Chapter 164

Chapter 164 Propellers

“It’s not impossible to make a detour, but before that, we need to remodel the raft.” Ye Qing thought about it for a while and said to the two women.

“Remodeling?”

The two of them were at a loss. They were just a raft, how should they be remodeled?

Zhao Ling said, “What are you going to do?”

Fanny also looked at Ye Qing curiously.

Ye Qing organized a word, and then said: “Look, although this raft is very convenient, it also has a fatal flaw. Once it reaches the deep sea area, the bamboo pole can’t support it to the end, and it will lose the driving force and the right direction. Master, if we go around, we must pass through the deep sea area, so once we get there, we will become rootless duckweed.

Can you pin your hopes on the push of the waves, what if the waves push farther and farther?”

When the two women heard it, they immediately fell into contemplation.

Ye Qing was right. For example, before suddenly entering the deep sea area, the bamboo pole couldn’t touch the bottom, and it was almost sucked in by the vortex.

Zhao Ling groaned, “You mean, how many extra oars do we need to build?”

“no.”

Ye Qing smiled mysteriously, and then looked at Fanny, but Fanny was at a loss and asked: “What are you looking at me, I don’t know what you think.”

Ye Qing was speechless, saying, “You still say that you grew up on the sea all day long. Isn’t there any other way to make the raft move forward except for the oars?”

Fanny didn’t have 490 good air and said: “We are in a sailboat, which is propelled by wind.”

Ye Qing suddenly thought that Funni came from five centuries ago, staying together for too long, and forgot…

Just as he was about to explain his thoughts to her, Zhao Ling suddenly spoke: “Could it be that you are going to add a propeller behind the raft?”

“right!”

“Then how do you make it, this thing is very difficult to make, right?”

Ye Qing smiled and said, “We can make a simple one. Have you ever played Yo-Yo?”

“What is it?” Zhao Ling was startled.

Ye Qing was speechless. As soon as she saw the reflection, she knew that she hadn’t played before, so she had to say: “Well, even if you haven’t played, you should know, what is a yo-yo?”

“I know, this thing has a long history. It is said that some people used this thing to hunt in ancient times. After throwing it out, they would fly back. But what does this have to do with the things we are discussing now?”

Ye Qing said: “Of course it does matter. I plan to install a spiral award under the raft, and then tie a hemp rope to the central axis. ) Come in, can you understand?”

“What the hell are you talking about?” Fanny looked blank next to her, listening to these words as if she were listening to a book.

Zhao Ling understands it here. Ye Qing intends to apply the working principle of the Yo-Yo to the spiral award. Wrap the hemp rope around the spiral award axis. After pulling the hemp rope, the propeller will follow. Rotate.

You can wait for the spiral award to rotate to the end, because the hemp rope has been pulled, and the power that can be rotated has not disappeared. This force will make the spiral award continue to rotate, and then rewind the hemp rope in the opposite direction. Pull the hemp rope regularly. Once it is tightened and loosened, the spiral award can be rotated forever.

But soon she had problems again, saying: “But the underwater resistance is so big, and the water on the bottom of the sea can also share a lot of strength, can you do this?”

Ye Qing smiled and said: “Theoretically, it is possible. Don’t forget. You said it yourself just now. The yo-yo was used for hunting in the past. Think about it. After the yo-yo flies out, it hits the prey. Resistance? But he can fly back by himself.

As long as the speed of rotation is fast enough and the force applied is greater than the resistance of water, is it still a problem?”

When Zhao Ling heard this, he felt that Ye Qing’s statement seemed quite reasonable, and nodded thoughtfully.

Here, Funi’s ears can be heard in the cloud, and she asks Zhao Ling: “You can explain it to me!”



Zhao Ling came back to his senses: “I don’t know this at all. I will show you directly. You will definitely understand.”

Having said that, I found a branch on the shore, then stood up, one end was placed on the ground, the other end was put on a thick leaf, and then a small piece of hemp rope was taken from the raft, opened, and then sent to the long, then tied to The middle section of the branch, then entangled the branch from two different directions.

After a few laps, he grabbed one end of the twine with both hands and pulled it gently. Loose, because the force of rotation has not disappeared, the branches continue to rotate, and the hemp rope itself is re-wound in another direction,

When the strength almost disappeared, Zhao Ling pulled it again, and repeatedly, the branches kept spinning.

Then I explained to her that Fanny is also very smart and quickly understood.

“Although you haven’t seen this kind of thing, your idea should be feasible. After all, air also has resistance, but the resistance of water is greater. If the force we exert on this device is greater than the resistance, then it can. “Fanny pondered for a moment.

Fanny had said so, and Ye Qing had a better heart, and immediately started to take action.

When they came out this time, they carried all kinds of tools on the raft. This time it was no problem. They went straight to the shore and cut down a few trees. Then one by one was connected with hemp rope, and the other was used as a fan for the snail award. Ye, and the other is making axes.

The three people have a clear division of labor and work efficiency is very high. In about an hour, a snail prize is ready.

Ye Qing is the one who made the wooden shaft. Because there is no special tool now, he plans to make a spiral award with fan blades on both ends. After the fan blades are installed, two thick pieces of wood are stretched from the raft, and then the spiral prize is fixed to the two pieces of wood with hemp rope, and then

Tie a hemp rope in the middle of the spiral award, wind it, and then pull it up from the gap in the middle of the logging, and then you can rotate the spiral award to work.

The working principle is similar to what Zhao Ling demonstrated earlier, except that this Spiral Award is larger and more detailed.

I tried it in the water. Although it was a bit difficult, the effect was not bad, and the speed was faster than when I used bamboo poles to support it before.

All three of them were relieved, and their faces were happy. Now the raft can sail in the deep sea area.

However, it is not enough to have the screw pulp. The screw prize can only be regarded as the driving force to push the raft forward. If you want to grasp the direction of the raft, you need wood pulp to control the direction.

But the production of wood pulp is much simpler. Ye Qing used a machete to cut the two pieces of wood for a while, and the wood pulp with the appearance of the two oars was finished, tied to both sides of the raft to control the direction. .

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