Time capsule.

Bai Yang has wanted to buy this thing for a long time.

His plan is obvious. BG4MSR claims to live in 2040, so as long as Bai Yang sends a slow delivery that spans twenty years, if the other party can receive it, it will prove that what she said is true.

Place an order!

Bai Yang bought a small time capsule, made of stainless steel, and came with two wrenches and a shovel, each costing 68 yuan.

It's so expensive, it makes my body hurt for a while.

So what should I give?

What should be put in a time capsule?

Food? Medicine? Souvenirs? A letter?

No, none of these are important.

The important thing is a timer, a watch. Bai Yang needs a clock that can tell time. When the time capsule is dug out of the ground, the clock comes to light again. It can tell people how much time has passed.

No clock can sit still in a time capsule for twenty years and still run normally. The battery life of an electronic quartz watch is only five to ten years. An automatic mechanical watch does not use batteries and uses a tourbillon to wind the clockwork, but it relies on external vibrations to provide energy.

, the pointer will stop if left for a long time.

What to do?

With the current advanced technology of mankind, it would definitely be a matter of minutes to make a timer that can work continuously for twenty years, but Bai Yang can't do it. He is just an ordinary high school student with limited abilities and financial resources. His biggest reliance is

They are shopping websites Taobao and JD.com.

Bai Yang tried searching for "timer" on Taobao, and most of the results he got were ordinary electronic clocks. Even if he thought about it with his toes, it would be impossible for them to last twenty years in a time capsule. Bai Yang's request sounded simple but tricky to implement.

All you need is a clock, no fancy functions, just timekeeping - listen, how simple this is, isn't it your job as a clock to keep time?

But how long does it last?

At least twenty years.

This is not simple anymore. It is not easy to achieve the perfection of even simple functions. Bai Yang really couldn't find a suitable target for a while.

He sat on a chair, stared at the screen of his mobile phone, lost in thought.

Twenty years is too long. In daily life, except for the house where we live and the furniture used in the house, there are very few things that are designed for twenty years as a time unit.

"Twenty years..."

Bai Yang frowned and murmured, playing with a coin in his hand.

It was a Morse code practice coin that Bai Yang bought when he was practicing constant-frame reporting. It was the same size as an ordinary one-yuan coin, but the front and back were engraved with Morse code and their corresponding letters. It looked golden, but in fact

It is made of stainless steel and plated with copper.

But in the end, Bai Yang didn't develop the ability to send messages. His father said that if he practiced blindly on his own, he would definitely fail in practice, and he couldn't change the bad habits he had learned. Bai Yang didn't believe it, and in the end he failed in practice, but Bai Yang didn't admit that it was him.

For the problem, he blamed it on the fact that the Changshu K4 keys he bought on Xianyu were pirated goods.

"Twenty years, how can we persevere through these twenty years?"

This problem is not that complicated at first glance.

After thinking about it carefully, I realized how difficult it is.

When time itself becomes a roadblock in front of you, you have to face the most powerful force in the world.

Since man-made creations are unreliable, we can only place our hope in the physical laws of the world itself - changes in nature have always been measured in millions of years, and a mere twenty years can only take place in the blink of an eye.

Bai Yang's first thought was oxidation.

"Oxidation?"

Oxidation of iron, or oxidation of copper.

Iron is oxidized into ferric oxide, which is red in color, and copper is oxidized into copper oxide, which is green in color.

If Bai Yang can use the color change caused by metal oxidation, for example, when BG4MSR digs out the time capsule, she will see the metal time marker placed inside the capsule.

At this time, Bai Yang only needs to ask the other party the color of the marker - this thing cannot be faked, and the other party does not know the meaning of the color, so he cannot lie - to know whether the girl is telling the truth.

“Will this approach work?”

"It doesn't work."

Bai Yang shook his head.

Doesn't work.

The time capsule is strictly sealed and is not breathable or ventilated at all. How can there be so much oxygen?

Bai Yang's second thought was evaporation.

He thought about the legend that the Mausoleum of the First Emperor of Qin was filled with mercury, and that the rivers, lakes and seas with mercury could still sail boats - in fact, with the terrifying density of mercury, as long as they were not afraid of death, everyone could float on the water with iron palms and the freedom of mercury.

The volatilization speed is extremely slow. If he puts 0.5 grams of mercury in the time capsule, it may take more than ten years for this mercury to completely evaporate...

When BG4MSR opens the time capsule twenty years later, she will see - high concentrations of mercury vapor.

Neither does this.

Isn't this harmful?

Bai Yang scratched his head.

This doesn’t work, that doesn’t work either, what should I do?

It's a pity that there is no second person present to discuss this issue with him at this time. Two brains are definitely better than one. Bai Yang is sitting on a chair alone and thinking hard. It's a pity that he is a primate mammal and not a large reptile.

Otherwise, he could still have a brain on his butt to help him think. In silence, the small alarm clock on the desk was ticking. The night was very deep, and the rain outside the window seemed to be still falling.

That night Bai Yang lay in bed unable to sleep, staring at the ceiling in the darkness with his eyes wide open, thinking about this problem over and over in his mind.

He hopes to find a method, a method that cannot be faked. It will not be interfered by any external force, and the results will not be tampered with by anyone. Only the iron rules of this world can control its changes, just like the death of trees turns into coal, and rocks are turned into coal.

Erosion creates caves—let the world itself act as a timer. Only in this way can it be called ironclad evidence.

It's easier said than done, but it's easier said than done.

As a high school student, it is still too difficult to find such a method. Bai Yang thought silently, maybe another person, someone older and with more life experience, could come up with the method in a flash and say it himself.

Or she is too young and has too little knowledge... Could she have thought of a good solution if it were Brother Yan? Could she have thought of a good solution if it had been He Leqin?

Young Master He has seen a lot since childhood and has traveled abroad more often than he has traveled to other provinces. Maybe he can think of some good ideas?

Forget it, Bai Yang shook his head. He Leqin failed the physics exam again and again. His chemistry exam score was lower than that of physics. He relied on Bai Yang and Brother Yan to save his daily homework. He was addicted to PlayerUnknown's Battlegrounds, Watching Ass, Total War, Assassin's Creed, Dark Souls, European Trucks all day long.

Microsoft Flight Simulator Half-Life... Half-Life is such a bad translation, it ranks among the top ten worst Chinese game translations... Who originally translated it into Half-Life... What was the original name of Half-Life?

Bai Yang was thinking endlessly.

Half-Life original name?

It seems like half...

half life?

Bai Yang was stunned, and sat up in shock while dying of illness.
Chapter completed!