Die on Mars - Chapter 197

c197 Day 322 (7) Wherever there are people, there are

Xenon ion thruster SPT276.

The world’s most powerful electric rocket, produced by JAXA and manufactured by Mitsubishi Heavy Industries.

The thrust force is up to 70N.

“Is it still there?” Tang Yue had a deep memory of this electric rocket. The engine that was removed from the Falcon III asteroid probe is currently installed on the space station. It was successfully repaired by Maidong not long ago. “Look at it. Not destroyed by accident.”

“I’m watching…but the data transmission is unstable.” Old Mao stood in front of the computer, frowning, “This damn transfer speed is like Baidu cloud disk without membership, damn Baidu.”

Tang Yue wanted to contact Maidong, but was stopped by Lao Mao.

“Stop talking nonsense and don’t occupy the bandwidth. There is only such a thin link between us and the space station.”

The system computer of the space station is transmitting data downlink at full speed. The amount of data is very huge, and what Lao Mao is doing is equivalent to downloading a 4K high-definition movie using a dial-up network.

Tang Yue was very worried. The situation of the space station in orbit could change every second, and his work progress was actually limited by the Internet speed.

“How much longer will it take?”

“We only have a narrow path as wide as the Shuhan plank road now, but the other party wants to send the aircraft carrier over this road. How long do you think it will take?” Old Cat whispered, “Let me see, the total amount of data waiting to be transmitted More than 88 GB, the average transfer speed is 200KB per second, the total time is more than 128 hours…five days.”

Tang Yue stared.

“The daylilies were cold for five days!”

“I know, don’t argue, don’t argue, don’t argue! I have to compress the data, I have to compress the data…” Old Cat also started to sweat. “I need to write a set of compression rules to give the idiot computer on the space station a set of compression rules.” A protocol, give it a sieve and a basket, let it filter the data, pack it, compact it, and then throw it down! The data chain should still have room for squeezing… There is still room for squeezing, and it must be squeezed just like the predecessors of IEEE squeezed the spectrum. it!”

The old cat’s hand speed has probably reached the fastest limit in his life, and the keyboard is almost broken.

“How about it? Can it be done?”

“Hey…” the old cat grinned, showing his strong white teeth, “Tang Yue, do you know how the live TV broadcast of the Apollo moon landing was done?”

Tang Yue was stunned.

“The wisdom of coders is infinite. Where there are people, there are programmers.” The old cat’s claws were as fast as flying. “Do you know who said this?”

“Alan Turing?”

The old cat shook his head.

“Von Neumann?”

The old cat shook his head.

“Shannon? Moore? Bill Gates?”

“Wrong!” Old Cat hit the Enter key fiercely, “Do you even need to guess? It was obviously Lu Xun who said it!”

Lu Xun:……

“OK! Screening and compression completed, the total data volume is 36MB! The average transmission speed is 3MB per second! It is expected to take twelve seconds! Start transmitting – ten! Nine! Eight! Seven! Six! Five! Four! Three! Two! One !Transmission completed! Decompression started, data recovery is in progress-” The old cat shouted the numbers like an auctioneer. The monitor in front of it refreshed rapidly, a series of processes were completed at an extremely fast speed, and the structure diagram of the United Space Station popped up on the screen. .

The structure diagram is then rotated and enlarged.

“SPT276 status is normal!”

The installation position of the SPT276 xenon ion thruster is located on the left side of the main truss of the space station. There is a small platform here that can be used to release satellites.

The Joint Space Station is bounded by the core module. The truss on the right side was cut off by Orion and was almost completely damaged, but the left side remained basically intact.

SPT276 was still usable. Tang Yue breathed a sigh of relief. He finally had good news. When the three-axis stabilization system of the Orion spacecraft exploded and completely failed, this electric rocket was the only power source.

“Get ready to spin!”

The United Space Station escaped from the shadow on the back of Mars, and Maidong finally saw the sun again.

The sun and Mars alternately passed by her eyes at extremely fast speeds. The space station rotated around the center with a cycle of six seconds. The average angular speed was 60 degrees per second. The sun flew past the window, and flew again six seconds later. It passed once, and flew again six seconds later. Mars circled around itself, and the whole world turned into a big carousel. The sky and the earth were spinning. Maidong felt that he was put in a big jar by someone, and then that person started going crazy. Tumble the jar.

As a trained astronaut, Maidong’s balance ability and sense of direction are stronger than ordinary people, but in this case, the stronger the balance ability, the more painful it is. She had to close the porthole on one side and then fix herself in the corner.

The centrifuge is time-limited during ground training.

But there’s no end to the space station’s tumbling.

Only after entering the sunny side could Maidong observe the damage to the United Space Station. She was wrapped in a huge amount of debris and space junk. The space station at this moment was like a demolition site after an explosion. All these debris came from the space station itself and Orion. The small ones are only as big as a fingernail, and the large ones are as big as a washbasin and a manhole cover. The fragments rotate at the same speed and in the same direction as the space station.

“Miss Maidong? Please answer Miss Maidong.”

“Copy that.” The girl’s face was so pale that she said, “Mr. Cat.”

“Miss Maidong, are you okay?” the old cat asked.

“It’s okay.” Maidong replied, “But to be honest… I feel very uncomfortable. I have a severe headache and my whole body hurts.”

“Please secure yourself, Miss Maidong. Next, we will abandon the damaged Hope and Discovery modules. There will be slight shocks and impacts.”

The SPT276 ion rocket has only seven kilograms of thrust. In order to obtain the most significant deceleration effect possible, the mass of the joint space station should be as small as possible.

Orion has cut off almost half of the mass of the space station. If Lao Mao discards the damaged cabins, the Mars United Space Station will only have the Crystal core module and the Hub node module, with a total mass of less than one-third of the original.

As soon as Lao Mao finished speaking, the space station shook slightly.

Maidong looked out the window and could see half of the Hope cabin gradually moving away from him. He could imagine that the Discovery cabin was breaking away in the other direction. The two cabins would maintain their current state of motion and keep moving away. Maidong looked at it. The white bulkheads of the Hope cabin reminded her of the plants she planted.

“Next, stow away the radiators and solar panels.”

Lao Mao put away the only four remaining solar panels. They are the lifeblood of the space station and must not cause any problems.

“SPT276 is ready to start.”

Once the ion thrusters are activated, the space station will gradually slow down, but the debris around it will not slow down, so there is a risk of impact.

At this time, they could only pray that the Crystal cabin was strong enough.

“Maidong, we are always with you.” Tang Yue’s voice sounded in the headphones, “Forever, Forever.”

“Um.”

Maidong nodded and closed his eyes.