But no matter which of these types of levitation, it can't get rid of its limitations, that is, it can only be passive levitation!

Take electromagnetic levitation as an example, its main principle is to use the eddy current generated by high-frequency electromagnetic fields on the metal surface to achieve the suspension of metal balls.

So if I want to be free to levitate in the air, I must fully cover the earth with a layer of steel, and then electrify to generate high-frequency electromagnetic fields, so it can only be suspended up to 4 cm, this technology you want to float a little higher can only build a higher bridge, the bridge is built high, it can float high, because it is always higher than the bridge 4 cm, but it can only float back and forth within the frame, for the street lamp that wants to fly freely in the air, this technology is obviously not suitable.

Let's talk about anti-gravity levitation, which is the most common technology in all sci-fi works. But this conceptual technology is mainly produced for large vehicles and ships, and is produced for medium-altitude, high-altitude, ultra-high-altitude and even spaceships above 1000 meters, so we have no way to do it in the low-altitude field and towards the low-altitude domain within 1000 meters?

Yes, that is, anti-gravitational levitation, theoretically it can freely shuttle in ultra-low-altitude, low-altitude and even medium-altitude airspace within the range of 2000 meters, but due to material reasons, we can only let it shuttle freely in ultra-low-altitude airspace........ Well, these are the three technical conferences of our Donglin Group! Thank you for your presence and attention!

Liu Xiang spent more than half an hour talking about these three techniques and turned around and left, not that he didn't want to stay here for a while, but that he couldn't, and he would be exposed after a while, because there were already his supporters holding flowers and squeezing towards the front of the stage outside the venue.

And just after he turned around and left, on the top of a building 1,700 meters away from Donglin Square, there was a guy in camouflage clothes who had just laid down and had not yet adjusted, and Liu Xiang, his target in the scope, had already turned around and walked out of the press platform.

"FUCK!damn it, it's too late!TMD can't we move the factory closer to this" Then the guy put away his gun, disguised himself, and headed for the fire escape leading to the roof!

......

When Liu Xiang's back was lost, the host and Wu Shanshan came to the stage again, "Thank you! Please keep order, and now enter the reporter's question session." The moderator announced.

Wu Shanshan on the stage was the first to click on the female reporter who had been raising her hand at the beginning, and the reporter immediately stood up, held the microphone and said: "Hello Mr. Wu! I am a reporter from 'Penguin News'. May I ask Mr. Wu, when will your company's suspended street lamp be fully listed? What do you think of the impact of several technologies contained in it on the same industry?"

"The company has signed a nationwide agreement with the government to replace the suspended street lights, starting tomorrow in some first-tier cities will begin to replace, as for the impact you said on the same industry, I don't think there is any need to worry, this is a big cake, can make everyone eat a big cake, because everyone knows our consistent conditions of cooperation, so if they did not grasp this opportunity to cause their business damage, can not blame us, can only blame themselves for not having the courage to accept change or not ready for changeWu Shanshan replied without being arrogant or humble!

"Hello Mr. Wu! I am a reporter from 'Dahe News'. Judging from the anti-gravity levitation technology released by your company, is your company considering entering the field of traffic operation?"

"Due to the limitations of materials, the company's current technology has not been able to develop the technology of low-altitude traffic operation, but we Donglin will work hard in this direction" Wu Shanshan just finished speaking, and the host ordered another person!

"Hello Mr. Wu, I am a reporter from 'NetEase News', will you monopolize the cake in the field of traffic operation in the future?"

"Haha! Our Donglin Science and Technology Group is a science and technology company, we are only engaged in technology research and development and application development, and we are engaged in part-time industry, and do not engage in market monopoly." As soon as Wu Shanshan finished speaking, a foreign reporter stood up.

"Hello Miss Wu Shanshan! I am a reporter from the Economic Times, does your company intend to introduce investment and listing plans in the near future or in the future?"

"Donglin Technology Group has been operating healthily from the beginning, so we are not short of funds, and we have never considered introducing external capital, and we have no intention of going public for the time being" Next!

"Hello Miss Wu Shanshan! I'm a reporter from the Wall Street Journal, will your company's battery application technology have an impact on the power and energy side?"

"At the beginning, it will definitely have an impact on the power energy economy, but when everyone is sober, they will definitely realize that this impact is just a surface, and the future will drive the rise of the entire power energy economy" Next!

"Hello Miss Wu Shanshan! I'm a reporter from the American Times, how can I solve the impact of the company's battery technology on oil and gas energy?"

"This is a problem that the United Nations and the major oil, gas and energy powers need to solve, and this is not something that we can solve as a technology company, and I don't think the application of these two batteries can pose a threat to the rigid energy source of oil."

"Hello Mr. Wu, I'm a reporter from the 'Kyoto Daily', when will the external licensing of these technologies you released today be held?"

"According to the past practice, it will really start after the end of the press conference, please pay attention to the official website of our group "Next!" for the specific end time.

"Hello Mr. Wu! I am a reporter from 'UC News Network', may I ask which of the two technologies released by your company do you think is more suitable for mobile phone battery applications?"

Our boss has given a perfect explanation of how to apply this question at the press conference: "Next!

"Hello Mr. Wu! I am a reporter from the 'Oriental Times', may I ask Mr. Wu, what is the use of your wireless matrix connection method in the military?"

"This wireless matrix connection method can be used by some military units and secret units, and its security is very high, you see, no one has successfully invaded our street lamp until now," Wu Shanshan pointed to the street lamp that was still flashing the intrusion warning light!

"Hello Miss Wu Shanshan, I am a reporter from the Eagle Country 'Guardian', may I ask ......!

......

After the press conference, Donglin Group, which has been popular in recent times, has become a hot topic of discussion in all aspects.

A number of major news quickly occupied the official websites of the Internet and major media at home and abroad, and a series of various technical data was staggering.

"it, don't say we can catch up with the era of flying in the future."

"Upstairs is concerned, all I think about is when I can order a few phones that don't need to be charged until it breaks completely!"

"Upstairs is really a local tyrant! I just think about when I can have an ultra-low-altitude drone for my girlfriend and let her do outdoor live broadcasts, she will definitely be happy!"