The entire conference was attended by more than 3,000 people in total, all of whom were the most elite existences. Yu Yifeng sat at the front of the hall, and there were more than two dozen scientists sitting with him, who were the main persons in charge of each experiment.

The crowd whispered a discussion below. There are many people who participated for the first time and did not know the truth, but at first they suddenly turned pale after hearing the bad news, and then they heard that there was still some hope, and they were slightly better.

Yu Yifeng took a closer look, and several familiar faces in the morning were gone, and these people were arrested for secretly spreading rumors, and all of them went to prison.

In the face of this phenomenon, he was a little helpless, and smiled bitterly in his heart, maybe this is the "suppression of dissidents" in politics, but there is no way, it can't make everyone panic and have no intention of working, right? He thinks he is the righteous party, and perhaps those who are caught in it also think they are righteous......

"The meeting starts now!"

Yu Yifeng said, "Comrades, everyone knows the predicament we have encountered, and we still have six months to go before we have a safe time, so we won't say much." Now, the most critical thing is the quality of the alien spacecraft! ”

"It's even about our survival strategy! If the mass of the spaceship is too large, we humans can't push it, so we can only hide inside and defend it to the last chance of survival! If it's smaller, we can escape the moon with this spaceship! ”

"Our scientists have measured the mass of the alien spacecraft, and now, please publish the final results!"

Everyone's eyes were on the stage, which was a kind of uneasiness, a kind of nervousness. This kind of mood, just like the second before the college entrance examination results came out, tangled and uneasy, as if waiting for the verdict of fate. Now this anxiety is a hundred times stronger, this is a life-threatening sentence!

In fact, Yu Yifeng's heart was also a little uneasy, the expressions of these scientists were strange, and they couldn't see joy, anger, sorrow, or joy. Some even frowned, looking sad, but Yu Yifeng could see that this was not worry, but a kind of doubt, a kind of incomprehension.

What's going on?

A scientist stood up, looking at so many people staring at him, his expression was a little restrained, "Everyone, we have used more than twenty methods to measure, and we have obtained almost the same results. Its quality is ......"

"1,038,600 tons!"

1,038,600 tons! With a "bang", everyone was noisy, discussing the possibilities represented by this number.

How much is it? Is it less? Is it good? Or is it bad?

To be honest, the figure of 1,038,600 tons is much better than the worst conjecture, but slightly worse than the most optimistic results, and some even say that it has a quality of 0.

Yu Yifeng frowned, how can I say it, this alien spaceship has such a huge volume, but with this mass, it can be said to be very light, right......

You must know that the mass of a large aircraft carrier is about 100,000 tons, the mass of the Oriental Pearl Tower is about 125,000 tons, and the 443.7-meter-high Empire State Building has a mass of 400,000 tons!

And a spaceship with a height higher than Mount Everest is only a little more than 1 million tons, which can really only be said to be very light! Even if it stuffs tens of thousands, hundreds of thousands of aircraft carriers will not be a problem!

But, but...... People don't even have the ability to lift an aircraft carrier into the sky! One of the most prominent difficulties is the problem of fuel, with current chemical technology, if you want to propel a spacecraft into the sky, you need at least ten times the mass of fuel.

The kinetic energy that a spacecraft can obtain is not proportional to the amount of fuel, which can ideally be expressed by the Tsiolkovsky rocket equation. It's not a linear function, and to put it simply, with a lot of fuel, the ship's final speed may only increase slightly.

This is a headache for aerospace, the most advanced Victory spacecraft, at least 5,000-6,000 tons when it first ascended to space, but in the end it was only 500 tons, which is still a relatively good result.

So how much fuel is needed for a million-ton spacecraft, 10 million tons? In addition, do you want air circulation devices, electrical devices, etc.? How fast can you reach at the end? Can humans make an engine with a driving force of 10 million tons?

These are all problems, and they are all big problems!

Just when people were talking, physicist Felix suddenly stood up, waved his hand, and said: "Everyone, listen to me, in the course of the experiment, we found more than this!" ”

"The figure of 1,038,600 tons is actually much lighter than we imagined! Why? Over the years, we have built hundreds of laboratories in the spacecraft, and the materials and facilities that have been moved into them are far more than that! ”

"We simply estimated that in 30 years, we have moved at least 2 million tons of things from the outside world! But the total mass was only 1,038,600 tons! ”

"It doesn't make sense! It's just weird! Not even possible! ”

"We thought we were wrong, but more than 20 experimental methods came up with almost the same results, which is unimaginable! Unless the whole physics edifice is pushed all over again, we're going to make all mistakes! ”

"Therefore, this spaceship must contain high-tech that we humans can hardly imagine...... To test our minds, we did a simple experiment. ”

"We first transported 10,000 tons of ore in the spaceship. Immediately after that, the mass of the spacecraft was measured again, and it turned out to be 1,038,600 tons! ”

"It's so surprising, we don't believe in evil, and if we send another 10,000 tons into it, it's still 1,038,600 tons!"

"What does this mean?" Felix said feverishly: "The mass of the ship is actually constant!" No matter how much you stuff into it, it won't get heavy, oh my! What kind of technology can this do? ”

The hall was lively again, some people understood, others not.

Yu Yifeng rubbed his nose, as long as he was a person who understood, there was a hint of ecstasy in his eyes!

What does that mean? As a simple example, this spaceship is like a space ring in a fantasy novel, no matter how many things you put into it, it won't get heavy when you weigh it from the outside!

Doraemon has seen it, his space bag, which contains so many things, is still very light...... This spaceship, perhaps, is such an existence.

That's cheating! There is nothing more troublesome for interstellar voyages than fuel. The usual rocket, the mass of the fuel alone, accounts for 90%, or even more than 95% of its total mass!

For example, the most powerful rocket ever launched by mankind, the Saturn 5, had an initial mass of 3,000 tons, but the Apollo spacecraft launched in the end was only 46 tons. According to the Tsiolkovsky rocket equation, most of the energy is actually used for the propulsion fuel "itself", so the utilization rate of energy is actually very low.

It is precisely because of this that the speed of the spacecraft is so difficult to increase, the more fuel it has, the more mass it has, and in the end, it can be used effectively only a little.

To obtain more kinetic energy, either more and more fuels or to use more energy-dense fuels, such as nuclear power.

But now, the most fundamental and real cheating artifact has appeared, with a constant mass of 1.0386 million tons! The things inside are loaded casually, and the quality on the outside will not change, even if it is loaded with 100 million tons or 1 billion tons of fuel, it is still 1.0386 million tons on the outside!

If you have the ability, there is no problem with putting half a moon into it, and the quality is still 1.0386 million tons!

This kind of technology is really perverted! For humans, there is no difference between cheating and cheating, is this space technology, or negative matter technology? Human beings don't understand why such a wonderful phenomenon exists, this is not the world of fantasy novels......

However, if you don't understand it, it won't affect the use, Yu Yifeng only knows that he can fit the entire moon base into it, and he doesn't need to think about the weight or quality, as long as he is crazy about loading things!

Thinking about it, his eyes became brighter and brighter, with such a spaceship, if humans can't escape from the moon, they can just die......