During his life, Thomas Edison received 1093 patents in the United States and several thousand patents in other states. Almost every one of his inventions made life easier for people and moved humanity towards the development of scientific and technological progress. We remembered the 10 most significant inventions of Edison for mankind, in our opinion. There are corresponding patents for all these inventions (except for 4 points), so there is no doubt about their “belonging” to Edison.

one ticker machine

Although this invention was not...
Although this invention was not the first (first appeared “Electric vote meter in the elections”) patented by Edison, it was the first to affect the economic component of the United States and the financial condition of Edison himself.

The ticker machine was a device for displaying current stock quotes on the stock exchange. At one end of the telegraph line, a man was writing a quote on a typewriter, and a narrow strip of paper with numbers printed on the ticker machine would appear. The print speed was approximately 1 character per second. For this invention, Edison was paid 40 thousand dollars, which became a serious start-up capital for the development of his company.

2 Automatic telegraph

By itself electrostatically
The electrostatic telegraph itself was developed by Lesage as early as 1774. However, Thomas Edison improved it by introducing an automatic bur for punching paper. Now it was not necessary for the person on the other end to manually type the text.

Thanks to this, the typing speed increased from 50 words per minute to 200. After a while, Thomas finalized the device, and the number of words increased to 3000. Interestingly, in the process of working on this particular project, Thomas met his future wife, Mary Stillwell, who became the inspiration for the creation hundreds of other devices.

3 Phonograph

The phonograph shown in the image
The phonograph, introduced by the inventor on November 21, 1877 (a patent for it was received on February 19, 1878), became a real breakthrough in the world of sound recording. He could record and play music.

The carrier had a spiral track, which in different parts could have a different depth, proportional to the volume of the sound. When the needle moved along the groove, it transmitted vibrations to the membrane, which in turn reproduced the sound. The phonograph became the progenitor of the gramophone and gramophone, which were used for the next few decades.

four The word “Hello”

What word do you pronounce when...
What word do you say when you pick up the phone? Someone says “yes” or “I’m listening.” However, the vast majority say “hello”. It was this word that Edison proposed to use as a greeting on August 15, 1877, when he wrote a letter to the president of the Pittsburgh Telegraph Company.

In this “battle” he was opposed by Alexander Bell, the founder of American telephony, who offered a greeting when talking on the phone with the word “ahoy” (used when meeting ships). But the word “Hullo” (a derivative of the word “Hello”) took root better than we are witnesses.

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5 Mimeograph

mimeograph or rotator
The mimeograph or rotator was intended for quick (at that time) copying and reproduction of books and magazines. It consisted of a copy box and an electric pen, which first created a stencil (you had to write by hand). The created matrix on waxed paper was used for printing polygraphy.

Edison’s mimeograph was a rather complex design, which was then improved and simplified.

6 carbon microphone

The carbon microphone itself...
By itself, the carbon microphone for Alexander Bell’s phones was not invented and invented by Edison. However, he was the first to decide to use charcoal powder instead of rods. The powder was located between two plates, one of which was connected to the membrane.

The microphone was powered by direct current. Thanks to Edison’s improvement, the microphone increased the signal range. Edison received a patent for this device on December 9, 1879. Interestingly, in the future, the microphone was somewhat improved by Anthony White, but coal powder continued to be used in the device.

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7 Incandescent lamp with carbon filament

Some mistakenly believe that...
Some mistakenly believe that Edison invented the incandescent light bulb as such, but this is not the case. Many scientists had a hand in its invention, each of which achieved success at a certain stage. For example, Didrichson was able to achieve a vacuum in the bulb of a lamp, and Alexander Milashenko launched the development of a carbon filament.

However, Thomas Edison was the first to create an incandescent carbon filament lamp with a lifespan of 40 hours. At first glance, this may seem very small, given that modern LED devices work for 20-30 thousand hours, but at that time it was a breakthrough. Thanks to this, Edison was able to supplant gas lighting and replace it with electric lighting, which will be discussed in the next paragraph.

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eight Electric lighting system

Edison pioneered the concept of modern electric lighting. For this, he developed special rotary switches, unified (with the designation Exx, where xx is the diameter in millimeters) threaded sockets for screwing in light bulbs, terminals, sockets with plugs, fuses, incandescent lamps and the actual electricity meter. He did not make all these devices on his own, but he was able to connect them into a single power supply system.

He also added a three-wire 110 V DC network to this system.
In the same year (1880), when the system begins to operate, Edison introduces a new incandescent lamp with a service life of 1200 hours. Thanks to a similar lighting and power supply system, the Edison company began to sell 75% of all light bulbs in the United States.

9 Kinetoscope

It was a cinema for one person...
It was a cinema for one person. Kinetoscope was an optical device for displaying moving pictures on film. The film was passed through this device and the person could see the captured frames. The perforated film itself was later used by the Lumiere brothers for their films.

ten alkaline battery

In 1901, Thomas Edison invented the same
In 1901, Thomas Edison invented the iron-nickel battery, which became the basis for the Detroit Electric and Baker Electric electric vehicles. However, in search of a more efficient battery, Edison began experimenting with alkaline solutions and created an alkaline battery.

He patented it on July 31, 1906. Sales of these batteries brought the Edison company tens of millions of dollars.

These are not all of Edison’s inventions that have influenced the world as a whole. Share in the comments what discoveries of this brilliant scientist, in your opinion, are the most significant in the work of his workshop!

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