Super hang up system

By chance, John heard about a place called the underground black market from a friend. It is said that there is no legal supervision, and you can buy and sell anything without worrying about being discovered.

After knowing this news, his mind became active. His current research object is a very rare metal samarium, and he has to deal with a large amount of this rare metal every day.

As far as he knows, the metal samarium is only found in country M, and the United States has listed this rare metal as a prohibited strategic material and prohibited it from being sold to other countries.

If he could secretly get some and sell them on the underground black market, he might be able to make a fortune.

The thought thrilled him so much that he couldn't sleep at night.

So he made some modifications to his lunch box overnight and hid a lead interlayer inside the lunch box.

The next day he brought his lunch box into the work place smoothly. During the experiment, he secretly hid one hundred grams of samarium into the lead interlayer in the lunch box.

When he went through the security check after get off work, his heart was very high. If he was found out, he would face jail time, but his desire to get rich made him desperately want to try this way.

When he successfully passed through the security check channel and walked out of the gate of the institute, he was so excited that he almost wanted to sing aloud to express his inner joy.

The samarium metal, which can be seen every day, suddenly became a source of money, which made him feel a little helpless for a while.

But the excitement didn't last long, because he began to worry about the price, and samarium metal had never been traded before, so what kind of price should be set made John worry.

If it is set too high, it may not be sold, and if it is set too low, it will make him feel worthless for taking such a big risk.

After struggling for a while, he decided to set a high price first, and then lower it if no one bought it.

Through a friend's introduction, he successfully consigned this 50 grams of samarium metal to the underground black market, priced at [-].

As time goes by, he pays attention to his bank deposit every day, hoping that one day he will suddenly have an extra 50.

However, one month passed, two months passed, and the amount in the bank card did not change at all.

He began to wonder if he had set the price too high, maybe he would have a chance to sell it if he lowered the price a bit.

It's a pity that his guess was wrong. Although samarium metal is designated as a strategic material by country M, it has not found any practical application so far, so no one will go to the underground black market to find it.

However, just as he was about to lower the price, a bank transfer message came into view. With excitement, he pointed to the zeros behind the five and counted one by one, one, two, three, four, five, five followed by five Zero, half a million!It's really 50!

He couldn't believe his eyes, he rubbed hard, and counted again tremblingly, yes, it was still 50, he swallowed his saliva, tried hard to suppress the excitement in his heart, for fear that he couldn't help but be so high cheered.

The ecstasy in his heart was suppressed by him, but his face turned red from being too excited.

A colleague discovered his anomaly.

"John, are you okay?"

"Oh, it's okay, maybe I've eaten a bad stomach, I'm going to the toilet."

John came to the toilet, turned on the faucet, and scrubbed his face vigorously with the cold tap water, trying to calm himself down.

After a while, he let out a long sigh of relief, and finally calmed down his excited heart.

For almost the whole day, John was in a state of ignorance, without the slightest thought of working. He was full of thoughts on how to spend the huge sum of 50 yuan that fell from the sky.

This state continued until he returned home.

"Mary, Lillian." As soon as John stepped into the house, he couldn't wait to call out the names of his wife and daughter, wanting to share the joy with them.

However, the room was quiet and no one answered him.

Are they out?John guessed in his heart.

As soon as he stepped into the living room, he saw an Asian man looking at him indifferently.

"Who are you, who let you break into my house, what about my wife and children, what have you done to them?" John shouted excitedly.

"Don't get excited, Mr. John. I'm here just to make a deal with you. In order not to be disturbed, I'll let your wife and daughter sleep on the bed for a while."

After hearing this, John hurried into the bedroom and saw his wife and daughter who were sleeping soundly
"What did you do to them?" John howled angrily.

Liu Xing walked into the bedroom and said, "Don't worry, they are just asleep. I will wake them up when we finish the deal."

"Tell me, what exactly do you want to talk to me about?"

"I bought the samarium metal you consigned in the underground black market," Liu Xing said lightly.

John was shocked: "The information of customers in the underground black market is absolutely confidential. How did you know that I was the one who sold samarium metal?"

Liu Xing said: "You don't need to worry about this issue. I came to you because the samarium metal you sold on the underground black market is far from meeting my needs. I need more samarium metal."

John complained: "Do you know how difficult it is to bring something out of the research institute? One hundred grams is already my limit."

