No one raised their hands anymore regarding Huang Xiao’s question.
Mainly because electricity has been the most mysterious thing since ancient times. People know very little about it, and most of it is attributed to myths and legends.
Huang Xiao saw no one answered and didn't care.
Like some other electrostatic phenomena, because there is no intuitive lightning to observe, people don't think of it in terms of electricity.
For example, as early as 585 BC, the ancient Greek philosopher Seles had discovered that rubbed amber could attract small objects such as broken grass.
Wang Chong of our country during the Eastern Han Dynasty mentioned issues such as "Dun Mo Diao Ke" in his book "Lun Heng".
The so-called dunmu means amber, and the mustard means attracting seed vegetables. It means that rubbing amber can attract light and small objects.
But people at the time didn't know the principle, and even thought it was due to the uniqueness of amber.
It was not until 25 years ago (1600) that Gilbert, the royal physician to Queen Elizabeth I of England, connected electricity and magnetism and wrote "On Magnets", which comprehensively explained the connection between electricity and magnetism and pointed out that this This phenomenon is not unique to amber.
For example, glass, gemstones, etc. can be rubbed to generate static electricity, and an electrostatic electroscope is created. In the next century, this was the best instrument for detecting electrostatic charges.
Huang Xiao took more than ten glass rods and walked off the podium.
I gave one to Huang Ling and distributed some to other children.
Seeing Xiaohua, she kept waving and gave the last one to Xiaohua.
"Electricity is everywhere in life. We all carry electricity, but it is so weak that it is difficult for us to detect it!"
"Now let's do a little experiment."
Huang Xiao said, taking a glass rod and rubbing it on his hair a few times.
The students were also asked to follow suit.
Then he tore some scraps of paper.
Everyone was surprised to find that the shredded paper was actually attracted to the glass rod.
And after being separated by a large piece of paper, these pieces of paper will also move with the movement of the glass rod underneath!
Everyone at the scene was shocked!
After repeated trials, it calmed down.
"What's the use of electricity?"
Huang Xiao asked and answered himself: "As long as we have mastered electricity, we can achieve magical powers like Shunfeng Er! No matter where you are, you can contact your friends and family far away!"
Zhang Yan's heart moved, and she thought to herself, this is what Huang Xiao's phone does!
Huang Xiao continued: "We can also use it to drive machinery to create more sophisticated tools and daily necessities. It can also be used for lighting, heating and other endless purposes!"
Everyone was mesmerized when they heard it, and they were even more fascinated when they thought about the scene described by Huang Xiao!
"Now, I will demonstrate the generation and application of electricity live!"
Huang Xiao said, and asked someone to get the refined salt and pour it into the wooden basin!
The test equipment was placed on the podium one by one.
Everyone is curious.
Can electricity be made from salt?
"Didn't I just say that electricity can be used for lighting? Let's test this simplest use!"
Everyone looked at Huang Xiao excitedly!
I saw Huang Xiao put two large metal pieces into the high-difficulty salt water!
Huang Xiao asked someone to close the curtains, and the room suddenly became dark.
Sudden!
On the podium, a dazzling light flashed out!
Everyone stood up in shock!
Huang Xiao stood behind the light, smiling.
The white light shone on his handsome face, giving him a different kind of mystery.
Zhang Lizhen and other women were all stunned by the sight.
"Young master is so handsome!" Yue Niang murmured.
Zhang Yan chuckled and said in her heart: "This person is pretending again."
Everyone below was shocked by Huang Xiao!
Huang Xiao asked someone to remove the curtains.
The room is bright again!
Now everyone can see clearly. The luminous thing is a round ball made of glass. The silk threads inside are still shining. Although it is not as dazzling and obvious as in the dark, the luminosity is also very good.
Huang Xiao gave up the podium and allowed everyone to visit.
"It's so amazing! Huang Xiao, you are so amazing, I admire you so much!"
Zhang Lizhen's big eyes flashed, she looked at Huang Xiao with admiration, she blushed and whispered.
Huang Xiao smiled faintly.
After ten minutes, basically everyone had watched it again.
"There are still many mysteries in the world, waiting for us to discover and explore! Students, I hope you can study harder and use the knowledge you have learned to benefit the people! Okay, today's class will start with We’re here, I look forward to seeing you again next time!”
Thunderous applause erupted from the scene, and everyone respectfully watched Huang Xiao and Zhang Yan leave.
As for the experimental equipment, Wang Zheng and Song Yingxing, who are also the vice presidents of the college, naturally took it away.
Shi Kefa's excitement today was beyond words. He immediately sat down on the desk and started writing!
Song Yingxing and Wang Zheng went to look for Huang Xiao together.
Huang Xiao also knew that the two of them would come, so he asked Zhang Yan and others to rest first and wait for the two of them.
"sit down!"
The two sat down.
Huang Xiao asked: "How is the development of the locomotive? How is the progress of the railway construction drawings and steamships I gave you?"
Wang Zhengdao: "With the detailed information given by Mr. and various supporting lathes and tools, everything is going smoothly! With more than 5,000 craftsmen working day and night to build the armored ship, it will be launched in less than ten days. As for the locomotive, it has already been built. The construction is completed, and only after the railway construction is completed, it can be tested on the road!
These are all the work of Mr. If Chang Geng and I were not pressed for time, perhaps we could have done better, sir, please don’t blame me! "
Song Yingxing also said: "After training, the apprentices have made excellent progress! Many of them are able to stand alone! They will never miss the master's arrangements."
Huang Xiao nodded and said: "That's good, thank you for your hard work! This progress is beyond my expectation. You two have really worked hard and made great contributions. I have already been looking for talents in this field in Ming Dynasty. By then, , you two should be more relaxed, you two have made great contributions to the Ming Dynasty, I don’t mind telling you!"
He sighed and said: "These are His Majesty's obsessions. He wants to take our Ming Dynasty train to visit the mountains and rivers of Ming Dynasty. He wants to take our Ming Dynasty steamboat to travel all over the world. We must fulfill this wish for His Majesty." !”
Speaking of this, he recalled every moment between him and Zhu Youxiao, and couldn't help crying.
Such a true-hearted little emperor, even if he is a little imperfect, cannot deny that he is a good emperor!
Now, because of Huang Xiao, he is living in a strange future life.
Thinking of this, Huang Xiao felt sad, filled with various emotions such as self-blame.
Huang Xiao couldn't help himself for a while.
Some things can only be taken one step at a time.
I don’t know if I can wake up again, and how long it will take? Months, years, ten years, eight years...
Song Yingxing and Wang Zheng also burst into tears.
"How is your Majesty doing now?" Wang Zheng asked with tears in his eyes.
Huang Xiao wiped her tears and stopped them.
He comforted and said: "Everything is fine. There is no need to worry. Maybe His Majesty will return soon!"
Both of them felt relieved.
Song Yingxing said emotionally: "Sir, you turned the tide and saved His Majesty in a critical moment, and also saved the Ming Dynasty! We are grateful and respectful to you... Now that the important matter has been decided, please take care of yourself! Don't be too exaggerated." Sad! We are willing to share all matters with you, sir!"
