The positive 4hedral! There are hollow gaps and gold metal sheets inside!

Everyone was stunned. Lu Yi quickly asked: "Scan the details of the internal gold metal sheets with a different angle!"

"yes."

The engineer responsible for detecting the F03 signal area of ​​the Arctic quickly entered new control instructions on the keyboard, requiring the groundhog rover far away to change direction and use CT scan to perform slice scanning.

Everyone waited nervously for more than half an hour, and the scan results were returned from Mars and displayed on the screen. Professor Su couldn't help but shouted excitedly: "Text! Text is engraved on the gold metal sheet!"

The scans displayed on the large screen can clearly see regular patterns, which must be Martian text.

Text carries civilization and records the information of civilization.

Thinking of this positive tetrahedral structure with the best ability to withstand external force squeeze, metal sheet made of inert gold, how can you not understand this is the information deliberately left by the Martians.

It is very likely that the history of Martian civilization and the mystery of the extinction of the Martians will be recorded on it.

"Send a few detection vehicles down and dig up this tetrahedron."

A hint of excitement flashed in Lu Yi's eyes and said, "Be careful, be careful not to destroy the metal layer outside the tetrahedron. After digging it up, let the tomorrow call back to Earth as soon as possible."

"Yes." The engineers who controlled the detection vehicle also suppressed their inner excitement and quickly entered a series of instructions.

"Supervisor Fu, help prepare a vacuum chamber that can accommodate this metal tetrahedron, and pay attention to biochemical protection."

"No problem, we have such a large vacuum chamber, and we can use it after changing it." The administrative director of the Mars exploration plan nodded quickly and then went out to arrange the matter.

The Mars exploration plan has been launched at the end of January, and more than eight months have passed since September. Now there has finally been real substantial progress, which is also great news for him, the administrative director who has been transferred.

Two and a half days later, Tomorrow's engine sprayed a blue plasma beam and slowly landed from the air at a speed slightly lower than the Earth's gravity acceleration.

"The gravity of the Earth is greater than that of Mars, be careful, don't smash it!"

Lu Yi took the owners of the Mars exploration team, including 13 scientists who came from Russia and the United States, and personally looked at the robotic arms at the launch site, carefully shifting the 6.3-meter-long tetrahedron from the open hatch door of Tomorrow, and then installed a 22-wheeled large engineering vehicle and headed towards the vacuum chamber...

"Lu, do you think it records the mystery of the extinction of Martian civilization?"

Through the glass in the vacuum chamber, Professor Hill watched the mechanical drill bit start to drill holes on the tetrahedron to check the internal situation. Professor Hill couldn't help but feel excited.

"have no idea."

Lu Yi looked at the monitoring screen. The drill bit successfully drilled through the metal layer outside, and the gas inside leaked out, and the detection instruments in the vacuum chamber immediately responded.

"Helium! Martians are really cautious. With the golden metal sheet and helium, the macro-level text information will be preserved for 20 billion years."

Professor Su was also looking at the surveillance screen and couldn't help but sigh when the gas leaked out and was detected.

The content of helium and gold on Mars is not high. It costs so much to purify helium and use gold to make metal sheets. Now, no one will believe that the information on the metal sheets is not important.

Of course, this can save the information recorded on a certain scale and above. If it is stored like a tight electronic device, the existence of thermal motion will be mixed in a microscopic level after a thousand years, and the information recorded on the equipment will still be completely lost.

"No microorganisms such as bacteria and fungi were found, nor were active viruses detected."

A number of leaked gases were collected, and after careful biochemical tests, a biologist nodded to Lu Yi.

"Cut it at the predetermined angle, be careful not to damage the metal plate inside!" Lu Yi ordered the engineer who was responsible for controlling the robot arm next to him.

Because it is in a vacuum environment, metal cutting seems a little lonely and silent, without splashing sparks, and the sound of cutting cannot be transmitted. It took more than 4 hours to finally open a window in the tetrahedron along the pre-drawn lines.

Through the open window, metal pieces were welded and fixed inside. The edges of the coin-sized text engraved on it were a little blurry, but the overall picture was still clearly visible.

"Prepare the HD camera and replace it with a higher precision robotic arm to remove the metal sheet on it!"

For safety, Lu Yi was not going to let someone enter the vacuum chamber this time, but controlled the robotic arm outside to operate the whole process, and then took pictures of the contents on the metal sheet one by one for deciphering through the shooting of a high-definition camera.

No one knows whether there are unknown viruses or bacteria inside. Gas detection alone can only be roughly determined. If you really want to confirm that there are no unknown viruses or bacteria above, this requires comprehensive testing to determine.

Therefore, it is necessary to ensure vacuum and biochemical protection levels before safety is completely determined.

Lu Yi never dared to take the tenacity and harm of microorganisms lightly.

The whole boring work lasted until after nine o'clock in the evening. There were a total of 3,699 metal sheets, with content engraved on both sides, and a text engraved on the upper left corner of each metal sheet, and the size of the metal sheet is also different.

"Lu, these metal pieces with images should be language dictionary. Look at this photo number 034, this image obviously represents the sun, and there is a text under the image.

However, I guess the meaning of this text should be the number 1, because there are two suns in the frame next to it, and there is another text under the two sun images.

And after comparison, these two texts are the same as the text engraved in the upper left corner of some metal sheets, so I think the serial number of these metal sheets above the upper left corner of the metal sheets is the serial number of these metal sheets."

Late at night, after sorting and numbering the high-definition photos taken, everyone was busy quickly after each person was responsible for a portion of the numbered metal sheets.

In less than ten minutes, after comparing a few photos, Hill was the first to discover a strange pattern.

"Let's see if there are any pictures of the sun."

Lu Yi walked to Professor Hill's screen, slid his fingers to look at the photos he selected, and raised his head and shouted.

"I have a photo with an image of the sun here! No. 231. I show it on the big screen."

"I have a photo with a number 1711 and there is a sun on it."

"I have one here, number 197."

"I have one here, number 638."

......

Everyone who was studying the photos said the number of photos with the sun in their hands one after another.

There are 7 photos in total. Professor Hill, who has been in China for more than eight months, found these photos in the database based on the number on the screen. After a few minutes of comparison, he determined to say in his heart: "The photo 1711 is not, but 231 and 034 can be confirmed to be the number of Martians. 3 suns are another text, and 4 suns are another... One, two, three, four, five, and the counts they use are hexadecimal, and these hexadecimal numbers are the same as the numbers in the upper left corner of the metal sheet.

Then the remaining 4 photos should express binary meaning. You see, this sun is represented by 001, and here the two suns are used by 010, and the binary conversion continues until 6."

"What does this photo number 1711 mean?" Lu Yi nodded and pointed at the photo of 1711. A sun shining brightly, then an arrow extended from the sun, with two lines of text on it.

"Sun light? Or the speed of light?"

"This should be the speed of light."

Professor Hill compared the text just now and said: "The line above should mean the speed of light, the line below is the daily data of the Martians just now, and the last few texts should be units of length and time.

Lu, we need to pick out all the images and sort them according to the hexadecimal data in the upper left corner of the metal sheet. With such a perfect dictionary, it won’t take long for us to decipher the Martian text."
Chapter completed!