Because Lao Liu Tou and the others had never systematically learned the basic knowledge from another world where science and civilization were prosperous, as He Wei did, the thinking of the three of them was seriously limited, especially in the face of automatic machines such as internal combustion engines, it was not easy to figure out how they worked. Pen, fun, and www.biquge.info

It's impossible to get them to think about things while understanding how it works.

For example, now. I just heard from He Wei about the method of correctly installing propellers on a sailboat and using an internal combustion engine to drive the propellers, so that the sailboat can move freely on the water without the help of manpower and wind.

Therefore, Lao Liu Tou drew a gourd in his heart, and directly applied this method of using propellers to let sailboats move freely to the carriage - directly installing a propeller on the butt of the carriage, and then using the reverse thrust generated when the propeller rotated to push the carriage to move.

When they heard He Wei say that there was another way to change the propeller into a gear, or a transmission lever, to drive the carriage to move, Lao Liu Tou and the others fell into hard thinking again without any suspense.

The old Liu Tou of gears has done a lot with his own hands, large and small, and the old Liu Tou of various sizes have been in contact. And the transmission lever ...... Although Lao Liu Tou has never made it himself, he has at least seen this kind of thing and knows what it is and what it is for.

However, even Lao Liu, who has made a lot of gears with his own hands and knows what the transmission lever is and what it is used for, is still completely confused and incomprehensible after listening to He Wei's words.

Even Lao Liu Tou couldn't understand it, let alone Jin Cheng, who had never seen a transmission lever, and Jin Ling'er, who didn't even know what a gear was.

The three of them frowned and thought hard for a long time, but they still didn't have any clue. In the end, after seeing that the three of them obviously didn't understand what they just said, He Wei had to explain: "Actually, it is equivalent to saying that it is not to let the internal combustion engine drive the propeller to rotate, and then drive the carriage through the reverse thrust of the propeller." Instead, the internal combustion engine was used directly to drive the wheels of the carriage to turn, so that the carriage could run on its own without relying on any external forces. ”

"Drive the wheels directly with the internal combustion engine?" He Gongzi means ...... Use the propeller as a wheel?!" Old Liu's eyes lit up and he hurriedly asked.

"Uh...... You can say the same thing. He thought about it, and vaguely remembered that he had read in a certain magazine that the oldest car in ancient times seemed to have wheels directly connected to the internal combustion engine, and there were no gears or transmission levers or anything like that in the middle.

"Just change the propeller to wheels, in that case, the carriage might be able to run. But...... In that case, two internal combustion engines would have to be installed on each carriage, right? This weight is not light!" Jin Cheng said.

From Jin Cheng's words, it is not difficult to hear that he already has a rough image in his mind about the structure of the carriage that He Wei just said. However, because he had not seen it with his own eyes, the structure of the carriage was entirely based on belief, and because Jin Cheng did not know much about the internal combustion engine, he made a wrong inference about the number of internal combustion engines needed on each carriage.

"But I don't understand. Even if you can use this method to make the carriage run, but ...... If there is no horse, where should the carriage be set? A carriage with only two wheels can't stand up at all, right?" As soon as Jin Cheng's words fell, Jin Ling'er immediately asked.

After listening to Jin Ling'er's question, He Wei couldn't help but feel a chill. I said, Miss, although Young Master Ben knows that you are stupid, you don't have to be so stupid, right? What does it mean that a two-wheeled carriage can't stand up at all? Is it true that in your cognition, all carriages without horses are lying on the ground and can't stand up?

"Add wheels in front, Miss, as long as you add one or two more wheels in front of the carriage, won't the carriage be able to stand up on its own?" He said with black lines on his head.

"Wheels in front?hmm...... A carriage with four wheels can stand up. But...... If there are two more wheels, won't we have to add two more internal combustion engines? At that time, a car has not yet pulled people, but has pulled four internal combustion engines on it, so that it will be difficult to increase the speed, right? If the running speed is not as fast as the horse at that time, then it will be meaningless to waste so much time to change it back and forth, right?" Jin Ling'er opened her mouth for the second time and asked again a question that could make He Wei hold back his internal injuries.

However, fortunately, this problem is "too white", so there is no need for He Wei to take action in person, and the old Liu Tou on the side directly asked He Wei to explain.

The two wheels of the carriage are connected by the same bearing, so that if one of the wheels turns, the other wheel will also rotate with it. So, even adding two more wheels to the carriage would end up just adding one more internal combustion engine. Lao Liu Tou said, "Although carrying two internal combustion engines, the speed of the carriage seems to be limited to a certain extent, but compared with using a horse-drawn carriage, the internal combustion engine also has its advantages that cannot be ignored." Therefore, it cannot be said that this improved carriage is necessarily inferior to the original carriage. ”

All right!

The emotional old Liu Tou is also half-understood, although he explained that the head is the Tao, but he still failed to grasp the point.

He was helpless, so he had to speak: "First, if you have to use four internal combustion engines, or two internal combustion engines as the power source of the car, it is not impossible. But since you've talked about the concern that four internal combustion engines will add weight to the car, it's important to say that just one internal combustion engine can also drive the car. ”

"An internal combustion engine? ...... a story"

Jin Ling'er obviously didn't agree with what He Wei said, and wanted to interrupt, but He Wei didn't give her a chance to take care of herself and continued: "Second! The internal combustion engine you see now is to be installed on an airplane, with high power, a lot of materials, and naturally a large weight! If it is an internal combustion engine to be used in a carriage, then there is no need for such a large power, and the weight will naturally be much lighter!"

"How light can it be?" Jin Ling'er asked with a straight face. Obviously, He Wei's behavior of interrupting her just now made her very unhappy.

"How light can it be? This ...... It depends on how big the car you need and how good Liu's skills are. Theoretically, you can be as light as you want!" replied Ho.