151 leveled a large area of land. The original site was the Chongqing Haichang Caribbean Water World Amusement Park in Nanshan. After the evacuation, this attraction was abandoned, so the base leveled the entire land and paved it with thick black pressure-bearing ballast. As a power system test site for giant machines, when viewed from a high altitude, it is a huge isosceles triangle with a side of one kilometer.
Guren needs to test each limb joint here, and the most direct way is to let it do the second set of national middle school student broadcast gymnastics.
(The effect of Dancing Youth is not as good as The Call of the Times.)
"Really, she is very flexible." Shen Jiang nodded seriously, "In addition, no matter how she moves, our cockpit can always remain stable."
The bipedal walking machine system is the most difficult part to overcome in the power core. Its inherent instability makes its dynamic characteristics extremely complex. I have had some contact with this Phytophthora planta because the automation department has participated in part of the research tasks. , the humanoid engineering team gathered all the experts in the field of control theory and control engineering that could be found in the country, first built a ten-meter-high scale miniature verification machine, and then enlarged it step by step.
"Strong coupling, multi-variable, non-linear." Phytolacca suddenly said.
"what are you saying?"
"The bipedal walking machine system under the control of nervous system connection is the subject of my master's research." Phytolacca turned to look at her, "The reason why this giant robot can walk steadily is because its zero-moment point is always maintained. Within the range of its paws.”
The girl blinked.
Phytolacca smiled: "I'm memorizing my thesis."
"What is the zero moment point?"
"The zero moment point is the ZMP point. The extension line of the resultant vector of gravity, other inertial forces and ground reaction forces on the bipedal robot intersects with the ground. It is under the foot so that the walking machine can walk smoothly. This is the point where all bipedal robots can walk smoothly. The theoretical basis of the walking machine." Shanglu explained, "Of course Honglian is much more complicated than what I said. It is a robot controlled by a supercomputer. It can achieve real-time online gait planning, and can even do broadcast gymnastics by itself. .”
Phytolacca knows more about engineering, and he finally has something to show off.
"She is very smart." Shen Jiang stretched his waist in the zero-gravity buffer, and his body was rotated by the small angular momentum. "It's a pity that she can't think about problems by herself."
Phytolacca grabbed a handle to fix its body, because Honglian was doing a turning movement to test its limbs. It could rotate its slender and elegant waist 360 degrees, which is something humans can't do. In terms of limb movement, Honglian also has an unparalleled advantage over humans, because it is a six-limb movement.
Talking about the advantages of having four arms, Shen Jiang said that she could also build coordinates.
Phytolacca asked what is building coordinates?
So Shen Jiang demonstrated how to establish a huge spatial rectangular coordinate system. Honglian raised one hand straight up, which is the Z axis. The other two hands were opened horizontally and then folded into right angles, like a traffic policeman directing traffic, which is the X axis. Axis and Y axis, this is the advantage of having four arms - the last arm can be used as the timeline icT, or it can be stretched out diagonally as the world line, and it can even perform Galilean or Lorentz transformations!
How to change? Phytolacca asked.
Guren maintained this position and took a big step forward.
Galilean transformation completed. Shen Jiang said.
Phytolacca observed the exterior scene through the bulkhead. He didn’t know where the lenses of this panoramic VR display device were installed, but it did create a transparent effect. The driver staying in the cabin felt as if he was in a giant transparent chamber. Inside the skull, you can see the shoulders and arms on both sides, as well as the chest, abdomen, waist and legs. When Honglian bends down, it’s like falling from a height of fifty meters, and the ground is rushing towards you. It’s more thrilling than a roller coaster. Phytolacca is trembling with fear. , while thinking that designing the human form is the most complex in engineering, but it can also bring the highest degree of freedom and higher-level activity space.
Human beings always want to create things that are similar to their own image, no matter how big or small. The small ones can be said to be copying themselves, and the large ones can be said to be making gods.
This damn Creator plot.
"I've always been wondering, how on earth do you fight against angels?" Phytolacca asked a question he had always wanted to ask.
