Volume 3: Dance of the Aurora Chapter 19 Soft Landing
"Any further instructions?"
Ai Bishui sat cross-legged on the invisible floor, staring at the city thoughtfully, making the spaceship wait a little impatient.
"Fly around the city? Don't speed up so fast this time. I felt a little uncomfortable just now..."
An acceleration of 5G is probably the entry level for astronauts, but it is very dangerous for an ordinary girl and may even be fatal.
“…”
In the early days of metal civilization, when performing time manipulation, they would often deliberately fly around black holes several times, using gravitational time dilation to perform one-way time acceleration. In this process, pilots usually had to withstand several thousand Gs of centripetal acceleration.
One-way time adjustment has long been a common thing for them. The method of using gravity to accelerate time and the method of using universal repulsion to slow down time were discovered almost at the same time, but the operation of the former is much simpler.
The so-called universal repulsion is another name for the negative pressure generated by dark energy in space.
Dark energy in the universe is evenly distributed throughout the space, just like the air on Earth. It took a long time for metal civilization to find a way to mine it efficiently. After all, this substance does not react with any known elementary particles. It is truly invisible and intangible, colorless, non-toxic and tasteless.
Civilizations that have learned to utilize dark energy will generally give priority to using it for interstellar travel. They can obtain extremely high acceleration through the large amount of repulsive force generated instantly, and this acceleration process does not consume any real energy, so the vehicle can last for a considerable period of time.
However, when the production of dark energy required the consumption of real energy. At that time, the method of directly purifying dark energy from space was extremely inefficient. For the sake of space travel, the only way was to simply and crudely increase the energy scale around the spacecraft to 10 to the 24th power of electron volts. At this time, the conventional leptons around the spacecraft would rapidly transform into inflatons at this energy scale, and the artificially induced local inflation would push the spacecraft out with an acceleration of several hundred G relative to the ground.
The biggest problem with generating new dark energy is that this operation will accelerate the expansion of the universe and the Big Rip, so after efficient hyperspace mining technology was invented, all energy-standard spacecraft were sealed up.
In order to achieve stable expansion of space, capable advanced civilizations have been tacitly mining the dark energy that permeates space in an orderly manner, in order to ensure the orderly and controllable activities of the entire space.
The universe must expand, but it cannot expand too fast.
The civilization that first mastered the dark energy navigation technology also had priority to obtain tickets to go deeper into the universe. Although the travel speed was quite slow, the anti-gravity would greatly shorten the total time of the voyage relative to the ground reference system.
The reason is so simple that even the level of human technology can explain it: according to the principles of general relativity, positive gravity slows down the clock, while negative gravity speeds up the clock. Of course, this is all relative to a reference frame that is fixed on the ground and does not move.
When the metal civilization mastered the time zooming technology, the round trip that originally took tens of thousands of years became just a few decades. Explorers in the powerful repulsive field will observe that everything around them seems to be slowed down countless times, and can even experience the effect of partial time stopping.
However, even so, a civilization that only masters these technologies still does not have the ability to leave its own galaxy and can only wander around the star system where they were born. After all, no matter what kind of working fluid propulsion is used, it does not involve folding and can only continuously change its position in space and time.
As long as it is a continuous change of position in space and time, there must be a speed ceiling, which is the speed of light. Moreover, the limit of dark energy propulsion technology itself is far from reaching the speed of light, and it cannot even reach one percent of the speed of light.
Therefore, the spacecraft using dark energy no longer undertake long-distance transportation tasks, but they are still widely used in planetary surface missions. Their advantages are quite obvious: simple manufacturing process, clean and pollution-free, inexhaustible raw materials, mature technology, cheap and durable, and can also slow down the Great Tear.
The surface ring dropped by Observer No. 1 on Earth was specially modified to perfectly fit the size and body structure of carbon-based organisms. A half-brain capable of learning human language was also embedded in it as an operating system.
He put a lot of effort into this half brain.
After all, cloning an individual with complete life and rationality only requires following biological rhythms, but forcibly creating an incomplete independent personality involves a lot of ethical issues.
He also argued with the General Administration for quite a long time before he finally achieved his goal by exploiting loopholes in the system.
Keats felt that it was all because the human brain had no ability to connect to an independent body. All the connection pathways were completely covered by the skin, and the brain could not control any equipment. If humans could use their brains to connect directly to transportation like them, then everything would become much simpler, and they would only need to change a few parameters based on the previous equipment.
"Are you sure you want to fly around the city?"
“…Will there be any danger?”
"Not yet, but it doesn't make any sense. What you see elsewhere around here won't be any different than what you see here. And you won't be able to gather any useful information."
Ai Bishui nodded.
The whole city was in ruins, with cars twisted into strange shapes on the streets and broken glass glittering in the sun. The air was filled with the pungent smell of burning rubber and paint, and from time to time there were sporadic gas explosions and rumbling sounds of collapsing buildings in the distance.
There were several distinct bloodstains on the ground, which had long since dried up and turned dark black.
The black smoke produced by the burning condensed in the quiet air not far from the ground. Several brightly colored rescue helicopters were flying through it, apparently searching for survivors.
"Let's... go back to the ground." She didn't want to watch any more.
As soon as she finished speaking, she felt her feet suspended in the air, and she was falling towards the ground almost in free fall. When she was about to approach the ground, her speed quickly slowed down to 0, and the scene in front of her eyes instantly turned blood red.
At this time, Fang Cheng, who was in a daze on the grass on the ground, saw a girl suddenly appear in the air more than one meter above and fall down.
The next second, the violent collision made his head buzz. He decided not to have such close contact again.
The body structure strength of carbon-based organisms is too low, are they all made of soap bubbles??
