- Heinrich Hertz lived from 1857 to 1894 and was the first to demonstrate experimentally the production and detection of Maxwell's waves (radar). This discovery lead directly to the invention of radio.
- Guglielmo Marconi, an Italian inventor, proved the feasibility of radio communication. He sent and received his first radio signal in Italy in 1895. By 1899 he flashed the first wireless signal across the English Channel and two years later received the letter "S", telegraphed from England to Newfoundland. This was the first successful transatlantic radiotelegraph message in 1902.
- From the earliest phonographs in 1877, courtesy of Mr. Thomas A Edison, the first records were made on strips of tinfoil, the predecessor of household aluminium foil, wrapped around a 4-inch diameter drum.
- In February 14, 1876, Elisha Gray, American Inventor, contested the invention of the telephone with Alexander Graham Bell. On the basis of its earlier filing time, mere hours, and on the subtle distinctions between a caveat and an actual patent application, the US Patent Office awarded Bell the patent for the telephone.
- Charles P. Ginsburg led the research team at Ampex Corporation in developing the first video tape recorder (VTR).
- In 1956 Ampex sold the first video tape recorder and in 1971 Sony sold the first video cassette recorder.
- In 1884, German, Paul Nipkow developed a rotating-disc technology to transmit pictures over wire, it was the first electromechanical TV scanning system. It was called the Nipkow disk.
- Marvin Middlemark invented "rabbit ears", the 'V' shaped TV antennae. Among Middlemark's other inventions were a water-powered peeler and rejuvenating tennis ball machine.
- The first TV remote control called "Lazy Bones" was developed in 1950 by Zenith Electronics (then known as Zenith Radio Corporation).
- André-Marie Ampère was a French physicist who laid the foundations for the science of electrodynamics through his demonstration that electric currents produce magnetic fields, and through his subsequent investigation into the relationship between these two phenomena.
- Invented around 1690, the clarinet is a single-reed woodwind instrument with a cylindrical tube. The clarinet evolved from an earlier instrument called the chalumeau, the first true single reed instrument. Johann Christoph Denner, Nuremburg (1655 -) invented the clarinet.
- The piano first known as the pianoforte developed from the harpsichord around 1720, by Bartolomeo Cristofori of Padua, Italy.
- Mary had a little lamb." With these words, Thomas Edison started a technological revolution that continues today. The phonograph marked the beginning of the recording industry.
- Patents give inventors the incentive to invent new and improve olds ways of creating, reproducing, or transmitting musical sound and provide an opportunity for inventors to profit from their innovations without unfair competition.
- Canadian, Hugh Le Caine not only built the world's first voltage controlled music synthesizer (1945), touch sensitive keyboard, and variable speed multi-track tape recorder, he also composed unique works that helped to popularize electronic music.
- Mariano Fortuny y Madrazo was born in Granada, Spain in 1871 but spent his life in Venice, Italy. Fortuny's most influential invention is the dimmer switch, first put into practice when he collaborated with Gabriele D'Annunzio on the stage production of the Ricardo Zandonai opera Francesca da Rimini.
- The first development in electric lighting was the arc lamp, which was evolved from the carbon-arc lamp demonstrated in 1801 by Sir Humphry Davy, in which an electric current bridges a gap between two carbon rods and forms a bright discharge called an arc.
- Modern stage lighting is a flexible tool in the production of theatre, dance, opera and performance arts. Several different types of lighting instruments are used in the pursuit of the various principles or goals of lighting.
- Most theatrical light bulbs (or lamps, the term usually preferred) are incandescent. Fluorescent lights are rarely used outside of work lights because, although they are far more efficient, they cannot be 'dimmed' (run at less than full power), they do not produce light from a 'point' or easily concentrated area, and have a warm-up period, during which they emit no light or do so intermittently.
- House lights and Work lights - House lights are incandescent or fluorescent floodlights. House lights provide light for the audience before and after performances and during intermissions. Work lights provide general lighting backstage, or in the house. House lights are often controlled by dimmers, but are sometimes on simple switches.
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