There is something like a thick tree trunk lying horizontally on top of the Great Ming Dynasty, but it is made of iron. There is a chimney on it. Behind this thing is a square small room that people can stay in, surrounded by A few pieces of glass are just enough to allow people inside to see what's going on outside. And underneath this cylinder is a machine with a connecting rod. The connecting rod of the machine finally reaches the bottom wheel. There are four wheels on each side. These wheels are made of iron and are all connected together through connecting rods. Such a lump of iron weighs several thousand kilograms. Only the Taizhou Ordnance Bureau can provide them with so much high-quality refined iron. The steam engine below was built in a factory specializing in steam engine manufacturing in Pingjiang. Shipped here. ???????????????????????????????????????????????????????????????????????????: The rails are connected together by the sleepers below, just enough for the wheels above to run. Now, this rail is only a few dozen feet long. From here, after leaving the Taizhou Ordnance Bureau, you can walk up less than a street. The sky is clear and cloudless, it is a good weather. "Your Majesty, our steam locomotive will undergo its first test today." Right next to the iron lump, James said. Beside Chen Feng, Lan Yuhan, Jiao Yu and Juliet were all observing this behemoth. In their eyes, this thing was really ugly. Juliet also followed Chen Feng¡¯s footsteps and came to Taizhou. Since she brought James and others to China-Earth, she also participated in today¡¯s steam locomotive test. "Well, this is the first test, it doesn't matter if it fails, just find out where it failed and make improvements." Chen Feng said. Before the test, Chen Feng said that he was going to fail. After hearing this, George said: "Prince, don't worry, it won't fail." The steam engine is now fully mature. In fact, it is just to shrink the set of things on the ship. It's just put on this steam locomotive, it's not technically difficult, and several people are very confident. The fire under the boiler was burning continuously, black smoke rose from the chimney, and the water in the boiler began to slowly heat up. George personally got into the glass cab, which only accommodated two people. Now, one of them was a laborer and was constantly filling coal. George looked at a gauge in front of the cab. The pressure displayed on it was getting bigger and bigger. Finally, it was time to start. George pulled the drawstring on one side, and suddenly, the sound of "woo, woo" sounded. Seeing that many people were watching, George released the brakes with great satisfaction. Controlling this steam locomotive is actually very simple. It mainly consists of a valve and a brake. The valve is for steam. Only when steam is supplied can the steam engine be operated. The other is the brake handle. Behind each wheel, there is a friction block made of animal skin. When the friction block contacts the wheel, it can slow down and stop the wheel. Come on, this is what George improved based on the principles of bicycles that Chen Feng told him. As the valve was opened, countless steam poured into the steam engine, and white smoke puffed out from inside. Then, the huge wheels began to rotate slowly, and the huge steel locomotive also began to rotate slowly. Moved slowly. "It's moving, it's really moving!" Some of the people watching around him shouted out involuntarily, with surprise on their faces. Although steam engines have begun to be used in the Taizhou Ordnance Bureau, until now, all vehicles rely on either human power or animal power, and there are no vehicles that can move by themselves without relying on these. Therefore, they are very curious. "Woo, woo." George continued to pull the horn, driving faster and faster under everyone's gaze. Leaving the Ordnance Bureau and driving outside. "Look, what is that!" Pedestrians on the bus suddenly looked at the iron lump in surprise. Everyone's mouths were wide open and they couldn't close them. George continued to play the horn. Seeing the even more surprised expressions of pedestrians, George felt satisfied. Fortunately, there were soldiers standing guard next to the railway tracks to prevent pedestrians from coming up to watch. Ahead, the end was still a few dozen feet away. George pulled the brakes and closed the valve at the same time. The steam locomotive continued to move forward, getting slower and slower, and finally stopped just ten feet away from the end of the track. As if to show off, George pulled the rope a few more times, listening to the whistle of the train and looking at the crowd outside, George felt proud. "Hey, what is this?" A man named Taizhou mustered up his courage and asked George who came out of it. "Steam locomotives will no longer be available in the future."Oxen and horses have come to pull the carts, and if you want to visit relatives in Yangzhou, you can also take a steam locomotive. "George said. "Seeing that the front of your car is on fire, it would be more appropriate to call a train. "Another person said. "Train? George took a look. Because there was so much coal filled just now, even the chimney seemed to be on fire. It was really a