Liu Zheng recalled that after the earliest incandescent lamps were developed, air existed in the glass.
Although this can make the incandescent lamp shine brightly, it will quickly shorten the life of the tungsten filament in the incandescent lamp.
That's why they studied how to evacuate the air inside incandescent lamps.
Later, the method of emptying the pipe was used. While maintaining the air extraction, the glass pipe of the exhaust port was burned and flattened.
Let all the air inside be exhausted.
This kind of processing method is not difficult for the current level of Longyan technology, but there will definitely be air remaining inside.
"This shouldn't affect the light of the incandescent lamp..." Liu Zheng said uncertainly.
In his memory, the earliest light bulbs went from air to vacuum, and finally found that injecting inert gas was the best option.
Currently, Long Yan has not yet researched the production of inert gases. Some of the waste gas produced in industrial areas does contain inert gases.
But it is extremely difficult to recycle these inert gases.
Finally, Liu Zheng decided on the research plan.
First, temporarily create an evacuated incandescent lamp.
For the production of this kind of incandescent lamp, the biggest difficulty is the bulb model.
But this kind of thing is no longer something Liu Zheng needs to worry about. He only needs to throw his ideas to the scientists, and they will figure out what to do.
However, after Liu Zheng told others his thoughts, he got an interesting idea.
Someone is actually studying the difference engine!
Since Newton and Leibniz discovered the operation of functions, many scientists have been studying how to simplify such complex operations.
Some people think about algorithms, and some people study problems.
Some people study machines according to this algorithm, intending to rely on the power of machinery to make such algorithms simple.
But the calculation of the function is very complicated.
Very few people can successfully research such a thing, but the person in front of Liu Zheng, no matter whether his research is successful or not, at least the other person has created a model of the difference engine.
"Master Liu, please stay a moment and take a look at the difference engine I created."
Others said aside: "No one can create a function computing machine now, and you are no exception, Becky. Don't waste Mr. Liu's time."
"All the parts of the machine I make are made by myself. I can ensure that my machine can easily calculate functions, and can even use addition and subtraction to perform square calculations."
"I really don't understand. What's the significance of your calculation? Can we get an accurate calculation?"
"If you don't believe it, I can show it to you."
Everyone had sneers on their faces, and when they were about to speak, Liu Zheng interrupted them.
In the last generation, the advent of the difference engine indeed caused quite a stir, and it was hailed as the computer of the steam age.
Before the advent of computers, many large-scale calculations were performed by this kind of difference engine.
But this kind of thing is not that easy to use.
Liu Zheng looked at the difference engine and said, "Okay."
After receiving the permission, Becky had a bright smile on his face. Ever since he got inspiration from the cotton spinning machine, he had been studying the difference engine day and night.
However, his research was not taken seriously in Britain.
So he decided to cross the ocean and come to Longyan to continue his research.
Everything from a gear to a screw on this machine was built by him alone.