-
200
Thales 600 BCE
The mathematician Thales in Greece discovered that amber rubbed with animal fur attracted objects. -
300
Huang Ti 300 BCE
Huang Ti was said to be the first to use a lodestone as a compass. -
Jan 1, 1550
Girolamo Cardan
He evolved on the experiments of Thales and concluded that amber attracted small objects because of a fatty fluid they contained. -
Jan 1, 1573
Willam Gilbert
Found that like amber, many other substances attracted light objects. -
Otto Von Guericke
Invented the first machine that could produce electricity in large amounts. -
Ben Franklin
He discovered that electrical fluid consists of positve and negative charges, -
Ben Franklin
Proved that lightning is electrical. -
Period: to
Andre Ampere
His experiments on electric currents. His work made it possible for us to be able to measure the amount of electricity in a current. -
Period: to
Michael Faraday
His work with electricity and magnetisim led to the inventions of the motor, generator, transformer, telegraph, and the telephone. -
Luigi Galvani
Placed a dead frog on an iron plate and then touched the plate with a brass hook. When the hook hit the plate hit frogs leg twitched violently and reasoned that there is electricity in the frogs leg. -
Alessandro Volta
He disagreed with his college Galvani, concluding that there was salt water in the frogs leg. This led him to invent the first battery. -
Charles de Coulomb
First to measure the amount of elecricity in a circuit. -
Georg Simon Ohm
Discovered the relationship between resistance, voltage and current. -
Thomas Edison
He invented the first practical lightbulb. -
Nikola Tesla
Invented the induction motor, and a system that transmitted alternating current.
