Here is our group presentation

1. PROJECT 1- What a
machine!!
PART 1- Discovery of
electricity
By Elena Montoya Villegas, Emma Palazón
Anes, Julia Serrano García and Marina Vega
Ortega.

2. When was electricity
discovered?
● In 1752
● By Benjamin Franklin
● In Philadelphia
● By tying a metal key to the bottom of a kite in a
thunderstorm.

3. What was the first application for
electricity ?
-Was electromagnetism
-It was used to rise objects.Was done by steam engines, water
wheels, horses, or even people.
-1839 by Joseph Henry
-It was used until the end of 19th century.

5. First Electric Machine Built
OFrancis Hauksbee
OAround 1700
OSingle-barrelled pump
OUsed static electricity:
No wires.
Created when the glass globe became
charged.

6. Parts
The most important
parts are:
O Pulley
O Glass globe

7. Where did the electrical energy
consumed come from?
The machine became charged by:
● Rotating fastly a pulley
● Rubbing the glass globe with the hands
● Friction and mechanical energy transformations
● Device used for making experiments in a vacuum