Real World Simulator

The stone used to make a stone knife is not just any stone.

Stones with different colors and complex patterns cannot be used, because the texture of these stones is uneven, fragile, and not hard enough.

The yellowish stones are even more unusable. These stones are basically sandstone and quartz, which are brittle.

Look for stones that are uniform in color, dark in tone, with a rounded surface and evenly distributed grain.

This kind of stone has only enough hardness and has the potential to be processed into stone weapons.

Obsidian, flint, and jade are the best stone tool materials.

Fang Yu turned around, but couldn't find anything like flint.

Of these three types of stone, flint is the most common and is distributed all over the world.

Obsidian is generally found near volcanic activities, not to mention jade, both of which have certain geographical location requirements.

Unable to find the flint, Fang Yu could only pick up a few unknown dark round stones in the sea.

These stones should be formed after long-term erosion and erosion of sea water.

The hardness of the wheel is also very high.

After Fang Yu picked out the stones, he took the stones and walked back towards the lifeboat.

After arriving, Fang Yu put the few stones he had picked out on a nearby rock and knocked them against each other.

Gently break the edge of a long strip of pebbles, and break the oval edge into a blade shape.

When knocking, be extra careful not to break it or knock it out of a big gap.

During the period, when the oxygen content dropped to 10%, another warning was issued, prompting to replace the gas bomb.

Fang Yu ignored it, and continued to knock on the stone, and knocked carefully for a long time. After knocking both sides of the long stone out of the edge, he raised his hand and saw that the oxygen content was only 3 %!

Although Fang Yu is very sure, the air outside should also be aerobic, and he has also tested it.

But he's still a little apprehensive.

Anyway, he won't take off his helmet until the oxygen is used up.

Checking the time again, it was at least two hours before the stick was erected.

Fang Yu came to the beach again.

Looking at the unmoving shadow, Fang Yu felt that the scientific outlook for many years was gradually collapsing.

what's going on?

This means that the sun won't move?

No, it's not that the sun doesn't move, it should be the planet under my feet!

The change of day and night is caused by the rotation of the planet.

The length of day and night is because the blue star under the feet revolves around the sun, and it is hot when it is close and cold when it is far.

These principles have been taught in elementary school.

Then according to this principle.

Now comes this unusually long-lasting twilight.

The biggest possibility is that there is a problem with the rotation of the blue star under his feet!

The rotation rate slowed down, resulting in an excessively long day and night.

For more than two hours, the shadow basically did not move, so, if my guess is right.

The setting sun in front of my eyes will last at least a week or so!

A week or so of dusk, and then into the night, calculated in the same proportion, then this night may last for a month, and then turn into daytime.

One month of day, one month of night, there are only six times of day and night in a year!

And if the rotation speed is slower than Fang Yu expected, it may even stop!

All light is no longer maintained by rotation, only by the blue star's revolution and transfer!

In this way, the blue star's day and night cycle is estimated to be only 1 or 2 times a year.

And such a change will bring an extremely terrifying environmental change to Blue Star.

As far as Fang Yu can think of, there are serious consequences such as magnetic field disorder, extreme temperature difference between day and night, mass death of species, and severe damage to the earth's environment.

And it's easy to prove yourself.

Let's see how long this sunset lasts.

Or, given the chance, sail toward the equator.

If the blue star really stops rotating, or if the rotation slows down, then Fang Yu can "chase" the sun all the way.

Either step into the night, or chase the morning in reverse!

"Drip! Drip! Drip! The oxygen is about to run out, please replace the air bomb immediately!"

Fang Yu was awakened by the rapid notification sound.

He knew that he would face another challenge.

The oxygen in the gas bomb has only 2% left, all he has to do now is take off the helmet, and manually replenish the gas bomb while breathing the outside air.

Maybe it was frightened by my own brain hole just now.

Facing this sunset that may last for a week or even longer, Fang Yu suddenly felt that it was no big deal to have no oxygen.

If there is really no oxygen, so much the better!

Whoever loves to treat such a ghost world!

The blue star can stop its rotation. Is this the world background set by carbon-based organisms?

Fang Yu stretched out his hand strangely, and tapped the loose button of the helmet.

With a click, the helmet bounced off the clothes around his neck. Fang Yu raised his hand, took off the helmet, and took a deep breath without hesitation!

The air is sultry, the air is mixed with a strong smell of sea water, and the smell of the soil on the beach.

There still seemed to be some oxygen in the air, but it always felt like it wasn't enough.

When breathing, you always have to take a long breath to feel that the lungs have accumulated enough oxygen, and then exhale the exhaust gas.

It feels like being trapped in a cave.

Even breathing has to work hard to maintain sufficient oxygen.

Because the oxygen was not supplied in time, Fang Yu's body began to release signals spontaneously.

It was reflected in the fact that Fang Yu's mood became inexplicably irritable.

In fact, this kind of oxygen is enough for normal body activities, although it will be a bit laborious.

However, the human body is also a very spoiled guy.

It used to breathe effortlessly before, and it has long been used to it, but now, when it suddenly breathes a bit unnaturally, it will "protest", making the body become irritable unconsciously.

Any oxygen-breathing organism, whose essential need for oxygen can be regarded as a deep oxygen dependent.

Addictive to oxygen, lack of oxygen, will form a serious withdrawal reaction.

Fang Yu knew this, and he also knew that since he had oxygen and could breathe, he would not die from lack of oxygen.

At most, this slight withdrawal reaction made him a little irritable.

But he needs to know whether the air here will cause harm to the body, so he needs to take a risk.

I hope that the oxygen from the outside world will not cause brain damage due to insufficient oxygen supply!

After sighing, Fang Yu directly used the perseverance skill to suppress the inexplicable irritability.

After setting "calmness" as the goal, Fang Yu's mind suddenly calmed down, and her short breathing began to become steady and long.

Now Fang Yu's breathing state is very similar to that when he was sleeping, taking long breaths and long breaths, and the sound of breathing became louder.

After Fang Yu raised his hand and set the timer for another two hours, he began to grope around his right leg.

The oxygen bomb was installed on the side of Fang Yu's right thigh.

After previous encyclopedia inquiries, Fang Yu already had a simple understanding of this set of PT normal protective clothing.

So, groping around the side of my thigh, I unzipped a pocket zipper.

Fang Yu thought it was a pocket before, but after pulling it open, it was empty and could not hold anything.

Now Fang Yu knew that this was the gas tank, and continued to fumble to find the hidden button of the gas tank.

Through the rotation, the live buckle of the air chamber is twisted, and the lid of the chamber pops up.

Take out a black metal tube inside the gas chamber.

This black cylindrical metal tube is the so-called air bomb!