The document summarizes the discovery and early applications of electricity. It discusses how the Ancient Greeks discovered static electricity by rubbing fur on amber. It then explains that the first application was Joseph Henry's electromagnet in 1829, which could perform heavy tasks and transport electricity for everyday use. Finally, it outlines that Thomas Edison invented the light bulb in 1879, which used a carbonized cotton filament that could last 14.5 hours and transformed electrical energy into light.

1. Project 1-
What a machine!
Alvaro Díaz Hernando
Beatriz de la Varga Puente
Noelia Martín Ruiz
Adrián Muñoz Benavente

2. The discovery of electricity
 Who discover it?
In about 600 BC, the Ancient Greeks discovered that
rubbing fur on amber caused an attraction between the
two so what the Greeks discovered was actually static
electricity.
 Where was it discovered?
In Greece
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3. The first application of electricity
 What was the first application for electricity?
The first application was a horse-shoe arch
electromagnet invented by Joseph Henry in 1829
 What is it? What was it for?
It was a magnet that could do heavy works. He also
used it to transport electricity into something that
people could use everyday
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4. The light bulb
 One of the first electric machines invented was the
light bulb
 It was invented by Thomas Edison in 1879
 Humphry Davy, Joseph Wilson Swan and Charles
Francis Brush were scientist that helped him to
dicover it.
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5. PARTS OF THE LIGHT BULB.

6.  Where did the electrical energy came from?
It came from a light bulb with a carbonized filament of
uncoated cotton thread that could last for 14.5 hours.
 Which is the energy transformations
performed by the machine?

7.  Where did the electrical energy came from?
It came from a light bulb with a carbonized filament of
uncoated cotton thread that could last for 14.5 hours.
 Which is the energy transformations
performed by the machine?