"The King of Yan is not in the mansion, so he has gone to the beach." Luo Yong's passion was extinguished by Yan Yan's words. He asked foolishly, "I wonder what Your Highness is doing at the beach?"

"It seems like you are studying what temperature? You have been to Tianjin Port for seven days." Yan Yan stroked his beard, with an expression of knowing the truth but not knowing why, and said uncertainly, "Your Highness has always been following his heart, and his subordinates don't know."

"I'll go to the beach right away." Luo Yong said that and was about to set off, but he still did not forget to notify Sima Ji of the good news.

"Let's go! Your Highness should be easy to find!" Yan Yan shouted at Luo Yong's back, "Since you must go, tell the King of Yan that Mrs. Ha has always vomited these days. The doctor said that it seemed that there was happiness. It was just that the two happiness was coming, and there might be rewards."

Yan Yan knew that Sima Ji valued Luo Yong very much, and that he would use it in the future if nothing unexpected happened, so he was willing to sell it to him.

Sima Ji faced the sea and looked at the big pot not far away from time to time. There were broken glass beside him. There were several people under the big pot set up to add firewood. The water in the pot was boiling, and it seemed that he was about to prepare for a picnic.

But this is not the case. It is true that the King of Yan had good teeth, but it did not reach the point where he could eat broken glass raw. What's more, there was mercury inside, which was no less dangerous than taking Wushi Powder all year round. Further away, there was a group of Persians with high noses and deep noses, who were burning glass and looked very busy.

"Your Highness, the mercury has been poured, and the bottom of the glass tube has been put into the water. Do you want to go and see it yourself?" Liang Cheng, a new guard in the royal palace, ran over happily, with a dog-legged expression on his face, looking very excited. Although he didn't understand what everyone was doing these days.

"Boil it first, don't worry, my king's scale has been calculated. Once it boils, I will use grease to block the hole on it. I will say something else, that's called glass." Sima Ji had a cold face. What he hated the most was the conflict between other people's names and his own names, because in his subconscious, he felt that this was the ancient people who wanted to assimilate themselves.

This is absolutely intolerable. Only others follow his words and will never follow others' words.

After the glass was produced, Sima Ji's first thought was a thermometer. He didn't want to live a chaotic life. So when Sima Ji was paralyzed in the mansion, the most important thing he did every day was to take the calculated one-meter sword and measure it everywhere, measure whatever he saw, measure it from his fingernails, thumbs, and all the way to his height. Finally, he made the protractor and corrected the length, because a semicircle of the protractor was 180 degrees, cut it into a ninety-degree angle, and then cut it into a forty-five degrees angle, and finally determined a millimeter before the length was corrected.

Now it is still a little bit by bit, hoping to make a thermometer. The thermometer from the Jin Dynasty was passed down from the previous dynasty. It is said that it originated from the Qin Dynasty. In the pre-Qin period, a bottle that can observe temperature changes appeared in China: the bottle is filled with water. If the water freezes, the temperature will be lower than zero and enters cold winter; if the ice melts, the temperature will rise. This bottle is called an ice bottle, also known as a water bottle, and it can be said to be the most primitive thermometer in China.

There was a saying in the Spring and Autumn Period of Lu Family: "When you see the ice of the bottle of water, you will know the coldness of the world and the hiddenness of fish and turtles."

There was also a thermometer in Greece in the meantime. The device was designed consisting of a tube filled with air, whose end was submerged in a small bowl of water. When the thermometer came into contact with a hot or cold surface, the air would expand or contract, causing the air-water interface to fluctuate. The inventor of this thermometer was Hero, the inventor of the steam rotary ball used by King Yan to boil water.

However, this thermometer can only play a better role than nothing. The too vague thermometer has no effect on Sima Ji. Now he knows that water freezing is zero degrees and the boiling point is one hundred degrees. Of course, this time it changes with the height of the altitude, so this time he came to the beach and tested at zero altitude.

Put the temperature in boiling water and connect the scale to determine a hundred degrees. The current results are very significant, with broken glass on the ground.

Now it has reached the final stage. At the beginning, the thing Sima Ji used to test the temperature was not mercury, but white wine, but white wine had no color. After a while, King Yan almost turned himself into a needle hole, and finally changed it to mercury. The biggest advantage of mercury is that it has color and can be seen very clearly.

But it is summer, and the water will not freeze, so there is no way to use the measured thermometer to test the low temperature to correct it. But it doesn’t matter. Sima Ji knew that humans are constant temperature animals. According to years of experience in measuring body temperature with colds, the temperature of healthy people under their armpits is 37 degrees. Even if this temperature is reduced, if the thermometer is made, the boiling water is 100 degrees. If you find a few more people to test that the temperature deviation of the armpits is not large, it can basically be considered successful.

However, the thermometers are definitely not very convenient now, half a meter long, and the capsule used to hold mercury under the thermometer is even more huge. Sima Ji looked at it for a long time and always felt that it looked like a child's body was something that was not suitable for children.

After a while, another guard came to report the message. He walked to the side of the pot step by step and looked at the values ​​inside.

"Seal well, measure your body temperature after cooling." Sima Ji looked at it for a while and felt that this time it should be a little problem. The glass tubes that have been smashed in the past few days have calculated a hundred, and they should be close to the correct value. It should be no problem before the industrial revolution.

"Your Highness's mind is really unpredictable." Liang Cheng looked at it for a long time, and when he saw Sima Ji's face was accomplished, he seized the opportunity to speak, and his Highness King Yan was wise and magical.

Sima Ji tilted his head and looked at Liang Cheng, recalling the seriousness, "When I was in the southern expedition, there was a subordinate and a general named Tang Chen. You and him should have a very common language. If you have the opportunity in the future, you can meet and discuss with each other."

"If a general can know him, it is an honor for his subordinates." Liang Cheng beat the snake and followed the stick. He didn't know what Sima Ji was talking about, but he thought he was really praising him.

Thermometer is of course useful. For example, it can be used in the vegetable greenhouse in Yanwang Mansion. The annual output is so low that it is definitely related to not knowing the exact temperature. If you don’t know the temperature, you can’t control it. As a result, if you accidentally, you have to eat pickles again in winter.

Just as he was about to announce his victory from one victory to another and was about to return home, Luo Yong finally did not lose his second time and happily told Sima Ji about the completion of the canal.
Chapter completed!