He looked at the long queue waiting for the test next door, and didn't see Dong Zhigang for a while. Thinking that he didn't know when it would be after he finished the test, Li Shan didn't bother to look for him, so he sent him a message and left alone.

Li Shan walked out of the building and found a vacant lot nearby, eager to try the drone that Lao Gu gave him.

For Li Shan, the field of drones is still very unfamiliar, and he doesn't know how to control it for a while.

In addition to giving him the drone body, Lao Gu also has a remote control, he looked left and right for a while, and looked at the buttons on the remote control It didn't seem to be too complicated, it should be quite easy to use.

There is a small switch on the remote control and the drone, he pushed the switch to the ON position respectively, and then carefully put the drone on the ground, tried to fiddle with it, and after a while he knew the function of each button on the remote control.

When the drone slowly flew off the ground, Li Shan inexplicably felt a sense of pleasure in his heart.

When the drone flew vertically to the height of a three-story building, Li Shan no longer rose up, but flew horizontally in the direction.

Li Shan controls the drone to move back and forth, but he doesn't dare to fly too far, one is afraid that he is not proficient in control, if he is entangled in the nearby branches and cables, it will be troublesome, and the other is worried that it is beyond the range of remote control, resulting in the drone being lost, and it is a trivial matter to break the drone, if it hits someone else or crashes into public facilities, it will be a big trouble.

Whether you can control this drone freely depends on the mastery of the remote control. This requires not only good coordination of the hands, but also consistency with the brain's thinking.

Because Li Shan often plays games on the computer, his two hands are quite flexible, and he can complete different movements at the same time, such as drawing a circle with his left hand and a square stroke with his right hand, which can be easily done.

Therefore, Li Shan controlled this drone very quickly. The drone he controlled, moving vertically up and down, backwards, backwards, left and right in a straight direction is not too big, once you want to fly out of the arc, it is a little too powerless, Li Shan knows that this requires continuous practice to master.

"I don't know what it's like to look at the surrounding scene from the air?" Li Shan couldn't help but think as he looked at the drone in the air.

The current drone does not have a camera, if it can be equipped with a camera, will it be able to see higher and farther as Situ Yun showed, and you can also see the mountains, mountains, grasslands, and snow-capped mountains?

Li Shan's heart was inexplicably excited, but after thinking about it, if you want to install these things, don't you need money for the channel?

There are a few people who play photography in the workshop, and those people are not from a solid family, and everyone says that playing photography is the same as burning money, just a lens, and a better one will cost tens of thousands.

Similarly, the camera to be installed on the drone is probably worth a lot of money.

Thinking of this, Li Shan was like a deflated ball, wilting all of a sudden.

Li Shan returned home in a somewhat unhappy mood, and it was not early at this time, so he wanted to rest early.

But lying on the bed, he couldn't sleep, he only felt that his hands and feet were a little cold, and then he realized that the quilt he covered was a little thin.

Now that it has entered the early winter season, it stands to reason that the heating should have come early at this time, but I heard my mother say that there is a problem with the heating pipe somewhere nearby, and it is being repaired urgently, and it will not come for a while.

For Li Shan, who is used to heating in winter, he is really a little uncomfortable, and he is still covered with a quilt in autumn.

Let's change to a thicker quilt.

Thinking like this, Li Shan got up and turned on the light, thinking of looking for a thicker quilt in the big cabinet.

The cabinet is neatly arranged, and it looks like my mother's masterpiece.

I usually don't bother to clean up, and my mother is retired at home, and she is also idle, so she comes in from time to time to clean up for Li Shan, and complains about him from time to time, and Li Shan can only bear it helplessly.

He pulled out a quilt wrapped in a plastic bag from under the cabinet.

This plastic bag should be the kind of vacuumed bag, and the whole is compressed very compactly, so that it is easy to store and can also save space.

The outside exhaust valve was opened, and as soon as the outside air entered, it was easy to open the plastic bag.

Li Shan took out the quilt inside, and just unfolded the quilt, but something fell out of the quilt.

I picked up this thing with some surprise, and when I looked closely, I immediately remembered that this was the mysterious "coal block".

When he first got this "lump of coal", in order to find out what it was, he wanted to cut a piece from it and take it for testing, but he was at a loss because of its hardness, thinking that he would deal with it when he had time later, and then he put the matter down in a hurry.

Li Shan opened the package and saw that its surface was still black and glowing, and there was nothing to see from the outside.

What to do with this thing, I thought to myself, and I pinched it on top of the "lump of coal" at random, and it felt very soft in my hand, as if my fingers were touching a dough, and then I easily broke off a small piece.

Li Shan was already a little sleepy, his brain was still a little unconscious, and he was still kneading a small piece of coal in his hand and rubbing it back and forth, these movements were carried out in an unconscious state, and suddenly, he seemed to think of something, and his brain woke up from the confusion with a cleverness.

I actually broke off a piece of the "coal" from it!!

Li Shan's eyes widened, feeling very incredible.

The hardness of this "lump of coal" has exceeded imagination, and I thought that in order to be able to remove a piece from it for testing, I used a knife to cut it and smashed it with a hammer to no avail, so I tried my best, but in the end I was helpless.

And now he can easily break off a piece with just two fingers, which makes Li Shan not shocked.

He then used his hands to completely break open the rest of the "lump of coal" as well, revealing a white stone about the size of a broad bean.

The reason why it is considered to be a stone is that it is definitely not a wooden material, which Li Shan can still distinguish, and there is no cold feeling of metal, but it feels very warm in the hand, a bit like jade that people often say.

Carefully inspect this white jade under the light, saying that it is white is actually compared with those black coal blocks, it is not pure white, but the appearance is a little light green, pure as water, flashing with active brilliance, that rich breath, so that Li Shan feels extremely comfortable.