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In the paleolithic period, the ancient people began to preserve fire consciously, improving their living environment, not only the cooked food, but also the light at night and the tools to deal with the fierce animals. But it was not until more than a hundred years ago, when Edison invented the electric light, that the means by which we got it changed. In 2014, three Japanese and us scientists, IsamuAkasaki, HiroshiAmano and ShujiNakamur, won the 2014 Nobel Prize in physics. The prize was awarded for "the invention of an efficient blue light diode with a bright and energy-saving white light source".
Three winners of the 2014 Nobel Prize in physics
Seek the light of night
The eternal is the starlight of nature. But in the past, only the full moon could illuminate the earth. The difference between civilization and civilization was whether we could bring light to the night with our own technology. In the beginning, we could only burn oil. In western countries, there were a lot of whaling. Until the oil industry developed, cheap, saturated long-chain hydrocarbons were used as candles.
Early next year, the film is expected to be about Edison's dc versus tesla's ac
This type of burning is clearly not safe. So the story of Edison's invention of the light bulb is well known. By the end of this year, Benedict cumberbatch's Edison will be on the big screen. The invention of the incandescent light bulb by Edison and the later modified incandescent light bulb brought light, but they were characterized by low efficiency of luminescence.
LED makes today's lamp design more artistic (panasonic product)
Today, our light is shifting from incandescent and fluorescent lights to light-emitting diodes (leds). But what many people don't know is that human scientists have been searching for blue leds for 30 years! It was so difficult to find the blue, industrial significance of the production of LED, finally enough primary colors to achieve white light! LED lighting is destined to belong to the century we live in now. In this sense, it is not excessive to award the Nobel Prize.
Diodes and light-emitting diodes
Before the author said, talking about Intel history in the 1950 s, diode, triode s out of the lab, there are a lot of companies are engaged in the research, including Texas instruments, Texas instruments today more well-known is DLP projection technology.