"Huh?" The girl turned her head, "Fighting with angels?"
"It doesn't sound like an angel is a monster that can stretch out its fists and legs to fight you. How are you going to fight it?" Shanglun asked, "Kill the old master with four arms and punches?"
"You have to have some idea of the four-dimensional space, supervisor." Shen Jiang said.
"I'm just a supervisor. What concept do I have of the four-dimensional space?" Phytolacca said.
"The four-dimensional space we are talking about now is not the Minkowski space-time of the three axes of the Euclidean rectangular coordinate system plus the time axis. It has four spatial coordinate systems, so things in our world must follow them when entering the four-dimensional space. The rules over there." Shen Jiang said, "We all know that conservation of energy can deduce the law of spherical attenuation. Whether it is a force or a field, it must follow the law of spherical attenuation. However, the length of a sphere in three-dimensional space is different from that of a sphere in four-dimensional space. Typically, the surface area of a four-dimensional sphere is much larger, which means that the sphere in four-dimensional space decays faster than in our universe."
Phytolacca seems to understand but not quite.
"You mean the attenuation of energy in the four-dimensional space will be greater during the propagation process?"
"Well... it can be said that not only energy, but also force is the same. All long-range forces - including gravity and electromagnetic force, attenuate more in four-dimensional space." Shen Jiang nodded, "Have you studied Newton? The second law, Newton stipulates that in our universe, force is inversely proportional to the square of distance, right? The denominator in the formula for universal gravitation is r^2."
Phytolacca nodded.
"But this law does not hold in four-dimensional space. They are inverse cubic laws, which means that force is inversely proportional to the cube of distance." Shen Jiang said, "The action distance of all long-range forces will change after entering four-dimensional space, including electromagnetic Force, and electromagnetic force is the main basic force that makes up our material world, you--"
Shen Jiang poked Shang Lu's chest.
"I--"
She pointed at herself again.
"As well as everything around us, the force that maintains the stability of their basic structure will fall apart the moment it enters the four-dimensional space. This is why human conventional weapons are completely ineffective against angels. Everything will shatter into elementary particles the moment it touches it. .”
"Then how did we eliminate it?" Shanglun's eyes widened.
"Secret weapon." Shen Jiang hummed.
"What is the secret weapon of my aunt, my sister, my ancestors? Just tell me -" Shanglu decisively abandoned his dignity.
"Who is your aunt?" Shen Jiang was disgusted. She turned her head away, and then turned back again after a while. "To tell you the truth, I don't know what it is. It is a real top secret. Every time it is shipped from the rear. Come here, seal it tightly, and only hoist it into Honglian’s weapon system storage warehouse before action."
The girl didn't look like she was joking.
"Mr. Ji should know. If you have the ability, ask him and see if he will tell you."
As soon as Shang Lu looked at Old Man Si Ji's face, he knew that there was no chance.
"I don't know, don't ask me."
Old Man Ji's voice sounded in the earphones.
It's really no use.
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"Ah - I have a headache, so annoying." Shen Jiang suddenly knocked on the helmet visor and frowned, "It's starting again."
"What's wrong?" Shanglu slowly floated over to support her, "Teacher Ji, Shen Jiang said she has a headache."
"Have you taken your medicine?" Old Man Ji asked.
"Eat." Shen Jiang said.
"There will be no trouble if you eat it." Old Man Ji said one after another, "77% of the test of the power system of the giant machine body has been completed. You can take a rest."
"IM so tired."
The girl pushed Phytolacca away, then curled up, closed her eyelids, and fell asleep.
Shang Lu was speechless, the speed at which he fell asleep was so amazing.
"Teacher Ji, she...she fell asleep."
"Oh, I know."
Shen Jiang curled up into a small ball in the light blue zero-gravity buffer. The breathing and data transmission lines were suspended there like a baby's umbilical cord. Phytolacca did not dare to touch her. She just felt incredible. Going back three days, he I definitely never imagined that I would be in a fifty-meter-high light blue transparent liquid ball at this moment, with a peacefully sleeping girl floating in front of me.
