In total, more than 3,000 people participated in the whole conference, which was the most elite existence.Yu Yifeng sat in front of the hall, and with him were more than two dozen scientists, who were the main leaders of the experiments.

The crowd whispered below.There are many people who participate for the first time, do not know the truth, at first heard this bad news suddenly white, and then heard that there are some hopes, only slightly better.

Yu Yifeng looked closely, and several familiar faces in the morning were gone, and these people were caught in prison because of the rumors secretly.

In the face of this phenomenon, he is helpless, his heart laughed bitterly, perhaps this is the "repression of dissent" in politics, but there is no way, can not make everyone's heart afraid, no heart to work?He thinks he is the side of justice, and perhaps those who are caught in it also think that he is righteous...

“The meeting begins now!”

Yu Yifeng said, "Comrades, we all know the difficulties we have encountered, our security time is still six months, there is not much to say."Now, the most important thing is the mass of the alien spacecraft!”

“This issue is even related to our survival strategy!”If the ship's mass is too large, we humans can't push, we can only hide inside and guard against death, and win the last line of vitality!If it is small, we can escape the moon with this spacecraft!”

“Our scientists have measured the mass of the alien spacecraft, and now, ask them to publish the final results!”

All eyes were glimmering toward the stage, which was uneasiness, a strain.This mood, like the first second before the college entrance examination results came out, tangled and uneasy, as if waiting for the judgment of fate.Now this kind of trembling is even more intense, which is a life-threatening sentence!

In fact, Yi Feng's heart is also somewhat not calm, these scientists' expressions are strange, can not see the joy and sadness.Some even have their eyebrows, a sad look, but Yi Feng can see that this is not a worry, but a kind of doubt, a kind of puzzle.

What is it?

A scientist stood up and watched so many people stare at himself, his expression somewhat restrained, "Gentlemen, we have used more than 20 methods to measure, and we have almost unanimous results."Its quality is...”

“103,600 tons!”

103.86 million tons!"Hang", everyone clamored, have explored the possibilities represented by this number.

Is it much?Less?Is it good?Or is it bad?

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

Yu Yifeng frowned, how to say, this alien spacecraft so large volume, but this mass, can be said to be very light and light ...

You know, the mass of a large aircraft carrier is about 100,000 tons, the quality of the Oriental Pearl Tower is about 125,000 tons, 443.7 meters high Empire State Building, the quality reached 400,000 tons!

And a spacecraft higher than Mount Everest is only more than 1 million tons, really can only be said to be very light and light!Even if it is tens of thousands of ships, hundreds of thousands of aircraft carriers will not be a problem!

But... people don’t even have the ability to lift an aircraft carrier into the sky!One of the most prominent difficulties is the fuel problem, and with current chemical technology, it is at least ten times the mass of fuel to push a spacecraft into the sky.

The kinetic energy obtained by the spacecraft is not proportional to the amount of fuel, and can be expressed in the Tsiolkovsky rocket equation.This is not a linear function, and to put it more simply, the fuel increases a lot, and the spacecraft may eventually only increase a little bit.

This is a headache for spaceflight, the current state-of-the-art Victory spacecraft, the initial ascension of at least 5000-6000 tons, but in the end is only 500 tons, which is still a better result.

So how much fuel is needed for a million-ton ship, 10 million tons?Plus what kind of air circulation device, electric power device and the like?How fast is the last speed?Can humans make engines that push 10 million tons?

This is all a problem, it’s a big problem!

Just as the people were talking, the physicist Felix suddenly stood up, waved his hand, and said, "Gentlemen, listen to me, in the course of the experiment, we found more than that!"

"The number of 1.038,600 tons is actually much lighter than we thought!"Why?Over the years, we have built hundreds of laboratories in the spacecraft, large and small, and the material facilities that have moved in are far more than that!”

“We simply estimated that in thirty years, we had moved at least 2 million tons of things from the outside!But the total mass measured is only 1.0386 million tons!”

"That's unreasonable!It's weird!It's not even possible!"

"We thought we were wrong, but more than 20 experimental methods have come up with almost the same result, it is almost impossible to imagine!"Unless the whole physical edifice is pushed back, we will all go wrong!”

“So, this ship must contain the high-tech that we humans can imagine... To test the idea in our hearts, we did a simple experiment.”

"We first shipped 10,000 tons of ore in the spacecraft.Then a measurement of the ship's mass was measured, and it was 1.0386 million tons!"

"It's amazing, we don't believe in evil, and we send another 10,000 tons into it, or 1.0386 million tons!"

“What does that mean?”Felix said feverishly: "The ship's mass is constant!"No matter how much you put inside, it will not become heavy, oh my God!What kind of technology can this be done?”

The hall was full again, and some people understood, some people did not understand.

Yu Yifeng rubbed his nose, as long as he understood, his eyes showed a hint of ecstasy!

What do you mean?As a simple example, this ship is like a space ring in a fantasy novel, no matter how many things are contained inside, it will not become heavy from the outside!

Doraemon saw it, his space bag, containing so many things, but still very light ... this ship, perhaps this is the existence.

This is like cheating!For interstellar travel, the most troublesome thing is fuel.The normal rocket, just the quality of the fuel, accounts for 90% of its total mass, or even more than 95%!

For example, the most powerful rocket, the Saturn V, had an initial mass of 3,000 tons, but the Apollo spacecraft that was finally launched was only 46 tons.According to the Tsiolkovsky rocket equation, most of the energy is actually used to propel fuel "self", 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 improve, the fuel is more, its own mass is large, and finally it can be used a little bit.

To get more kinetic energy, it’s either more fuel, or more energy-intensive fuels, such as nuclear power.

But now, the most fundamental and true cheating artifact has appeared, and the mass is constant at 1,038,600 tons!The inside of the things casually, the outside quality will not change, even if it contains 100 million tons, a billion tons of fuel, outside, or 1038.6 million tons!

There is no problem with loading half a moon, and the quality is still 1,038,600 tons!

This kind of technology is so bad!For humans, there is no difference between cheating, is this space technology, or negative material technology?Humans do not understand why there is such a wonderful phenomenon, this is not the world in a fantasy novel.

However, do not understand, do not affect the use, Yu Yifeng only knows that he can put the entire lunar base into, what weight, quality ah do not need to consider, as long as crazy things on the line!

Thinking about it, his eyes are getting brighter and brighter, such a spacecraft, if humans can't escape the moon, they just die...