Who invented the light bulb?

Henry Goebbels.

The world's first electric light was born on October 21, 1879. It was invented by the American scientist Edison. Edison began researching electric lights in 1879. The first incandescent material he chose was platinum, which had the highest melting point of any metal known at the time. But platinum light bulbs are too expensive, and when they reach incandescence temperature, their lifespan is only one or two hours.

Edison invented

In 1889, Edison invented a movable movie camera that used a pointed gear to drive a 19 mm wide telescope. The punched tape, under the control of the ratchet, drives the tape to move intermittently while punching holes. This kind of camera is driven by a motor, and the shutter shaft is linked to a phonograph. When the camera is running, the phonograph records the sound and can continuously capture images.

In 1891, Edison invented the kinetoscope, an early film display device that introduced the basic method of film projection by using an engine in front of a light source to rotate a film strip with continuous pictures at high speed, thus Producing the illusion of movement, a light source projects the image on the film onto the screen.

In October 1879, Edison successfully made an incandescent light bulb using carbonized fiber as the filament, which was called a carbonized cotton filament incandescent lamp. It was subsequently put into mass production, and a company was established to set up power stations and transmission grids. infrastructure that soon made electric light common in the United States.