ENERGY & POWER SYSTEMS JKUSH 9-2010

ENERGY & POWER SYSTEMS A Brief Introduction:

Who discovered electricity?

Who discovered electricity? Let’s go back in time to find out…

A Brief History of Electrical Discovery Ancient Greeks than two thousand years ago 8th to 6th century BC discovered rubbing fur on amber caused an attraction between the two. [static electricity]

A Brief History of Electrical Discovery 17th Century – many discoveries early electrostatic generator the differentiation between positive and negative currents classification of materials as conductors or insulators.

A Brief History of Electrical Discovery 1600 William Gilbert coined the term electric, from the Greek elektron, to identify the force that certain substances exert when rubbed against each other.

Father of Electricity??

Father of Electricity?? Benjamin Franklin 1752 Flying kite experiment during a thunderstorm

Father of Electricity?? Benjamin Franklin 1752 Flying a Kite Experiment during a thunderstorm led to the discovery that lightning &electricity were somehow related

Father of Electricity?? Benjamin Franklin 1752 Flying a Kite Experiment during a thunderstorm led to the discovery that lightning &electricity were somehow related Modern scientists know this to be something of a tall tale, since being hit by lightning would have been fatal. It's likely that Franklin was actually insulated, away from the path of lightning.

Father of Electricity?? Benjamin Franklin 1752 Flying a Kite Experiment during a thunderstorm led to the discovery that lightning &electricity were somehow related Modern scientists know this to be something of a tall tale, since being hit by lightning would have been fatal. It's likely that Franklin was actually insulated, away from the path of lightning. Led to the invention of the lightning rod

Ben’s Lightning Rod Sample #1

Ben’s Lightning Rod Sample #2

Father of Electricity?? Benjamin Franklin 1752 The bottom line: The kite experiment helped Franklin establish a relationship between lightning and electricity, which led to the invention of the lightning rod. Benjamin Franklin went on to observe other phenomena related to electricity, but many believe that he didn't actually discover its true nature.

A Brief History of Electrical Discovery Alessandro Volta 1800 voltaic pile a.k.a. the electric battery The first device to produce a steady electric current

Voltaic Pile Volta 1800 alternating layers of silver plates and zinc plates blotting paper (like a super absorbent paper towel) soaked in salt water between each layer [this acts like an electrolyte] a voltage can be measured at the terminal ends similar idea to a typical car battery

A Brief History of Electrical Discovery Alessandro Volta 1800 voltaic pile a.k.a. the electric battery The first device to produce a steady electric current Volta, not Franklin, discovered that certain chemical reactions could produce electricity.

A Brief History of Electrical Discovery Alessandro Volta 1800 voltaic pile a.k.a. the electric battery The first device to produce a steady electric current Volta, not Franklin, discovered that certain chemical reactions could produce electricity. Volta also created the first transmission of electricity by linking positively-charged and negatively-charged connectors and driving an electrical charge, or voltage, through them.

A Brief History of Electrical Discovery 1831 Electricity became viable for use in technology.

A Brief History of Electrical Discovery 1831 Electricity became viable for use in technology. English scientist Michael Faraday created the electric dynamo - a crude precursor of modern power generators.

A Brief History of Electrical Discovery 1831 Electricity became viable for use in technology. English scientist Michael Faraday created the electric dynamo - a crude precursor of modern power generators. This invention opened the door to the new era of electricity. A few decades later, in 1879, Thomas Alva Edison “invented” the light bulb.

Confirmed or Busted? http://www.youtube.com/watch?v=IGV59iShT2s