Chapter 528: Big and small

The Qin people have a strong festive atmosphere. Especially after everyone imitated Shangwen and posted red paper. The whole Xianyang looks very festive. Traditional festivals also have new highlights. That is a lot of wonderful sports events.

The second day is the time when the events are concentrated. Racing, shooting, riding and so on. People went out of their homes to watch these exciting events. Watching the game has become a new program after the festival. Sports events attract a lot of attention with his unique viewing.

Race, shoot, ride horses. These are all related to the military. Part of it is also related to the physique of the strong Qin people. But some are purely technical competitions. Such as racing.

The car is not very interesting. Because, some small carriage races have also been held before. Most of them are four-wheeled carriages. These carriages are a contest between the masters of driving in the city. Later, although bicycles were added. But bicycles and carriages are not in the same order of magnitude at all. So bicycles separately requested the establishment of a special event. Thus. The observability of the car has been reduced a lot.

However, this car in the second grade attracted a lot of people at once. Because this time a "big guy" appeared.

The competition was first selected by various carts and horses. In order to encourage people to participate, the first prize was 10 gold. Therefore, some horse riders are still willing to participate. And some people want to get these ten gold bonuses. They also modified the carriage.

The purpose of the modification is to reduce the weight of the car as much as possible. For example, the number of wheels has changed from four to two again. The two wheels are also bicycle wheels. Because the weight can greatly reduce its own weight. This modification had a great impact, and many people began to modify the carriage specifically to win the race.

Just when people focused their attention on how to modify the carriage. A middle-aged man named Meng Bao participated. The difference is that his car is made of a steam engine.

Meng Bao is a mechanic. He is fascinated by the mechanics. He believes that horse-drawn carriages cannot run trains, and trains use steam engines. So he built a small boiler equipment himself. Later, he imitated the tractor track and used it as a walking device. From production to development of this big guy, he spent seven days of work. during the New Year. He is studying.

Although his racing car uses a small boiler equipment. But it was still a huge "big man." The tall chimney was smoking black smoke. The entire captain is actually two feet tall. The height is almost one foot high. Such a big guy drove up, booming. It is for this reason. Many people are attracted to watch the game.

Standing on the high racing car, Meng Bao kept busy operating with his hands and feet, and his face was blackened by the black smoke coming out. This big guy has no steering wheel. Some only have a joystick. There are four joysticks in total. When turning, stop one track, and then turn the other track. A small coal-pulling vehicle was dragged behind the car. Meng Bao also kept adding some coal to the boiler with a shovel.

Because this guy is too heavy. His speed can't be mentioned at all. People can catch him when they spin around the car. But Meng Bao didn't plan to win the game for the first time. What he wants to declare is that the machine will eventually defeat such a horse.

Some carriages ran past him quickly. It seems to be laughing at this big man. People followed him curiously. After all, this is the machine moving again.

At this moment, a small car came up behind the big one. This car is also very weird, it is a tricycle. The whole body is very light. Some places even use wood planks.

But there were two big pillars in front of him, and Meng Bao knew that they were the Pistons.

"Hi. Are you in the race too?" There was a young man in the car.

"I can't hear what you said." Meng Bao shouted loudly.

"I said, are you here to participate in the competition?" the young man shouted loudly. The sound of the steam engine is loud. This made Meng Bao a little confused.

"En." Meng Bao replied simply.

The young man raised a thumb high to indicate his efforts. Then walk away. This young man drove an early car. The difference is that instead of gasoline, he uses diesel.

The discovery of the diesel engine was actually very accidental. After people discovered that the use of gunpowder to ignite the piston can push the piston to move, they have never studied it in depth. The reason is that they cannot find a reliable thing to replace gunpowder. Because, under certain pressure, gunpowder can sometimes be detonated without special ignition. As a result, this experiment was abandoned.

But with the rapid development of Qin's economy. Especially when there is a large-scale demand for asphalt. A large amount of gasoline, kerosene, and diesel began to appear. People discovered the role of kerosene. Especially after adding a glass lampshade. The demand for kerosene began to become a big demand like bitumen. But gasoline and diesel are not very useful. These two are mainly used as fuel. But his burning speed is too fast. Or it may be volatile and cause some accidents. All the carriages could be burned out during transportation. Therefore, gasoline and diesel have always been treated as waste oil, except for military use. No one wants other commercial uses at all.

And this time, it was the young man just now. He is a chemistry student at Qin Guo University. He took two courses at the same time. Qin Guo's university courses are still not standardized. The semester of students is often calculated according to the amount of study and research results. If a student has a great discovery in a certain field. Soon, he became a teacher in this area.

Northern refineries are beginning to worry about the constant backlog of gasoline and diesel. Because these things are easy to explode, but no one wants them. So the student began to study gasoline and diesel.

Once, he conducted a compression test on gasoline. He tried to use a compression test to see if the other party could generate a new substance. Unfortunately, no success. But when testing on diesel. When compressing. Suddenly the airlock was pushed open. This accidental discovery. It made him very surprised. After a series of tests, he found that the ignition point of diesel is lower than that of gasoline. This discovery cannot solve the usefulness of diesel. When he was in the mechanical department. The teacher gave him a lot of inspiration when he was explaining the principle of the steam engine. That is to use compression to ignite diesel fuel to complete a mechanical action. So he began to conceive. the study. Finally, a diesel internal combustion engine was developed.