Liu Xing said: "This is not something I need to care about. Either you bring me enough samarium metal, and of course I will buy it at a suitable price, or I will report you for stealing from the research institute. You Choose yourself."

choose?There is no choice here, it is clearly persecution, there is no choice at all.

John was very depressed, but he had no choice but to grit his teeth and ask, "How much do you want?"

Liu Xing said: "I won't make things difficult for you, just another kilogram will be enough."

John thought for a while and said: "Okay, one kilogram is one kilogram, but I can't take out so much at once, I can only take it out in batches, I need a week."

Liu Xing nodded and said: "Then I will come to you for a deal in a week, don't think about running away, or I will expose your affairs."

"Then my wife and daughter?" John worried.

Liu Xing waved his hand lightly on them and said, "They will wake up in a few minutes, remember you only have one week."

A week passed in a flash, and John saw Liu Xing again when he came home from get off work.

"Are things ready?"

John took out the lunch box from his bag, and then found a metal jar from the kitchen. He poured the samarium metal hidden in the lunch box into the metal jar.

"Here is exactly one kilogram of samarium metal."

After Liu Xing confirmed it was correct, he said, "I'm a trustworthy person, tell me your account number, and I'll transfer the money to you right now."

A ding sounded, and John picked up the phone, and immediately felt dizzy. What made him dizzy was the number displayed on the phone that made him breathless: $500 million.

He could not earn so much money in his whole life without eating or drinking, but now he got it all at once, how could he not be excited.

His mind was blank, and he didn't even know when Liu Xing would leave.

Liu Xing got what he wanted, without any delay, and returned to China at the fastest speed.

With samarium metal, the research and development of the dark bomb can continue smoothly. As time goes by, the dark bomb has begun to take shape.

At the same time, above the vast sea of ​​stars, a huge ship with a dark body was silently driving in the depths of the universe. There was a blue planet right in front of it, this beautiful blue planet It is the destination of its trip.

Deep in the mountains of Qiannan, Guizhou, there is a spherical radio telescope with a diameter of 500 meters. It is currently the largest and most sensitive radio telescope in the world.

This radio telescope has been searching for pulsar signals in the universe since it was built. So far, 44 confirmed pulsars have been discovered.

That night, a scientific researcher on duty made himself a cup of coffee, trying to dispel his exhaustion and sleepiness.

He took a sip, thinking that his level of making coffee is getting higher and higher. He was just trying to be happy, but then he thought, does this mean that he is staying up more and more times, this kind of thing seems to be nothing to be excited about .

He slumped on the chair, looking bored at the unchanging waveforms on the screen in front of him.

Suddenly, a slight waveform flickered, and this inconspicuous flicker made him sit up straight from the chair, staring at the screen.

According to past experience, this kind of waveform oscillation is exactly the performance of a pulse signal. Could it be that a new pulsar has been discovered?

He quickly took a few sips of coffee to dispel the sourness in his eyes, and stared at the screen intently, afraid of missing every change on the screen.

At the same time, he turned on the recorder, ready to record the changes.

Suddenly the waveform oscillated again, this time he could see it very clearly, it was indeed a pulse oscillation.

Once, twice, three times, more and more pulse oscillations were observed, and he was surprised to find that the pulse signal this time was completely different from the pulse signal observed in the past.

Usually observed pulse signals are transmitted at a fixed frequency, and the interval between every two signals remains constant.

However, after his calculations, the frequency of the pulse signal observed this time is constantly accelerating, and each interval is a few milliseconds faster than the last interval. This is the first time he has encountered such a situation.

Regardless of the fact that it was already late at night, he hurriedly called the Director of the Observatory.

Hearing the news, the director of the observatory rushed over as fast as he could.

"Call out the data you recorded and let me have a look."

After repeated checks and calculations, the director still came to the same conclusion. The pulse signal was indeed accelerating at a very small speed, which was a strange phenomenon he had never encountered before.

He thought quickly in his mind, and finally came to a bold conclusion. This is the only reason that can reasonably explain the acceleration of the pulse signal, that is, the pulse source is constantly approaching the earth.

Although this conclusion is somewhat absurd, it is the only explanation he can think of so far.

"How could the pulse source approach the earth? It's simply impossible." The researcher expressed doubts about the explanation given by the director.

The director said: "This is just a guess, and it doesn't mean it is correct. Continue to closely observe this pulse signal, and I will invite some experts to analyze it together."