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This animation demonstrates how radios work.
radio, radio wave, radio broadcast, radio receiver, radio station, relay station, speaker, antenna, tuner, amplifier, transformer, demodulator, FM, AM, amplitude modulation, frequency modulated signal, frequency, electromagnetic, electric current, physics, technology
Edison´s invention records and plays sound from a cylinder, while Berliner´s apparatus uses a disc.
The American inventor presented his invention revolutionising telecommunication at New York University in 1837.
DC motors consist of a permanent magnet and a coil within the magnet, with electric current flowing in it.
The Internet allows us to send data quickly to large distances.
This animation demonstrates how a CRT television works.
This animation demonstrates the structure and operation of hair dryers.
In loudspeakers sound waves are generated by electromagnetic induction.
This animation demonstrates how mobile phones work.
This animation demonstrates the structure and operation of different types of optical disc drives.
This animation demonstrates the mechanism and operation of record players.
This animation demonstrates how a washing machine works.
The earliest version of the lute appeared in ancient Mesopotamia.
The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.
The device that transmits human voice as electrical signals was invented by Bell in 1876.
Television, invented in the early 20th century, became one of the basic forms of entertainment.
A force can be measured by measuring the twisting of the torsion wire in a torsion balance.