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2750 BCE
Discovery of Animal Electricity
Ancient Egyptian texts described electric fish and identified them with thunder. The electric catfish of the Nile was well known to the ancient Egyptians. The Egyptians reputedly used the electric shock from them when treating arthritis pain. They would use only smaller fish, as a large fish may generate an electric shock from 300 to 400 volts. The first known depiction of an electric catfish is on a slate palette of the predynastic Egyptian ruler Narmer about 3100 BC. -
1300
Lightning
Arabic naturalists and physicians described electric rays and identified them with lightning. The electrostatic phenomena was again reported millennia later by Roman and Arabic naturalists and physicians. -
Stephen Gray Experiement
In 1729, Stephen Gray conducted a series of experiments that demonstrated the difference between conductors and non-conductors (insulators), showing amongst other things that a metal wire and even packthread conducted electricity, whereas silk did not. -
The Leyden Jar
The Leyden jar, a type of capacitor for electrical energy in large quantities, was invented independently by Ewald Georg von Kleist on 11 October 1744 and by Pieter van Musschenbroek in 1745—1746 at Leiden University. When experimenting with the Leyden jar, discovered in 1747 that a discharge of static electricity was equivalent to an electric current.. -
Benjamin Franklin
merican scientist Benjamin Franklin showed that lightning was electrical by flying a kite, and explained how Leyden jars work (Is an antique electrical component which stores a high-voltage electric charge (from an external source) between electrical conductors on the inside and outside of a glass jar.). -
Galvanic Action
Italian scientist Luigi Galvani discovered the Galvanic action in living tissue and was who demonstrated what we now understand to be the electrical basis of nerve impulses. In 1780, he accidentally made frog muscles twitch by jolting them with a spark from an electrostatic machine. -
Pierre-Simon Laplace
French mathematician Pierre-Simon Laplace developed the Laplace transform to transform a linear differential equation to an algebraic equation. Later, his transform became a tool in circuit analysis. -
Alessandro Volta
Italian physicist Alessandro Volta invented the battery provided the first source of continuous current. -
John Dalton
John Dalton to propose a modern theory of the atom based on the following assumptions.- Matter is made up of atoms that are indivisible and indestructible.
- All atoms of an element are identical.
- Atoms of different elements have different weights and different chemical properties.
- Atoms of different elements combine in simple whole numbers to form compounds.
- Atoms cannot be created or destroyed. When a compound decomposes, the atoms are recovered unchanged.
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Hans Christian Ørsted
Was a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism. Oersted's law and the oersted (Oe) are named after him. -
Thomas Johann Seebeck
During his experiments, he observed that a junction of dissimilar metals produces a deflexion on a magnetic needle (compass) when exposed to a temperature gradient. Because Ørsted had discovered that an electric current produces a deflexion on a compass transversal to the wire, Seebeck's results were interpreted as a thermoelectric effect[2]. This is now called the Peltier–Seebeck effect and is the basis of thermocouples and thermopiles. -
Edmond Becquerel
He is credited with the discovery of the photovoltaic effect, the operating principle of the solar cell, in 1839.[1][2] He is also known for his work in luminescence and phosphorescence. -
Thomas Alva Edison invents the fuse
He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb, have had a widespread impact on the modern industrialized world -
Nikola Tesla
Nikola Tesla demonstrated the first wireless remote control of a model ship. -
Edwin Howard Armstrong
Edwin Howard Armstrong developed FM radio receiver
