on electric elevated and subway trains to go to work everyday. Street lights and traffic signals provide safer streets. In science, the majority of all research equipment depends on el...

• Word Count: 1844
• Approx Pages: 7
• Grade Level: Undergraduate

... was used extensively in the pottery-making process. It was not until 1873 that dynamo capable of prolonged operation was developed, but as early as 1831 Michael Faraday demonstrated how electricity could be mechanically produced. Through the nineteenth century small productive capacity, short transmission lines, and high cost limited the use of electric power. Up to 1900 the only cheap ... that produced by generators making use of falling water in the mountains of southeastern France and northern Italy. Italy, without coal resources soon had electricity in every village north of Rome. E...

• Word Count: 1586
• Approx Pages: 6
• Grade Level: Undergraduate

... the energy released by water. That water falls through a vertical distance and transforms this energy into useful electricity. The falling water is channeled through a turbine, which converts the energy into mechanical power. Hydro-electric power has always been an important part of the worlds electricity supply. During the twentieth century hydro power had a great influence on peoples lives than any other time ... in history. However hydro power still play a major role in making the wonders of electricity a part of everyday life. Hydro power continues to produce twenty-four percent of ...

• Word Count: 297
• Approx Pages: 1
• Grade Level: High School

... cannot imagine but that he was a philanthropic person. Edison, the great inventor, is also a great thinker and a great human. He was occupied with spreading electricity to all the people. The efforts were crowned with success in the year 1883. Sometimes it happens that a certain solution entails a new solution to a ... an answer to a question but you are faced with a new problem resulted from the answer you provided. Running electricity to homes entailed that some kind of device to measure the amount of electricity consumed by customers be invented. The Weberemeter was Edison's solution...

• Word Count: 3039
• Approx Pages: 12
• Grade Level: High School

... in his lifetime. He was also to be responsible for making many of those changes occur. When Edison was born, society still thought of electricity as a novelty, a fad. By the time he died, entire cities were lit by electricity. Much of the credit for that progress goes to Edison. In his lifetime, Edison patented 1,093 inventions, earning him the nickname "The Wizard ... was by fire from candles, kerosene and oil lamps, and coal-gas jets. With the advent of electricity, the advantages of electric lamps for interior lighting over flickering, sooty, open flames were readily apparent, and de...

• Word Count: 500
• Approx Pages: 2
• Grade Level: High School

... by a British chemist Sir Humphry. In 1812 Sir Humphry first demonstrated incandescence from electric current by heating platinum strips in open air using electricity. The first patent for an incandescent lamp was awarded in 1841 to British inventor Frederick de Moleyns, whose lamp used powdered charcoal heated between ... none were commercially successful because the vacuum pumps of the time could not create a vacuum strong enough to protect the wire filaments and because electricity was expensive to use. The lights would produce so much light that it was unpractical for in home use. Ma...

• Word Count: 1125
• Approx Pages: 5
• Grade Level: High School

... by a British chemist Sir Humphry. In 1812 Sir Humphry first demonstrated incandescence from electric current by heating platinum strips in open air using electricity. The first patent for an incandescent lamp was awarded in 1841 to British inventor Frederick de Moleyns, whose lamp used powdered charcoal heated between ... none were commercially successful because the vacuum pumps of the time could not create a vacuum strong enough to protect the wire filaments and because electricity was expensive to use. The lights would produce so much light that it was unpractical for in home use. Ma...

• Word Count: 1062
• Approx Pages: 4
• Grade Level: High School

... until late at night that day, so my cousins came over to sleep. After experiencing the blackout, I noticed that people are very dependant on electricity and that without it, everyone would go crazy. Without electricity is like the end of the world because all factories run on electricity and security systems would be malfunctioning leading to many robberies and crimes. Fortunately we have ... ...

• Word Count: 606
• Approx Pages: 2
• Grade Level: High School

... quickly and more and more people were finding out and it was reaching most all businesses and homes. Edison would soon be required to deliver the electricity to all homes and businesses that needed or wanted electricity. Of course he met everyone's need and did develop a system. This system included genera tiny currents by a central "dynamo," this is a device that turns energy ... into electricity. Edison egested this in 1879 and included parallel circuits, safety fuses, insulation materials and also even copper wire networks (still use copper wire today). In 1884 Edison's first wife di...

• Word Count: 1190
• Approx Pages: 5
• Grade Level: High School

... to come to him. Honorary degrees he tossed into drawers, but his certificate of naturalization was always kept in his office safe" . During the 1890's he experimented with high voltage electricity, therefore, to explore this unknown world, he invented the Tesla coil, which is an instrument that can step out voltages to high voltages at high frequencies that essentially transmit a radio ... be seen in everything from microwave ovens to MX missiles. But more than this, Tesla's life inspires us to believe that anything we can imagine can be accomplished - especially with electricity. At th...

