For rapid communication between distant exploring or surveying stations, tbe photophone also promises to be serviceable. Another result of Mr. Bell's researche, in this connection is the discovery ...

Turns out the photoacoustic effect was known as early as 1880 while Alexander Graham Bell was working on his photophone which used sunlight to transmit speech. That device had a receiver that used ...

He transmitted sound waves through his invention, the photophone and first ever telephone. In homage to him, Zharov's team nicknamed their invention the "cytophone," cyto- meaning ‘of cell.' ...

By 1931 the US broadcaster RCA had created a ribbon microphone called the “Photophone”, largely for use in the rapidly growing film industry, and these were commercially available. However the ...

Like Bell's photophone, the purpose of fiber optics is to convert a signal to light, move the light over distance, and then reconstruct the original signal from the light. The equipment used to do ...

Wheeling's ideas were about a century ahead of the technology required to make "piping light" feasible. That same year, Alexander Graham Bell developed an optical voice transmission system he called a ...

Frigensophobia is the fear that using your mobile is damaging your brain. Addiction to mobile phones is called nomophobia.