Huang Xiao's question, no one raised their hand anymore.

The main reason is that electricity has been the most mysterious place since ancient times, and people know very little about it, and most of it is attributed to myths and legends.

Huang Xiao saw that no one answered, and he didn't care.

Like some other static electricity phenomena, because there is no intuitive lightning to observe, people will not associate with electricity.

For example, as early as 585 B.C., the ancient Greek philosopher Celis had discovered that rubbed amber could attract small and light objects such as broken grass.

In China, Wang Chong in the Eastern Han Dynasty mentioned in the book "On Balance" and other issues such as "Dunmu and mustard".

The so-called Dunmu is amber, and mustard means to attract seed vegetables, that is, rubbing amber can attract light and small objects.

But people at the time did not know how this worked, and even believed that it was due to the uniqueness of amber.

It was not until 25 years ago (1600) that Gilbert, the royal physician of Queen Elizabeth I of England, linked electricity and magnetism and wrote "On Magnets", which comprehensively expounded the connection between electricity and magnetism, and pointed out that this phenomenon is not unique to amber.

For example, glass, gemstones, etc. can be friction to produce static electricity, and create electrostatic electroscopes, which in the following century, this is the best instrument for detecting electrostatic charges.

Huang Xiao took more than a dozen glass rods and walked off the podium.

Huang Ling was given one, and some were also distributed to other children.

Seeing that Xiaohua couldn't stop beckoning, he gave the last one to Xiaohua.

"Electricity is everywhere in life, and we all carry electricity on us, but it's so faint that it's hard for us to notice!"

"Now let's do a little experiment."

Huang Xiao said and took a glass rod and rubbed it on his hair a few times.

I also asked my classmates to do the same.

Then some shredded paper was torn.

Everyone was surprised to find that the shredded paper was actually attracted by the glass rod.

And after a large piece of paper, the shredded paper will also move with the movement of the glass rod underneath!

The people at the scene were stunned!

After trial and error, it quieted down.

"And what's the use of electricity?"

Huang Xiao asked and answered: "As long as we master electricity, we can achieve the same magical power as Shunfeng Ear!" No matter where you are, you can connect with friends and family from afar! ”

Zhang Yan's heart moved, and secretly thought, Huang Xiao's mobile phone is this function!

Huang Xiao continued: "We can also use it to drive machinery, make more sophisticated tools and daily necessities, and can also be used for lighting, heating and other endless uses!" ”

Everyone listened to it fascinated, thinking about the scene described by Huang Xiao, and they were even more fascinated!

"Now, I'm going to demonstrate the generation and application of electricity on the spot!"

Huang Xiao said, let people go and get the refined salt, and poured 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 experiment with this simplest use! ”

Everyone looked at Huang Xiao excitedly!

I saw Huang Xiao put two large metal pieces into the difficult salt water respectively!

Huang Xiao asked the curtains to be closed, and the room suddenly became dark.

Suddenly!

On the podium, a dazzling light flashed out!

Everyone stood up in horror!

Huang Xiao stood behind the light and stood with a smile.

The white light shone on his handsome face, and there was a different kind of mystery.

Zhang Lizhen and the other women all saw that their eyes were straight.

"The young master is so handsome!" Yueniang muttered.

Zhang Yan chuckled lightly, and said in her heart: "This person is pretending again." ”

The people below were all shocked by Huang Xiao!

Huang Xiao asked the curtains to be removed.

The room is bright again!

Now everyone could see it clearly, and they saw that the glowing thing was a ball made of glass, and the silk threads in it were still shining, although not as dazzling as in the darkness, but the luminosity was also excellent.

Huang Xiao gave up the podium and let everyone visit.

"It's amazing! Huang Xiao, you are so amazing, I admire you so much! ”

Zhang Lizhen flashed her big eyes, looked at Huang Xiao with admiration, and whispered with a red face.

Huang Xiao smiled faintly.

After ten minutes, basically everyone watched it again.

"There are many more 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, that's all for today's class, and I'm looking forward to seeing each other again next time! ”

There was thunderous applause at the scene, and everyone respectfully watched Huang Xiao and Zhang Yan leave.

As for the experimental equipment, it was naturally taken away by Wang Zheng and Song Yingxing, who were also the vice presidents of the college.

Shi Kefa's excitement today was really beyond words, he immediately sat on the desk and began to write!

Song Yingxing and Wang Zheng went to find Huang Xiao again.

Huang Xiao also knew that the two would come over, so he asked Zhang Yan and the others to go to rest first, waiting for the two of them.

"Sit down!"

The two of them sat down.

Huang Xiao asked: "How is the locomotive developed?" What is the progress of the railroad construction drawings and steamships I have given? ”

Wang Zheng said: "With the detailed information given by Mr., as well as various supporting lathes and tools, everything is going smoothly!" The ironclad ship was built by more than 5,000 craftsmen day and night, and it will be launched in less than ten days, and the locomotive has already been built, and it can be tested on the road as long as the railway construction is completed!

These are all the work of the gentleman! If it weren't for the time constraints between me and Chang Gung, maybe we could have done better, please don't blame me, sir! ”

Song Yingxing also said: "After training, the apprentices are making excellent progress!" There are so many that you can be on your own! You will never miss the arrangement of the gentleman. ”

Huang Xiao nodded and said, "That's good, it's really hard for the two of you!" This progress is already a big surprise to me, the two are really hard work, I have been looking for talents in Daming, when the time comes, the two will be easier, the two of them are great to Daming, I, don't say it! ”

He said with a long sigh and said: "These are Your Majesty's obsessions, he wants to take our Daming train to tour the mountains and rivers of Daming, he wants to take our Daming steam ship to travel all over the world, we must achieve this wish for Your Majesty!" ”

Speaking of this, he recalled the bits and pieces between him and Zhu Youxiao, and couldn't help but burst into tears.

Such a little emperor with a true temperament, even if he is a little imperfect, it cannot be denied that he is a good emperor!

Now because of his Huang Xiao, he is lying in a strange afterlife.

Thinking of this, Huang Xiao was sad, with various emotions such as self-blame.

made Huang Xiao unable to help himself for a while.

There are some things that can only be taken one step at a time.

I don't know if I'll be able to wake up, how long? Months, years, ten years, eight years......

Song Yingxing and Wang Zheng also burst into tears.

"How is Your Majesty now?" Wang Zheng asked with tears in his eyes.

Huang Xiao wiped his tears and stopped them.

He comforted: "Everything is fine, everyone don't need to worry, maybe soon, Your Majesty will return!" ”

Both of them were relieved.

Song Yingxing said emotionally: "Mr. turned the tide and saved His Majesty and Daming at a critical moment!" Our gratitude and reverence to Mr. ...... Now that the big event has been decided, please take care of your precious body! Don't be too sad! We are willing to share all affairs for Mr. ”