He quotes “there is no substitute for hard work” Thomas Edison He quotes “there is no substitute for hard work”
What he invented. The quadruplex telegraph Incandescent light bulb Phonograph cylinder Carbon microphone Movie camera
The Incandescent Light bulb The incandescent light bulb is an electric Light that makes light with a wire filament that gets heated by electricity to a high temperature until it gl0ws
The quadruplex Telegraph The Quadruplex telegraph is a type of electric telegraph which allows a total of four separate signals to be transmitted and received on a single wire at a time (two signals in each direction)
The Phonograph Cylinder Phonograph cylinders are the first commercial medium for recording and producing sound. Commonly know as “records” In their era of Greatest popularity (1986-1915)
Carbon Microphone The Carbon microphone is a type of microphone, a transducer that converts sounds into a electrical audio System.
Movie Camera (motion Picture Camera) motion-picture camera: a camera that takes a sequence of photographs that can give the illusion of motion when viewed in rapid succession
References. Google Images Wikipedia YouTube By Riley