• Word Count: 1197
• Approx Pages: 5

... to come to him. Honorary degrees he tossed into drawers, but his certificate of naturalization was always kept in his office safe" . During the 1890's he experimented with high voltage electricity, therefore, to explore this unknown world, he invented the Tesla coil, which is an instrument that can step out voltages to high voltages at high frequencies that essentially transmit a radio ... be seen in everything from microwave ovens to MX missiles. But more than this, Tesla's life inspires us to believe that anything we can imagine can be accomplished - especially with electricity. At th...

• Word Count: 1199
• Approx Pages: 5

... were produced. These engines used much less coal to fuel them. Whilst coal was still the most widely used fuel, other forms of energy were being investigated and developed. Gas, electricity and, eventually, oil were soon to compete with coal. The discovery of these new fuels gave rise to new industries. There were many new inventions during this time period, which ... first successful trans-Atlantic telephone line was operational. As you read, the second Industrial Revolution was based on the development of new found fuel energy sources, such as gas and electricity. These energy sources...

• Word Count: 1535
• Approx Pages: 6
• Grade Level: High School

... contact lenses and if it weren't for him discovering the bifocal hundreds of years ago I might not be able to see as well today. Even though he did not discover electricity his study of lightening gave us a greater knowledge of the subject and led to him discovering the lightning rod. Today are scientist are trying to find new ways to gain ... electricity and his works previous to them probable give them a better understanding and help them to discover new ideas for today's use. Edison came around some time later but his inventions ... ...

• Word Count: 719
• Approx Pages: 3
• Grade Level: High School

... shocks. When someone was executed with the electric chair the ceremony usually took place close to midnight. This was because at that hour they knew not many people were using electricity; the chair needs thirty thousand watts or the equivalent of four hundred seventy-five-watt light bulbs turning on at the same time. More than one shock was usually required ... to kill the criminal, so it drained a massive amount of electricity from the power company. Since the electric chair, midnight has become the fixed execution time. The next method of execution developed after the electric chair ...

• Word Count: 1826
• Approx Pages: 7
• Grade Level: High School

... were produced. These engines used much less coal to fuel them. Whilst coal was still the most widely used fuel, other forms of energy were being investigated and developed. Gas, electricity and, eventually, oil were soon to compete with coal. The discovery of these new fuels gave rise to new industries. There were many new inventions during this time period, which ... first successful trans-Atlantic telephone line was operational. As you read, the second Industrial Revolution was based on the development of new found fuel energy sources, such as gas and electricity. These energy sources...

• Word Count: 1488
• Approx Pages: 6
• Grade Level: High School

... others with his undertaking of the lighting issue as gas stocks dropped as much as 25%-50% based on his ability to achieve his goals. The future economic value of electricity and other Edison inventions would eventually overcome a temporary weak gas market thanks to Henry Ford. In an examination of one Edison invention, we can see how it created a completely new ... ...

• Word Count: 1330
• Approx Pages: 5
• Grade Level: Undergraduate

... may have revealed a flaw in his overall character, his "free wheeling" style of observation and creativity worked amazingly well for him during the emergence of the relatively "new age" of electricity. Finally, while downright naivete and obstinance often impeded his progress, it is mind-boggling to consider what he might have accomplished had he not suffered a physical handicap that prevented him ... ...

• Word Count: 3349
• Approx Pages: 13
• Grade Level: Undergraduate

... safe and efficient lighting. After two years, Edison discovered a filament made of carbonized thread. He hooked it up inside of a glass bulb which had been vacuum sealed. He then put electricity to it and it stayed lit for days. After people learned of Edisons incandescent light, they gave him the nickname of "The Wizard of Menlo Park". Eight years after his ... ...

• Word Count: 356
• Approx Pages: 1
• Grade Level: High School

Thomas Edison was probably one of the greatest inventors of all time. He was born on Febuary11, 1847. He was born in Milan, Ohio, when electricity was still thought of as a novelty or fad by the society. As a youngster, Thomas asked questions constantly. In 1854 He moved to Huron, Michigan at age 7 where his formal education ... ...

• Word Count: 316
• Approx Pages: 1
• Grade Level: High School

... faster. This led to research and as newer discoveries about the atoms of elements and the structure of atoms were found they realised that electrons could be excited into conducting electricity, this led to the invention of doped semiconductors and then to the transistor. ...

• Word Count: 1202
• Approx Pages: 5
• Grade Level: Undergraduate