In the afternoon, the woodcutters returned to the tribe, and the logs held by the giant deer overwhelmed the weeds along the way, making it look like a green road.

With the wood, Wang Lang asked Kong Yi and them to rest, and he took people to process the last part.

Wang Lang didn't know how the ancient carriage connected the axle to the carriage, so he could think of two palm-wide wooden planks, and carved this semicircular hole on the wooden board that was larger than the diameter of the axle, so that the hole could be stuck with the axle.

The trees cut down this time are much thicker than the previous ones, and the hardness is a few points stronger than those used for axles, which makes the processing several times more difficult.

Such a hard wood reminded Wang Lang of a kind of tree he had read in a popular science book, he had forgotten what the name of the tree was, but he remembered that its hardness could even be comparable to steel, and the hardness of this kind of tree now, although it was not far from that kind of strange tree, but it was also amazing.

It wasn't until the evening that the crowd made two wooden planks, and with such a hard wood, Wang Lang estimated that the vehicle should last longer.

At night, Kong Yi and Bark fell asleep in a simple shed with the new members, and Kong Er and the forest leaf worm returned to the fenced grass house.

Wang Lang sat on the wooden pier, looking at the Milky Way in the sky, stunned.

Although the vehicle will be built tomorrow, there are still a series of problems that have not yet been solved, whether this most primitive vehicle can withstand the test of practice, Wang Lang is a little uneasy in his heart.

There is no road on the grassland now, Lu Xun said that there is no road in the world, and there is a road when people walk more, but now there is no sheep intestine path, even if the terrain on the grassland is quite flat, but the weeds more than half a meter high are also a headache.

Solving a problem will lead to a new problem, which makes him feel extremely upset, and now he wants to do nothing anymore, eat and sleep every day, sleep and eat, and wait for death, he can look back at the snoring clansmen, and there is a voice in his heart telling himself not to give up.

Wang Lang sighed, lying on the ground casually, tossing and turning and unable to sleep.

When the morning sun shone into the tribe, Wang Lang opened his eyes a little confused, shook his head a little swollen, last night's insomnia made his spirit sluggish.

After washing my face with water and sobering myself up, I hurriedly ate breakfast and started a busy new day.

Wang Lang asked Bark and Kong Yi to take their men to clear the weeds, while he and the rest of the people finished the rest of the vehicle.

Yesterday the planks were made, and today it is only necessary to chisel out the semi-circular holes.

If you want to carve out holes as round as possible, you must use a compass, Wang Lang found three wooden sticks the thickness of chopsticks, tied them into an A-shape with a thin straw rope, measured the radius of the axle, smeared the head of this simple compass with green grass juice, and drew a semicircle slightly larger than the axle on the board.

After drawing the shape, the rest was pure manual labor, Wang Lang asked people to carefully chisel along the arc, and after two or three hours, the semicircular structure of the two planks was finally completed.

Because the wood was too hard to use copper nails, Wang Lang had to try to use a mortise and tenon structure to link the part to the wheel.

After a lot of work, the body was finally finished, and finally the wheels were put on, and the world's first real car was born.

Wang Lang calmed down his excitement, called seven or eight people, and placed the heavy carriage on the axle.

When the wheels hit the ground, the world's first car was fully assembled.

People excitedly looked left and right around the car, and several children crawled around in the car, and after a while, their mothers caught them one by one, and slapped them a few times, quieting these naughty children.

Wang Lang ignored the crying children, and asked Kong Yi to take out the harness he had prepared, and ordered Bark to go to the fence and bring a doe over.

The male deer temperament is more irritable, when riding, it is fine, if you let it pull the car, Wang Lang is estimated to be difficult to control, although the doe is smaller than the male deer, but in terms of size and strength, the doe is even better than the horse, and the temperament is also more docile than the male deer, more importantly, the doe does not have that pair of huge antlers, so that the vehicle can be modified into two or even three horses at the same time.

It didn't take long for Kong Yi to lead the doe over.

Wang Lang asked a few people to put the prepared harness on the doe, and the doe, who had never pulled a cart, didn't like the things hanging on her body very much, and paced back and forth trying to get the things off her neck.

Wang Lang sat sideways on the wheel, recalling the appearance of those coachmen in the TV series, waved the branch in his hand, and gently slapped it on the doe's buttocks.

"Drive!"

The doe squirmed, but had no intention of moving forward.

Wang Lang looked at everyone's blank expressions, and suddenly felt a little embarrassed, jumped off the wheel, and walked forward with the rope around the doe's neck.

The start of the car was a bit laborious, and the part where the axle was connected to the carriage made a tooth-squeaking sound, and Wang Lang couldn't wait to plug his ears, the sound was as uncomfortable as scratching glass with a stone.

The sound that gave people goosebumps was much quieter after the vehicle had been driven for a while, and the squeaky sound was barely bearable.

As soon as the wheels rolled, the doe pulling the cart became much more relaxed and circled the tribe with ease.

Due to the simple correction of the ground in the tribe and the long-term trampling of the people, it has become very smooth and hard, and if you want to test whether the vehicle can be used, you still have to walk around the grassland to be sure.

Wang Lang asked people to open the wooden door, and after leading the deer cart out, he said to the people who followed behind him: "Go up a few people, and I'll try the weight-bearing capacity of this car." ”

The people, who had long been itching, heard Wang Lang's words, and immediately rushed over, but it didn't take long for the three people to jump into the deer cart with envy under the scolding of the bark three miles long.

Wang Lang smiled and said, "Sit tight and go!" ”

The three of them grabbed the plank nervously, their expressions were as resolute as those of warriors about to die, and solemnly said to Wang Lang: "We are ready!" ”

Wang Lang nodded, and led the doe forward, the weight of the three people together with the bark was estimated to be more than three hundred catties, which added so much weight, the doe pulled the car hard, and the two heavy wheels overwhelmed the weeds along the way, leaving two finger-deep rut marks.