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2750 BCE
The Electric Fish
In ancient Egyptian texts they described electric fish that gave off electricity and identified them with thunder. These electric fish are the only fish that can generate electric fields, it is said that a fish that can generate electric fields is electrogenic. -
600 BCE
Thales of Miletus and electricity
Thales discovered and described static electricity by rubbing the skin on substances such as amber. Static electricity is an imbalance of electrical charges inside or on the surface of a material. The charge remains until it can be removed by an electric current or an electric shock. -
Ewald Georg von Kleist and Pieter van Musschenbroek
German physicist Ewald Georg von Kleist and Dutch scientist Pieter van Musschenbroek invented Leyden jars that were the original form of the condense -
Coulomb's law
French physicist Charles-Augustin de Coulomb formulated and published Coulomb's law in his paper Premier Mémoire sur l’Électricité et le Magnétisme.
Coulomb's law is an experimental law of physics that quantifies the amount of force between two electrically charged stationary particles. -
The First Battery
The Italian physicist Alessandro Volta invented the battery.
He was an Italian physicist, chemist and pioneer of electricity and energy who is credited as the inventor of the electric battery and the discoverer of methane. -
The Electric Telegraph
The English inventor Francis Ronalds built the first electric telegraph in operation.
An electric telegraph was a point-to-point text message system, used from the 1840s until the best systems became widespread. It used coded pulses of electric current through dedicated cables to transmit information over long distances. It was the first electrical telecommunications system -
The First Electromagnet
English physicist William Sturgeon developed the first electromagnet.
It is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets generally consist of wire wound in a coil. -
Georg Ohm
German physicist Georg Ohm introduced the concept of electrical resistance.
The electrical resistance of an object is a measure of its opposition to the flow of electrical current. -
Nicholas Callan
Irish priest and later scientist Nicholas Callan invented the transformer in Ireland.
A transformer is a passive electrical device that transfers electrical energy from an electrical circuit to one or more circuits. -
Kirchhoff circuit laws
German physicist Gustav Kirchhoff developed two laws now known as Kirchhoff circuit laws.
He was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy and the emission of black body radiation from hot objects. -
The Fisrt Microphone
German scientist Johann Philipp Reis invented the microphone.
He was a German self-taught scientist and inventor. In 1861, he built the first manufacturing and repair telephone, now called the Reis telephone. -
The Light
First street lighting in Paris, France. -
The Phonograph
American inventor Thomas Alva Edison invented the phonograph.
The phonograph is a device for mechanical recording and sound reproduction. -
The First Speaker
German industrialist Werner von Siemens developed a primitive speaker.
He was a German electrical engineer, inventor and industrialist. The Siemens name has been adopted as the SI unit of electrical conductance, the siemens. He was also the founder of the electricity and telecommunications company Siemens. -
Joseph Swan
English engineer Joseph Swan invented the incandescent bulb.
An incandescent bulb is an electric light with a heated wire filament until it turns on. The filament is enclosed in a bulb to protect the filament from oxidation. -
The First Fuse
Thomas Alva Edison invents the fuse.
A fuse is an electrical safety device that works to provide overcurrent protection of an electrical circuit. Its essential component is a wire or strip of metal that melts when too much current flows through it. -
The first radio communication system
The Italian inventor Guglielmo Marconi builds the first radio communication system, based on radiotelegraphy.
Radio is the signaling and communication technology using radio waves. -
The first fluorescent lamp
American engineer Peter Cooper Hewitt invented the fluorescent lamp.
He was an American electrical engineer and inventor who invented the first mercury vapor lamp in 1901. -
The First Television
Scottish engineer Alan Archibald Campbell-Swinton established the principles of television.
He was a Scottish consultant electrical engineer, who provided the theoretical basis for electronic television, two decades before the technology existed to implement it. -
The printed circuit board
Austrian engineer Paul Eisler invented the printed circuit board.
A printed circuit board (PCB) mechanically supports and electrically connects electrical or electronic components using conductive tracks, pads and other features recorded from one or more layers of copper sheets laminated on and / or between layers of sheets of a non-substrate driver . The components are usually soldered on the PCB to connect them electrically and hold them mechanically. -
The Laser
American engineer Theodore Harold Maiman developed a LASER.
A laser is a device that emits light through an optical amplification process based on the stimulated emission of electromagnetic radiation. -
First cassette tape recorder
A cassette recorder is an electromechanical device that records analog audio and analog video from the television broadcast or other source on a removable magnetic tape cassette and can play the recording
