Datang romantic little landlord

Page 883

Glass blowing was invented by the ancient Egyptians as early as 1000 BC. Later, the Romans learned this technology, and when Western glassware was introduced to China, it was introduced into the Central Plains together.

Li Wangyou was overjoyed when he learned that the craftsmen knew how to make glass. He immediately ordered the craftsmen to blow some glass tubes for him to make thermometers.

Below the glass tube, there is a round sphere.

Pour mercury into the glass tube, and then seal the tube mouth with glass liquid, and a thermometer is completed.

As for measuring the temperature, it is not difficult to mark the temperature on the thermometer.

The boiling water is one hundred degrees, the ice-water mixture is zero degrees, and the middle is divided into one hundred equal parts.

A thermometer that is not a standard but is sufficient to measure an approximate temperature is considered complete.

It was precisely because of the thermometer that Li Wangyou temporarily revised his plan, preparing to popularize the concept of "temperature" in Datang ahead of time.

"Students, we all know that water can be hot or cold, and weather can be cold or hot. But have you ever thought that there are units of measurement for length and weight, but why we can only use warm, hot, and cold for hot and cold? Everything should be expressed in terms of words? Therefore, Taoist ancestors defined the degree of hot and cold, and called it temperature! What I want to teach all students today is temperature!"

Li Wangyou's words fell into the ears of all the students in the academy, but they didn't think much of it.After all, they are still young, have little knowledge, and do not understand the mystery.

But those celebrities and Confucian scholars, high-ranking monks, and hundreds of officials and nobles who were watching were shaken, and their backs were straightened involuntarily...

961 Not bad money

Both "Zhou Li" and "Book of Rites" recorded the system of weights and measures. Qin Shihuang unified the six countries, and it was even more "one law to measure stones and feet, cars on the same track, and books with the same characters", the root of which was to unify weights and measures.

Since ancient times, China's measurement has units such as length, weight, and capacity. Now Li Wangyou has proposed a "temperature" that no one has ever heard of. How can we not make everyone excited?

Especially the high-end monks of Taoism and Buddhism were even more excited.

This is the testament of the immortal family passed down by the Taoist ancestors!

Even though Buddhism and Taoism have different beliefs, it does not prevent them from listening to the "Teachings of the Taoist Father". After all, they are all the laws of the sky, and they are not different from the laws of the Buddha.

After Li Wangyou attracted everyone's interest, he beckoned downwards, and someone brought up some utensils immediately.

Stoves, ice cubes, water basins, etc. are fine, but one of the giant thermometers makes everyone unaware.

This thermometer is nearly one meter high. Li Wangyou specially ordered the craftsmen to blow it out as a teaching aid for teaching.

Although everyone didn't know what the thermometer was, they could tell that it was valuable.

This is of course nonsense, and these "auditors" are not blind.

In the eyes of everyone, such a huge, crystal-like stick-shaped utensil, made of crystal-clear material, can be seen at a glance, it must not be ordinary.

Some people suspect that this is the glaze produced in Daqin, but Daqin's glaze has never been seen so clear.

Some people secretly speculated that it was carved from transparent colorless crystal.

But who has ever seen such a large crystal, and it is unimaginable to carve and polish the crystal to look like this.

Whether it is crystal or colored glaze, they are all treasures that are more expensive than gold.

Even those Taoist Gaozhen and Buddhist eminent monks secretly speculated in their hearts, could this crystal bright stick-shaped utensil be a "treasure" passed down by the Taoist ancestors to the Duke of Fufeng County?

They had even guessed that the temperature Li Wangyou mentioned earlier might have something to do with this treasure.

Li Wangyou didn't let it go, and quickly solved the mystery for everyone.

"All beings, everything in the world can be measured, and heat and cold can also be measured. This thing is passed down by the Taoist ancestors, and it is specially used to measure heat and cold. It is called a thermometer!"

The thermometer Li Wangyou fiddled with is actually just the simplest glass tube thermometer, which uses the principle of thermal expansion and contraction to measure temperature.

Of course, with his knowledge, he can only make this kind of thermometer. Other pointer thermometers, resistance thermometers, gas thermometers, etc., unless there is a real Taoist ancestor, don't even think about it.

"You may ask, why do we need to measure hot and cold, why do we need to measure temperature?"

"Simply put, temperature is life!"

Li Wangyou's words immediately caused an uproar in the crowd, and everyone began to write and record his every word and deed.

Ma Zhou and others simply asked for leave today and came directly to listen to their teacher's lecture.

At this time, Ma Zhou and Yan Liben were not only taking notes carefully, but were even pondering in their hearts that they should record all the teacher's words in a book, and then print them into a book and spread them widely in the world.

Li Wangyou gave a lecture on popular science about temperature for a full quarter of an hour. Only his words echoed in the auditorium and the sound of everyone taking notes.

The temperature in his mouth naturally refers to the Celsius temperature scale used by later generations of China. As for the Fahrenheit temperature scale, the open temperature scale, the Liechtenstein temperature scale, the Rankine temperature scale, etc., Li Wangyou neither understands nor is too lazy to think about it.

In short, to teach nature is to teach yourself to get used to it.

"Well, as I said just now, the human body temperature is about 36 degrees, boiling water is [-] degrees, and the mixture of ice and water is zero degrees."

"Everyone, the heat and cold of all things in the world can be measured. Next, let's do a few small experiments to measure the temperature of these objects. Is it the same as what I said..."

On the podium, Li Wangyou explained the concept of temperature and how to use the thermometer to the teachers and students of the academy as well as the "auditing students", and then used the giant thermometer as a teaching aid to measure various objects in public. Everyone was excited to see it.

After that, he ordered people to distribute many normal-sized thermometers to the teachers and students, and asked them to test them by themselves.

Li Wangyou didn't expect that there would suddenly be more than a thousand "auditors", so the number of thermometers blown by the craftsmen was limited.

In order to satisfy the irrepressible curiosity of these "auditors", Li Wangyou could only ask the teachers and students of the academy to give up a few thermometers and hand them over to these famous scholars to measure the temperature.

The teachers and students of the academy were fine, these famous scholars, eminent monks, and hundreds of officials almost didn't fight for the right to use these thermometers.

"Amitabha, the poor monk got this thermometer first, why bother to fight with the poor monk?"

"This is something passed down by the Taoist ancestors. What qualifications do your Buddhist sects have to compete with the old Taoists?"

"Amitabha, the words of the Taoist priest are different. In front of the Taoist Buddha, we are equal to all living beings. How can there be a difference?"

"Bah! Damn donkey! Stop talking so much nonsense, and quickly hand over the thermometer!"

"The poor monk will not treat you like a bully, how do you treat it?"

In order to snatch the thermometer, several Gaozhen eminent monks, whose combined ages are almost 1000 years old, spat on each other's faces.

Fortunately, they also know that this academy cannot allow them to mess around, so even if they quarrel, their voices are kept extremely low, and there is no possibility of doing anything.

The other famous scholars, officials and dignitaries were not much better. They all lowered their voices and fought for the right to use the thermometer.

There are many "smart people" among the more than a thousand "auditors". After a fierce battle, an old man suddenly stood up, bowed to Li Wangyou and asked, "Dare to ask, sir Can you sell the thermometer to the old man? The old man is willing to pay ten taels of gold to buy it from the husband."

Li Wangyou couldn't help being taken aback when he heard this.

Someone wants to pay twelve taels of gold for a thermometer?

Crazy?