Telegraph (Samuel F. B. Morse)
The American inventor presented his invention revolutionising telecommunication at New York University in 1837.
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The device that transmits human voice as electrical signals was invented by Bell in 1876.
This animation demonstrates how mobile phones work.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...
Edison´s invention records and plays sound from a cylinder, while Berliner´s apparatus uses a disc.
An interesting logical exercise: you have many weights that look the same, you have to find the only one that is different.
Wolfgang von Kempelen´s best known invention.
The American electrical engineer Edison invented the incandescent light bulb in 1879, which changed our everyday life.
This animation demonstrates how radios work.