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Our group presentation

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  1. 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. 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. 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.
  4. 4. First Electric Machine Built OFrancis Hauksbee OAround 1700 OSingle-barrelled pump OUsed static electricity: No wires. Created when the glass globe became charged.
  5. 5. Parts The most important parts are: O Pulley O Glass globe
  6. 6. 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