Who invented the light bulb?
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The modern world can not be imagined without the modern conveniences.Electricity, heat, energy, Internet - Collect all humanity, and they are unlikely to survive.But as you know, any development needs of their time and their characters.Today, we will talk about the invention of fluorescent lamps, without which it can not do today, not a single room.So:
Who invented the light bulb?
Even in antiquity people have made the first attempts to create a device that can illuminate a dark room at night or in the room, which is under the ground.It is known that in ancient Egypt and in the Mediterranean used olive oil, which was placed in an earthen vessel with wicks made of cotton fabric.And, for example, residents of the Caspian Sea was used in such vessels oil.
replaced clay vessels came the first candle.They were invented in the Middle Ages.It is composed of beeswax and beef tallow.For many centuries the most outstanding genius of the Earth worked on the creation of the first kerosene lamp.Among them, by the way, was Leonardo da Vinci.
Despite the best efforts of the inventors, the structure, which was safe and suitable for mass production appeared only in the mid-19th century.Due to the rapid technological progress, and the first electric light bulb after a quarter of a century.
first electric candle, which gradually turned into a light bulb, invented APPLE Pavel.First street lighting was carried out with the help of his instrument.However, the candles were not very efficient and, therefore, entirely unprofitable.The cost of one candle was 20 cents, and had to change them every six hours.Later, the lights were invented, which could change the candle yourself.Despite the fragility and uneconomical electric candles, this invention has made a significant contribution to the development of the lighting industry.Even then, this technology has been used in shops and theaters, restaurants and hotels.
In the period from 1840 to 1860, many inventors have tried to create a light bulb.During all these years, none of the attempts failed.All were ready to give up on the idea.However, in 1873 there was a breakthrough in this area.Lodygin Alexander invented a light bulb, which is able to withstand all tests.The first lamps were burning about half an hour, not longer.Then he came up to pump the air out of the glass bulb - it increased the life of the bulb.In 1873, the first two Lodygina lamp lit on the streets of St. Petersburg.Lodygin invented the light bulb.
also credited with the invention lamp American inventor Thomas Edison.He created a lamp that was able to burn hundreds of hours without losing its energy.Edison knew about the experiments Lodygina knew about the shortcomings of his invention, so he set out to create a more reliable lamp.He spent the 6000 experiments and, ultimately, in the final design, it used the coal thread lamps, made of sturdy bamboo hair.Through his experiments, Edison tested almost all bamboo varieties.The main thing that was done by Edison - the discovery of the production of light bulbs, allowing the technology to put on stream.