train. "This name sounds better. I will go back soon and ask for instructions." My lord, it would be better to rename it train! Yes, it¡¯s time to go back. Looking at the Taizhou Ordnance Bureau far behind, George got on the train. Suddenly, he was shocked. Oops, he can¡¯t go back! George suddenly frowned and looked at the people around him. The guard said a few words, and then hurried back, "Your Majesty, the steam locomotive can't come back. "The guard said to Chen Feng who was waiting in the Ordnance Bureau. Can't come back? Chen Feng asked: "Is it broken? " "It's not broken, but it can't be driven back. George asked the prince to find some people to push the steam locomotive back. " Hearing what the guard said, Chen Feng remembered that this steam locomotive has a problem, that is, it can only move forward, not backward! " Today's machinery is the most primitive. The steam engine has only one direction of rotation, and it can only drive the wheels in one direction. If we go forward, there is only one railway track, and we can't turn around, so George is faced with such a dilemma: "Let's go out and take a look. "Chen Feng said to the women around him. When they walked outside, they saw from a distance that George was mobilizing a group of people to help him push the cart. "It's a pity that although the people worked hard together, this The steam locomotive still didn't move. The confident and unrestrained attitude just now has turned into embarrassment. George directed the surnames to push the car, watching the car not moving at all. Big drops of sweat fell on his forehead. George looked into the distance. Chen Feng, who was walking around, couldn't help but lower his head. At this time, of course Chen Feng couldn't criticize him. In front of so many people, he could only encourage him, "Our steam locomotive will be tested for the first time today. As long as it can start. It is a success. It has come so far and completely exceeded expectations. Now, let¡¯s push this steam locomotive back according to the original plan. "Chen Feng said loudly. When Chen Feng said this, George immediately felt relieved. The prince completely protected his face and said that this was completely planned. Why didn't he think of it just now? However, this steam locomotive, push "George, according to our original plan, if the manpower can't push it, what will we do? "Chen Feng asked George. George was not a fool. He immediately thought: "Use a horse! Pull it with oxen! " When the people around him heard this, they immediately got ready. Soon, dozens of animals were brought in. " There were many ropes hung on the back of the steam locomotive, and each rope corresponded to a head. The animals and slaves shouted slogans and worked hard together. Sure enough, the animals were stronger than people. These animals pulled the steam locomotive. Finally, it was easier to get down as long as it moved. The animals continued to pull. , finally pulled the steam locomotive back to the Taizhou Ordnance Bureau. Juliet was on the side, smiling from ear to ear: "George, doesn't your steam locomotive use manpower and power? Why were so many animals pulled back? " George blushed and said nothing. Although James, Surrey and others did not follow, they also knew that this was a loophole and must be modified. " In the past, steam engines were used to drive ships, and ships did not need to retreat, so, There is no such problem, and the carriage on land will almost never retreat, as long as it turns around. However, on this steam locomotive, walking on two rails, the live tuotuo example just now has confirmed that the steam locomotive cannot retreat. , is not practical. ¡°We must allow the steam locomotive to retreat, otherwise, this steam locomotive will not be put into operation. "Finally, James said firmly. "Well, I think we can add a set of gears in the middle. " George said. "George is a watchmaker and is very familiar with gears. Now, as long as you add a set of gears, you can change the direction. The principle he proposed is the gearbox used in later generations of cars. "No, add gears, We simply don't have room to add. James said: "We can change these connecting rods and make the wheels directly reverse under the steam push." "The two immediately started arguing. Chen Feng did not participate in their argument. This kind of technical issue was left to them. In the end, they will definitely be able to negotiate the best result." Chen Feng smiled:??We are not in a hurry to put it into use immediately. We will solve this problem first, and we will also build some more carriages and hang them on the front of the steam locomotive to see how much it can pull. If you continue to work hard, I believe these problems can be solved. " After Chen Feng finished speaking, he turned around and left. Just as he was about to leave, Liu Gouer had already hurried over: "Your Majesty, there is news coming from the west. "The news from the west is naturally the news from Dongsheng. There is only one good news at this time. Is coal starting to be dug? Chen Feng took the information handed over by Liu Gouer and opened it. His face The smile is blooming Hey, want to read this book for free? Follow WeChat: and read] (.) Power is great.