1. ENERGY & POWER SYSTEMS
JKUSH

2. ENERGY & POWER SYSTEMS
A Brief Introduction:

3. Who discovered electricity?

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

5. 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]

6. 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.

7. 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.

8. Father of Electricity??

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

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

11. 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.

12. 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

13. Ben’s Lightning Rod Sample #1

14. Ben’s Lightning Rod Sample #2

15. 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.

16. 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

17. 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

18. 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.

19. 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.

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

21. 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.

22. 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.

23. Confirmed or Busted?