And those that have successfully upgraded the list of intermediate technologies.

Advanced has been turned on.

Advanced skills also cost money to unlock.

It's just that compared to the trillions of intermediate level.

Advanced skills also require at least a dozen trillion per category.

Even the nuclear industry has a skill that costs tens of trillions to start successfully.

Su Han made a simple calculation.

If you want to upgrade all your skills to Advanced.

At least 400 billion dollars are needed.

This is equivalent to 70 percent of China's current GDP.

Although it is an exaggeration.

But it's still within Su Han's tolerance.

No matter how much it costs anyway.

Su Han also wants to upgrade the technology in his hand to a high level.

Because it's about whether you can survive or not.

……

Then something happened around the world that shook the whole world.

Su Han decided to donate 400 billion to the country.

This number can be said to scare all the people in the world into silly.

Although everyone knows that Su Han is rich.

But how much money does Su Han have.

No one knows.

However, according to the predictions of professional media, in the case of excluding fixed assets.

Su Han has at least 100 billion cash assets.

Because Su Han's donation is at least trillions every time.

Sometimes they even donate trillions at once.

If the money is less, there is simply not enough for him to donate.

But no one expected that Su Han would be able to donate 400 billion at once.

That's an exaggeration, isn't it?

You must know that the total amount of social security funds in Huaxia is only tens of trillions.

Su Han donated ten social security funds at once.

This donation is too exaggerated!

Although it used to be said that a person is particularly rich, even to the point of being rich enough to rival the country, but that is to say, it is just a statement.

Now there are 180 billion meters of gold in fixed assets in the world, and they are already among the top five richest people in the world.

But now it seems that the money of the world's top 1,000 richest people together is not as much as the cash in Su Han's hands.

I have to say that Su Han alone is already rich and rivals the world, okay.

This guy is too rich!

The key is whether 400 billion is Su Han's bottom line?

Su Han can't donate all his money like crazy!

If Su Han still has money in his hand.

Then Su Han's wealth is absolutely unimaginable.

The global question about how much money Su Han has has has also become a hot topic around the world for a while.

……

Su Han didn't care about that.

He made a donation just to gain more knowledge.

Even if you donate all the money.

For the sake of this knowledge.

He had to do that, too.

Because aliens are about to attack Earth.

Anyway, he's going to have to run away before the aliens can kill him.

As for helping the Earth resist aliens.

It's not his choice anymore.

If you decide to stay on Earth, you will immediately be made an idiot by the system.

What's more, even if you can stay on Earth, you may not be able to fight these aliens.

Because these aliens can come to Earth in just a few decades.

It can be seen that the degree of advancement of its technology is far beyond that of the earth.

Even if you stay here, you will be sent to death.

The best thing to do is to listen to the system and run quickly.

The massive amount of knowledge gained after the donation instantly filled Su Han's brain.

During the period, various black technologies also emerged in an endless stream.

Su Han's primary concern is knowledge in the aerospace field.

To Su Han's surprise, there is also nuclear fusion engine technology in the new knowledge system.

And it is also the legendary non-working substance nuclear fusion engine.

Conventional engines are all engines with working fluid.

This working fluid engine uses the material injected backwards when the fuel is burned, forming a reaction force to propel the spacecraft forward.

"Deceived Kangxi"

The non-working fluid engine does not need to use any fuel, it can produce reaction force, and the efficiency is naturally not comparable to that of the working fluid engine.

Originally, the non-working fluid engine was once considered a hoax in recent years.

Because some scientists have discovered that the so-called non-working fluid is actually the thrust generated by the magnetic inductance lines of the earth that have been cut.

So there is no such thing as a work-free engine at all.

The non-working fluid engine also became a civilian science overnight.

It has become a technique that everyone shouts and beats.

Su Han also once believed that there was no working fluid itself.

But the new technology that Su Han has acquired tells him that there is no working matter.

Although there is no working fluid here, it is still cutting magnetic lines.

But it's not the magnetic lines that cut the Earth.

The sun itself also has a magnetic field.

Moreover, the magnetic fields between different star systems also affect each other, and even the Milky Way itself has a magnetic field.

It's just that the Earth's magnetic field is too strong.

Ignoring other magnetic fields.

As long as someone can increase the power of the engine high enough.

Then the magnetic inductance lines that can cut into other stars, or even entire galaxies, can also produce a non-working fluid effect at that time.

If you can produce a super-large and fusion device.

Then you can convert a huge amount of electrical energy into microwaves, cut the extremely weak stellar magnetic inductance lines, and finally generate thrust.

The greater the amount of power.

The stronger the thrust.

Although non-working fluid engines also consume fuel.

But compared to engines with working fluids.

Working fluid engines are more fuel-efficient.

Take, for example, the Dragon nuclear reactor.

One ton of nuclear fuel can produce a year's worth of thrust.

Naturally, it is not comparable to traditional working fluid rocket engines.

However, although the dragon fusion reactor generates an astonishing amount of electricity.

But the weight is too heavy.

Overall not cost-effective.

In order to complete the new shipboard fusion engine, the fusion engine needs to be miniaturized.

Fortunately, Suhan now has a lot of technology to miniaturize the fusion engine.

This also gave Su Han the confidence to cross the interstellar voyage in an instant.

In addition to nuclear fusion working fluid engine technology.

There are also some more advanced weapons technology.

For example, a weapon called an energy cannon.

This energy cannon can shoot light energy in the form of one piece.

Like a cannonball.

The speed is amazing.

Half the speed of light.

The power is naturally not comparable to laser weapons.

There is also a weapon called the Super Hydrogen Bomb.

It is more than 200 times more powerful than the largest hydrogen bomb on Earth.

It reached 10 billion tons of equivalent.

You must know that only 50 million tons of hydrogen bombs can cause an entire continent to move horizontally.

The power of the hydrogen bomb with a yield of 10 billion tons is absolutely unimaginable.

Su Han even suspected that a single one could destroy the entire earth.

Because now all the nuclear weapons in the world together are 10 billion tons.

This hydrogen bomb alone is equivalent to all nuclear weapons in the world combined.

It's horrible to think about.

However, the production conditions of this hydrogen bomb are also relatively harsh.

A large number of nuclear bombs are needed as detonating devices.

So it's not so easy to produce it.

At least Su Han doesn't have a nuclear bomb in his hand now.

It seems that the future will also be an important task for the collection of nuclear materials.

Of course, in addition to these technologies, there are other technologies.