Because the mass of planet Rutan B is slightly larger than that of Earth,

Therefore, the second cosmic velocity derived from the mass of the celestial body is also a little larger.

However, this speed limitation is not a problem for aerospace technology in this era.

Even if he was driving only an incomplete remnant,

Nor does it affect his march in space,

After all, there is no effect of air resistance in space, and the shape of the spacecraft does not need to be considered.

Even if the ship will become T-shaped, M-shaped, and D-shaped,

As long as the structure of the spacecraft can withstand a certain amount of acceleration,

Any shape is fine.

Of course, if the speed of the spaceship reaches a certain value,

It is also necessary to consider the shape and structure of the spaceship, after all, although the universe is a vacuum, it is not a vacuum state with nothing.

What do you still hit at extremely high speeds......

At this time, Yang Meng's spaceship speed did not need to consider those problems.

The spacecraft accelerated a little, and after about three hours,

Through the precise control of the orbital computer on the spacecraft,

Yang Meng's spacecraft was thrown out at a speed of more than 16 kilometers per second, with the help of the gravitational pull of Planet B.

And then there's the process of accelerating the spacecraft.

And the power of such acceleration comes from the small thrusters on both sides of the spacecraft.

"How can such a small thing propel such a large spaceship?"

The little light in front of the porthole noticed the thrusters on the flanks of the ship,

"It's not one, it's a few ionic thrusters that make up the propulsion unit!"

Yang Meng, who was determining the status of the spaceship with Xiao Yi, responded when he heard this,

"Ion thrusters?"

Xiaoguang's puzzled voice sounded again.

Hearing Xiaoguang's doubts, Yang Meng slightly explained the principle of the ion thruster,

After all, Xiaoguang inherited the knowledge of an ancient civilization,

Although it had not been able to enter space before, under Yang Meng's explanation, it was still able to understand the principle of ion thrusters.

"I see!"

"It's really possible to propel things with a stream of charged high-speed particles!"

"This path turned out to be the right one!"

"But what are we doing wrong?"

"That's right! It's the heavy element, and our planet lacks the heavy element......

"You're so lucky!"

Yang Meng, who was originally determining the data with Xiaoyi,

Seeing that Xiaoguang kept talking to himself there, he sighed silently in his heart.

He didn't know what to say about what happened to the Rutans.

He just turned his head to look at the Rutan B planet in the porthole, which had shrunk a circle,

I suddenly felt that on such an ancient planet where heavy elements were scarce, it was a miracle in the universe that there could be a civilization that continued to this day.

"It's a pity that in this environment, the development of high-energy physics is bound to be limited!"

In the understanding of normal people,

If the civilization on a planet has not entered the interstellar age,

Most of the elements on this planet should be roughly unchanged in total amount.

Just as iron is iron, copper is copper, gold is gold,

They cannot change from one another, from stone to gold,

And even if these elements are used and made into various products, they can be reused through recycling.

So as long as you don't shoot things into space,

The total amount of resources available on a planet does not change in a short period of time.

But everything has changed in high-energy physics,

For example, mercury and gold appear to be two unrelated elements.

When mercury is placed in a large particle collider,

Mercury can be struck into gold by knocking out one of the protons and electrons in the element mercury with high-energy rays.

Of course, this kind of practice of consuming tens of thousands of kilowatt-hours of electricity to knock out a gold atom is usually not tried.

And in real life,

The most common is the fission of radioactive material.

The so-called fission is that a substance will crack up and become other substances when it is placed there.

For example, uranium, which was first used in atomic bombs,

It's an element that cracks itself and turns into other substances.

Different uranium isotopes, the products of their fission are also different,

Some uranium will go through a series of fission processes and finally become lead.

Some uranium will fission into barium and krypton.

And this state also means, as long as the time is long enough,

Heavy elements such as uranium will eventually disappear and become elements before the periodic table,

And on the periodic table,

Most of the heavy elements after uranium are as radioactive as uranium.

And these heavy elements crack faster than uranium over time,

If a planet is old enough, these heavy elements may all disappear and fission into pre-periodic elements.

"This may be what Xiaoguang said, why are human beings lucky?"

"The earth has enough heavy elements to support mankind's breakthrough in nuclear technology, high-energy physics, and finally controlled nuclear fusion technology!"

Thinking of this, Yang Meng looked at Xiao Guang, who was still talking to himself there,

"But are humans really lucky?"

Yang Meng had noticed before that in the last few columns of the periodic table, starting from the third heavy element after uranium, they were all man-made elements.

Artificial elements mean that they can no longer be found on earth.

It can only be synthesized artificially by means of high-energy physics.

"If humans had appeared a little later, or if the earth had existed for more than nine billion years, like Planet Rutan B,

Will the human race be like the Rutans, who can only stop here,

Eventually, the search for remnants of depleted uranium-238 on the planet is seen as the last hope. ”

Yang Meng didn't know,

History can't assume, and he doesn't know, if mankind has never broken through controlled nuclear fusion technology,

What happens if you continue to wander around that little planet,

Fortunately, human beings don't need to worry about those things anymore.

Because fusion is a polymerization process that is distinct from fission, new elements are produced after the periodic table.

For a long time, human beings don't need to worry about encountering such problems as the Rutans.

……

The spaceship continues to accelerate,

Xiaoguang also returned to normal, floating in front of the porthole as usual, and continued to look at the planet that was gradually getting smaller and trapped them for countless years,

Yang Meng didn't know how Xiaoguang felt at this time,

Just by the frequency of flashing on Xiaoguang's body, it can be seen that Xiaoguang's mood at this time may not be calm.

Yang Meng didn't bother Xiaoguang, but asked Xiaoyi about some information:

"How's the satellite system for the third planet?"

"Probe data is being updated, please ...... later"

"I don't know what the resources are there?"

He didn't have much hope for the heavy elements after uranium.

This galaxy is so old that the elements behind the uranium may have almost fissioned.

He only hopes that it is a heavy element before uranium, and there is still hope for mining?