"Your Majesty, this is what you want. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo”

In the glass workshop, the supervisor handed Xiao Ming a short glass rod, and there was obviously a white mark in the middle of this glass rod.

This thing is the purpose of Xiao Ming's here, he is the thermometer.

The first thermometer in history was invented in 1593 by the Italian scientist Galileo.

This thermometer has an open glass tube at one end and a walnut-sized glass bubble at the other end, which is heated at the time of use and then inserted into the water.

At this time, as the temperature changes, the water surface in the glass tube will move up and down, and the temperature change and temperature can be determined according to the amount of movement.

It can be said that the thermometer at this stage was filled with water, and then in the 17th century, the French reduced the volume of the glass bubble and changed the temperature measuring material to mercury, which is the prototype of the thermometer in later generations.

Immediately after that, the Dutchman Wallenheitt used alcohol in 1709 and mercury as a measuring substance in 1714 to create a more accurate thermometer, which is the development of thermometers.

And with the birth of the thermometer, the standard of Celsius and Fahrenheit was also born.

Although the thermometer is only a small invention, it is an important invention because it is possible to measure a specific temperature value.

In fact, this kind of glass mercury thermometer is not very precise and complicated, and the steps are generally to make hollow glass tubes first, which is not much difficult for the current glass workshop.

As for the mercury bubbles and the small bubbles that act as partitions in this thermometer, they are nothing more than glass-blowing techniques.

After making the glass rod, it is filled with mercury, and then the glass tube is heated and sealed in a low-pressure environment, and the sealing place can be heated.

At this time, the mercury part is at the other end, the thermal conductivity of the glass is not good, so it basically does not affect the mercury, after the end of these actions, it is the scale, this work because Xiao Ming has a ready-made standard reference, so it is also very simple, only need to follow the modern Celsius standard.

And he is also preparing to adopt Celsius as the temperature standard for the future of the Great Chongqing Kingdom.

Now the thermometer in his hand is used to measure the temperature of the human body, and his purpose is to use the human thermometer to establish the temperature standard of the Great Chongqing Kingdom, so that he can produce industrial thermometers and still promote the temperature standard.

In his opinion, whether it is the steel industry or the smelting industry, the temperature control of the production process is very strict, and accurate temperature control can improve the quality of industrial production.

Therefore, after the human body thermometer, he wants to produce an industrial bimetal thermometer, which uses the principle that two different metals expand differently when the temperature changes, and can be used to detect the temperature of industrial production.

This type of thermometer usually makes the metal sheet into a spiral coil shape, and when the temperature of the multiple layers of metal changes, the metal of each layer expands or contracts by different amounts, which causes the spiral to roll up or loosen.

Since one end of the spiral coil is fixed and the other end is connected to a freely rotating hand, the pointer indicates the temperature on a circular index scale when the bimetal feels a change in temperature.

For him, this kind of thermometer is capable of being produced in Qingzhou at the current stage, and as for the advanced resistance thermometer, it is still far away, but he is told that this is enough, and he only needs to hand over the structural diagram of the metal thermometer to the clockmaker, which is not a problem for the clockmaker who can make the pendulum clock.

"By the way, what about microscopes?" Xiao Ming asked.

This time, he not only assigned the glass workshop the task of producing thermometers, but also gave the task of making microscopes.

Compared to telescopes, this microscope is the other extreme, and he plans to make this and send it to medical school.

"Your Majesty, wait a minute, this microscope is made by another group of craftsmen, and it will be there soon." The warden said, and as soon as he finished speaking, a craftsman walked up to him with a microscope.

Like the monoculars, the microscope in the hands of the craftsman is imbued with the quaint taste of the eighteenth century, with glass lenses and a metal body.

After getting these two things, Xiao Ming was satisfied, and he said to Qian Dafu: "Go, go to medical school, and let this Huang Tingzhi understand how powerful I am." ”

Xiao Ming was happy, and Qian Dafu was also happy, although he didn't know what these two were for, but judging from Xiao Ming's expression, it must be a powerful thing.

After leaving the glass workshop, the two went directly to the medical school.

After splitting the Bowen College, Xiao Ming found another place for the medical school, which was not far from the Bowen College, that is, the distance between the two people's squares.

The high mortality rate of wounded soldiers in the Northern War made Xiao Ming have to pay attention to the development of medical school, if the medical technology could keep up, it would not be so great for soldiers to be attritional.

In the future, the Great Chongqing Kingdom will face more wars, and it is very important to train a group of refined medical officers at this time.

When he arrived at the medical school, Xiao Ming went directly to the medical hall set up in the medical school, where Huang Tingzhi would teach the students and treat the people at the same time.

"Your Majesty." Xiao Ming's arrival surprised Huang Tingzhi a lot, and he immediately got up and saluted.

Xiao Ming excused Huang Tingzhi, he took out the thermometer and microscope and said to Huang Tingzhi: "Huang Lao, I came here today to send you two sharp weapons. ”

Huang Tingzhi was a little stunned, he looked at the glass rod in Xiao Ming's hand, then looked at the microscope, and said in confusion: "Your Majesty, what are these?" “

"Thermometers and microscopes." Xiao Ming said that he was not surprised that Huang Tingzhi did not know this, because Huang Tingzhi was still studying the medical classics he gave a few steps, and he had not been exposed to Western things for the time being.

"This ......" Huang Tingzhi was still a little confused.

Xiao Ming said: "How does Huang Lao judge whether a person has a cold on weekdays? “

"Naturally, it's a matter of looking and hearing."

Xiao Ming said: "With this thing, I don't need to look and smell to know if this person is sick?" “

"The emperor is joking, there is no need to look and hear, how can the emperor know?" Huang Tingzhi suddenly burst out laughing when he heard this.

Xiao Ming knew that this Huang Tingzhi was very confident, so he had always been worried that he would be disdainful of Western medicine, so he would come over in person this time to let Huang Tingzhi feel the unique medical skills.

Hearing this, he said, "Elder Huang only needs to take this thing to measure the body temperature of the patients among the medical officers. ”

Then Xiao Ming explained the principle of the thermometer, and at the same time briefly talked about the knowledge such as human body temperature.

Holding the thermometer, Huang Tingzhi's expression was very shocked, and he half-believed and tested the temperature of each patient in the medical hall.

When he saw the temperature records of each patient, he was stunned.