Chapter 2916

"In addition to the seven colors of light that can be seen occasionally, there are also things that can only be seen under special conditions, such as infrared and ultraviolet rays."

After thinking for a moment, Li Xuanwu continued to add: "I just heard about ultraviolet. Under normal circumstances, the stronger the sunlight, the stronger the ultraviolet. Ultraviolet can kill bacteria and strong burning ability. Ordinary people sometimes in the sun, the face is tanned, sunburn is very painful, that is hurt by ultraviolet

"Go on."

Coffin fairy king and others feel very strange, because these are things they have never heard of before.

"It's not just the sunlight. In the void invisible to the naked eye, there are many light waves and electromagnetic waves, just like those invisible forces of law. And these special electromagnetic waves, can transmit information, just like pigeons, from one place to another. This kind of propagation speed is very fast, far faster than that of sound. "

"What about the speed of divine thought?" The coffin fairy suddenly asked coldly.

"I don't know much about this, but according to them, the propagation speed of the mind of people below Yuhua realm is definitely not as fast as that of electromagnetic wave. Maybe only Xianjun Xianwang's teleportation speed can match. What's more, not everyone can achieve immortality and immortality. Electromagnetic waves can be controlled by means of technology that ordinary people can control. "

Li Xuanwu's words surprised the coffin fairy king and others.

"In that case, if you want to send news through this electromagnetic wave, will it not spread all over the fairy city in a blink of an eye?"

"Not bad!"

Li Xuanwu nodded, "based on these, we have built an Internet, a communication network. In this network, all the information can be spread in a very short time. Now this network has been popularized in most parts of the country, that is, the southernmost and northernmost parts of Kyushu, which can spread information to each other in a breathing time. "

"This..." The coffin fairy king and others gasped for air.

"Under this Internet, as long as everyone can access this network, they can use a lot of things. This mobile phone is the access tool. "

Li Xuanwu shook his mobile phone in his hand. "The signal transmitted on the mobile phone is synchronized with the network in real time. Then every owner of a mobile phone has his own information. Using this information, he or she can establish a cooperative relationship with some companies, which is equivalent to establishing a kind of management organization. After the information is provided to them, they will provide some services. For example, when I was shopping in the supermarket just now, I already had an account in my own identity information, and there was money in the account. Of course, the money is a number, and then the shopkeeper's scan, drip is confirmed, and then the company will deduct the corresponding money, and then transfer it to the shopkeeper's account. "

"We can understand the meaning, but isn't it troublesome?" Snow absolute fairy King some don't understand.

"Trouble? No trouble. "

Li Xuanwu shook his head. "In the lower world, this practice has achieved unprecedented success. You don't know that as long as I take this mobile phone, I can travel all over the country. I don't need to bring my wallet. I can buy everything through this mobile phone, no matter how much I spend on food, clothing, basic necessities of life. "

"Ah? It's impossible, isn't it? " The first reaction of Xue Jue Xian Wang and others is impossible.

Li Xuanwu smiles and doesn't explain much. Instead, he goes to a fruit stand on the side of the road, buys some fruits, and then turns on his mobile phone to scan them.

"Shopkeeper, have you received the money?"

"Yes, yes, come again next time!" The shopkeeper said hello with a smile.

Li Xuanwu went to a clothing store again, picked out a suit of clothes, turned on his mobile phone, scanned it, and left directly.

This, snow absolute fairy King etc. don't say a word.

"See?" Li Xuanwu is smiling.

Snow absolute fairy king and others look at each other, they all see the horror in each other's eyes.

"With such a mobile phone, you can travel all over the country, so you can imagine how convenient daily life will be and how developed trade will be." Li Xuanwu said with a smile.

"But in that case, don't you worry about those companies stealing? And don't you lose your cell phone? " The coffin fairy frowned.

"To keep watch? It doesn't exist. It's developed by the government of our country. Others may do things like guarding and stealing, or use them to collect money. But since we can make Kyushu the way it is now, our vision will not be limited to that small pattern. "

Li Xuanwu shook his head lightly and said with a smile: "as for the loss of mobile phone, this kind of thing really happens. But the account information needs to enter a password to view, and it is bound with the host. In order to prevent others from stealing, we also set up a very powerful protection system. At present, it has been popular for about six years, and there is no case of account theft due to the loss of mobile phone. Even if it is stolen, the government will bear the loss, and the money under the account will be paid in full. "

Hear here, snow absolute fairy King etc. already can't speak.

These aspects alone are enough to shock them.After a while, Li Xuanwu came to a teleportation array point and explained: "this teleportation array point is designed by me. At present, Kyushu has established a national teleportation array network. It is divided into five regions, East, West, north, South and middle. In all cities in the same region, each city has a total point of transmission array, which can transmit to each other. That is to say, we are now in the southernmost position of Kyushu. If we want to go to the northernmost Beihe City, we only need to go from this position to the transmission array general point of Nanyan City, then to the transmission array general point of Southern District, then to the transmission array general point of Northern District, and then take the last transmission array to Beihe city in the north. It won't take more than two minutes. "

"What?" The crowd was shocked again.

"I think you can understand what that means, right?" Li Xuanwu said with a smile.

"Gulu!"

The coffin fairy King swallowed his saliva and looked startled. "In the past, there were no teleportation arrays in the major immortal cities, but the teleportation of arrays was very troublesome, and it took several days at the fastest to cross the immortal city. You guys... "

"It saves a lot of time, doesn't it?"

"Good! It only takes two minutes at most to cross the fairyland. If the border is attacked by enemies or animal tides, you can arrive immediately and mobilize people from all over the country. " The more the coffin fairy king said, the more frightened he was.

No wonder the city wall is so low. There is no need to build it high!

Li Xuanwu said with a smile, "more than that, usually the goods transportation all over the country can reach all parts of the country in the shortest time, so as to save the transportation cost as much as possible. If you want to trade with other fairylands around you, you will lose in terms of time, efficiency, price and profit. "