Dad’s Science and Technology Martial Arts Museum

　　 "Competition? Martial arts competition?" Lei Mai asked casually, without any emotional fluctuations due to the identity of the opponent.

　　The reason is very simple. Shi Ming, the president of the Jiangzhou Warrior Association, has been with him for many years and has a very good relationship.

　　Think about the Thunder Veins back then, but the most dazzling genius in Jiangzhou martial arts world!

　　 At that time, Shi Ming was also a very strong genius, and he practiced in the same martial arts hall with Lei Mai.

　　 Therefore, the two people have a very close personal relationship, and Shi Ming often asks Lei Mai for advice, which has benefited a lot.

　　 Until now, Lei Mai is the most respected "big brother" in Shi Ming's heart. During the holidays, he always finds Lei Mai to gather and reminisce about the past.

　　 "It's not a martial arts race, it's just a bicycle race for kids."

　　 Shi Ming smiled and replied: "My three vice presidents also have important things today, so I think about it, and only Lei Ge, you can attend on my behalf!"

　　 "Lei Ge, can you help? Just go to the podium to sit for a morning, it's very relaxing."

　　 After hearing this, Lei Mai hesitated for a moment, and then replied: "Let's do it."

　　 "Thank you, Brother Lei!" Shi Ming on the other end of the phone said repeatedly, "I will send my secretary to pick you up right away!"

"Ok."

　　 Hanging up the phone, Lei Mai quickly calmed his mind, and then thought to himself: "It seems that I can only return to the museum to see the teacher after noon today..."

　　…………

　　 half an hour later.

　　 Yuanhua Street, the gate of Sunny Budokan.

　　 "Closed for one day?"

　　 The three Xu Mangs, who arrived almost at the same time, looked at the sticky note on the door, looked at each other, and then smiled helplessly.

　　 "The teacher is definitely going to play with the younger sister again!"

　　 "It's better to go back to sleep with peace of mind, this teacher of ours is simply a model of not loving Jiangshan and loving girls!"

　　 "Withdrawal, since the teacher decided to close the hall to play with her daughter, then ten cows can't be brought back!"

　　 Soon, after a bit of "Tucao", the three people who knew Chen Xuan's personality did not hesitate to leave.

　　 "A owe!"

　　 At the same moment when the "Tucao" of the three major disciples ended, Chen Xuan, who had just arrived by the Crescent Lake, couldn't help but sneezed.

　　 "It's too windy in the morning? I have a cold? It shouldn't happen..." Chen Xuan muttered secretly with his brows raised slightly, "Then, is someone missing me?"

　　 Chen Xuan, who was muttering while walking, didn't take long before he arrived at the place agreed upon with Science F4-Sunset Pavilion.

　　 "Uh, you four, it won't be all night, right?" Chen Xuan was startled when he saw Science F4 again.

　　 I saw the scientific F4 at this time, all dark circles are deep, which is caused by the deep staying up late at first glance.

　　 "Time is too tight, we didn't close our eyes for two nights, just to get the bike you asked for!"

　　 shook his head, Xiao Qi excited, and then his eyes motioned Chen Xuan to look aside: "Hey, look! Fortunately, it was finally made by us!"

　　 Chen Xuan hurriedly looked sideways, and saw that there was a bicycle with a strange appearance not far away.

　　 What surprised Chen Xuan the most was not its appearance, but that the bicycle stood upright on the ground strangely, without any support, but it was able to maintain its balance!

　　 No matter how the lake breeze blew, there was no way to blow it down.

　　Because of the slight tilt, in a short while, this bike will automatically restore its balance!

　　 "What...what's going on? How can it not fall?" Chen Xuan was very curious.

"This is my design! I have a built-in balance system in the front wheel of the car. The flywheel rotation in the control center can produce a gyro effect and keep the bicycle permanently balanced." In scientific F4, the chubby man suddenly Explained proudly, "So, no matter if it is stationary or fast moving, it will never tip over!"

　　 "Is the balance system installed? Will this car be heavy?" Chen Xuan asked particularly worried.

　　 After all, if the body is too heavy, Qingqing will have a hard time riding, so it will have a big impact on the final result.

　　 "You can try!" A tall and thin man said triumphantly in Science F4.

　　 Seeing the tall and thin man extremely confident, Chen Xuan hurried over to see the weight of the car.

　　 "Why, how can it be so light?"

　　 With a slight effort, Chen Xuan easily picked up the bicycle, and then couldn't help but exclaimed.

　　According to his estimation, the total weight of this car is probably not more than 3 kilograms!

"The main body of the car body is the lightest micro-lattice material in the world today. I made it with a 3D printer in my research center!" The tall and thin man proudly introduced, "As for other fixed connection devices, etc., Hey, those are all made of special titanium alloy!"

　　 "Basically, this is the lightest bicycle in the world!"

　　 After listening to it, Chen Xuan suddenly realized that he admired the science F4 even more.

　　 "This bunch of science houses, really have two chances!"

　　 While sighing in his heart, Chen Xuan carefully observed this strange-looking bicycle ~www.readwn.com~ and finally couldn't help but ask: "How does it look a bit different from other bicycles?"

　　 Of course, this is just Chen Xuan's conservative statement.

　　 Actually, this bike is not just a bit different? That is very different!

　　 The overall body includes front and rear wheels, all of which are very narrow and thin. Everywhere is very smooth and has a strange appearance.

　　 The most peculiar thing is that it doesn’t even have a bicycle chain!

　　 If it hadn’t still had two pedals, Chen Xuan would have doubted whether Science F4 had made an electric car...

When he heard Chen Xuan’s question, Xiao Qi suddenly came to his senses and quickly explained: “The appearance of this car is all a streamlined design that I researched according to ideal aerodynamics! Such a design can maximize Reduce the wind resistance, compared with those bicycles, it saves dozens of grades!"

　　 "I originally wanted to install a device that absorbs wind resistance and transforms it into power, but it was too heavy and cumbersome, so I didn't think about it."

　　 As soon as Xiao Qi's voice fell, Chen Xuan gave a thumbs up to the Science F4, repeatedly admiring: "Cow! You guys are really awesome! I believe Qingqing will get good results on this bike!"

"and many more!"

　　At this time, the last member of Science F4 said anxiously: "Master Chen, I have made a great contribution to this car. Find it quickly, and then praise me!"

　　 "Uh...your contribution? Where is it? I didn't seem to find it!" Chen Xuan frowned slightly.

　　 "Cushion! Under the cushion!" The member replied repeatedly.

　　 Hearing this, Chen Xuan immediately squatted down and raised his eyes to observe the cushion.

　　 I saw a circular groove under the cushion, as if something could be put in.