On the other side, Ethan also came to Professor Callaghan's office at this time.
When there was a knock on the door, Callaghan, who was looking at the photo with nostalgia, quickly put away the photo. A group photo of a man and a woman can be seen vaguely in the photo.
"Come in!" He sorted out his expression and said.
"Professor Callaghan, it's me!" Ethan entered the door and greeted him.
"It's you, sit." He stretched out his hand and motioned Ethan to sit opposite.
After Ethan sat down, Professor Callaghan continued to ask, "It's so late, why don't you go back to rest?"
"Oh, I'm asking the professor if you have any relevant information." Ethan stated the purpose of his trip.
"So impatient... Let's talk about your understanding of space first." He sat on the office chair and leaned back in a gesture of listening intently.
"...Space is a form of material objective existence opposite to time, but the two are inseparable.
According to the Big Bang Theory, after the universe exploded from a singularity, the state of the universe was split from the initial "one", resulting in different forms of existence, motion states and other differences. The measurement of the positional difference between objects is called " space", and the change in position is measured by "time". Space is represented by length, width, height, and size. Usually refers to the four directions (direction) up and down.
Space includes cosmic space, cyberspace, ideological space, digital space, physical space, etc., all of which belong to the category of space. In geography and astronomy, it refers to a part of the earth's surface, which is divided into absolute space and relative space. Space is made up of different lines, lines make up different shapes, and within the lines is space.
Space is a relative... . " Ethan finished these words in a calm tone.
Callaghan nodded, "It looks like you have done a good job in basic skills."
"Then, let's talk about the relationship between time and space." He continued to ask.
"Okay...I'll take Miller as an example. On Miller's planet, an hour is equal to seven years on Earth, and if that's the case, in mythology, even if Cooper tried his best to get back, when he got back When he was on Earth, his daughter Murphy was already very old, and this is time asymmetry." Ethan took the time and space between Miller and the Earth as an example.
At this moment, Professor Callaghan suddenly fell silent and said to himself, "...Yeah, why didn't I think of it!"
However, he still couldn't believe it in his heart, because it was a conjecture after all, and none of it had been confirmed by experiments.
Afterwards, Callaghan calmed down and looked at Ethan with complicated eyes.
"You study physical space!"
"Mathematical space has also been studied."
...
The two kept talking for a while, until Tadashi knocked on the door and brought them back to reality.
After this conversation, Callaghan's eyes were much brighter than before.
Before leaving, he said to Ethan, "Go back to rest first. I will give you the materials tomorrow. This is a difficult study, and it may cost you your whole life. Do you insist on studying?"
"I already have these realizations." Ethan nodded seriously.
"Well, you come to me tomorrow. For some reason, I can't continue my research. I will give you my previous information, and it will be up to you in the future." He got up and came to the door, then turned around and motioned go out.
"No problem." Ethan also followed.
...
Before the science and technology exhibition, Ethan would ask Professor Callaghan questions every day, and he was completely immersed in his studies.
On this day, he was looking at the information in his hand by himself.
At this moment, someone next to me came over.
"Ward, are you busy?" Tadashi asked cautiously, as if something happened.
"No, I was just looking at the materials, are you okay?" Ethan closed the materials and asked suspiciously.
"Tomorrow is the science and technology exhibition, do you want to go and see it together?" He looked at Ethan, looking like he hoped he would go.
"Science and technology exhibition, it shouldn't have anything to do with us... Oh, it's your brother." Ethan, who was talking, suddenly thought of something and pointed at him.
"I don't have an experiment tomorrow, so pull me along when that time comes."
"That's great, we'll be there on time tomorrow. Let's cheer for Hiro together." He was obviously very happy when Ethan agreed.
"Then I won't disturb you. I'll go first. Bye." After that, he left the room, probably to invite others.
"Brain-computer interaction, micro-robots, is another good black technology!" Thinking of the technology developed by Hiro, Ethan felt more excited.
...
The next day, Ethan followed the three of Go Go, Honey Lemon, Wasabi to the technology exhibition hall by car.
Tadashi is at home and will arrive with his younger brother when the time comes.
And Fred also has something to do. He will follow his father and take the Fire rob robot to the scene to sign a contract.
Krei, the boss of Krei Technology will also attend the exhibition.
Fred's father's business is obviously not about technology, but Krei Technology is a technology giant in San Francsokyo, and cooperation can win-win for both parties.
Today's technology exhibition is a good thing.
Wasabi was driving the car, Ethan sat in the co-pilot, and the other two ladies sat in the back seat.
He drives very steadily and strictly follows traffic regulations at every step.
Go Go prefers the fast-paced, so she's sitting in the back seat with her arms crossed and her expression is very unhappy.
She wanted to take over the driving right from the beginning, but was firmly rejected by the other two. Looking at the faces of the two, it was obvious that they had experienced something.
...
Soon, several people found a parking space and came to the entrance of the exhibition hall one after another, waiting for the arrival of others.
First came Tadashi, who was riding an electric bike with his younger brother, and then Fred, who was riding in a van with a box car.
Two people got out of the car, one big and one small. The one who looked similar to him should be Fred's father.
[Fred's father ~ ]
He pointed to Ethan and the others who were waiting, and then ran over alone.
"Hey, did I keep you waiting?" He walked up to the crowd and said hello.
"What is in it?" Teddy asked curiously, pointing to the truck in the distance.
"I brought Fire rob, my father wants to cooperate with Krei Technology."
"Then I'm going to make a fortune!" Ethan joked.
"You can't imagine how rich this partnership will be." Fred bumped his fists.
"The science and technology exhibition is about to start. Let's go in quickly. Today is Hiro's first show." Wasabi said excitedly, hugging Hiro's neck.
"Yes!, let's go!"
A few people pushed the trash can and followed. Inside are miniature robots made by Hiro.
...
Ethan followed the crowd pushing the trash can and walked on the sidewalk. Look at the dazzling array of inventions around.
"Don't be nervous, Hiro." Tadashi pushed the cart and said to Hiro next to him.
"Nervous? Are you talking to a robotic competitor?" Hiro raised his head to cover up.
"He's still nervous!" Go Go mercilessly exposed his cover up.
"Oh, don't be nervous, little guy."
"I'm fine..."
"Your work is great, don't you think? Go Go."
"Come on, talk less!" she said coldly.
"...I'm fine!" Hiro whimpered to himself.
Everyone stopped and waited.
With a blank eye, he saw that Professor Callaghan was also present, and he was specially invited.
A special stage was set up in front of the science and technology exhibition hall, and everyone had to go up and show their works.
"The next member of the exhibition, Mr.Hiro Hamada. Please come on stage." A notice came from the exhibition.
"Oh, great, it's your turn."
"Come on, don't screw it up."
"Come on, let's take a group photo!" Honey Lemon was excited as always, and took a group photo for everyone.
"OK, I'll go first." As he was about to take the stage, he seemed a little nervous.
Hiro shyly asked for a microphone, and came to the stage slowly.
Looking at the crowd below, for the first time facing so many people, he swallowed nervously.
Because the microphone was a little too close, it made a harsh, sharp sound.
"Hello everyone, I'm Hiro... I've made some cool inventions that I think are cool. I hope you like it."
Having said that, he put on a headband and took out a micro-robot from his pocket.
"This is a micro-bot..." The robot was driven for a moment, and then there was no next move, he seems nervous.
Below, Tadashi encouraged him.
'Take a deep breath~' He put his hands on his chest and lifted them up and whispered to Hiro.
With Tadashi's encouragement, he took a deep breath, gathered up his courage, and continued with the microbot.
"It looks very insignificant, but when it joins with its partners..." Then, the micro-bots in the trash can swarmed out and passed through the flow of people.
Then they all came to the stage like an ant.
"...The next step becomes interesting." After letting go, his tone also became more confident.
The growing scene attracted the attention of others. Curiosity made them step over.
"These micro-bots are controlled by neurotransmission sensors..." As he said, he took off the controller he was wearing, and the micro-robots next to him were scattered all over the place.
Put it back on, and the micro-bot reassembled again.
"What I want them to do..." The square transformed into a palm and greeted below. "Is what will they do!"
Krei, who was talking to Fred's father, was also attracted.
[Alistair Krei ~ ]
Soon, the entire audience at the venue was attracted.
The rest of the time is for Hiro's solo show.
Looking at Hiro's display, Ethan inexplicably thought of the whistle arrow of Yondu, the star hunter in Marvel. The control methods of the two are similar.
...
After Ethan's exhibition ended, Krei came to him with a smile on his face.
After Krei expressed his intentions, Hiro was very excited for a while, but Professor Callaghan suddenly appeared at this time.
Inside and out, they are saying that Krei is a black-hearted businessman who does not respect scientific research and technology.
Hiro was obviously still more convinced of Professor Callaghan, so he rejected Krei's condition.
There was no other way, Krei, who was defeated in this matter, could only leave with an ugly face.