Outside the city of Wanghai.

Mu looked at the two bicycles he had made by himself, but he could only scratch his hair with his hands, as if he wanted to pull it off.

Wood is also a craftsman, he was the best carpenter in Xishan Township in the past, and he was also one of the earliest hunters who knew Lin Bei, and later Lin Bei became the Dragon God Lord, and Wood naturally became a believer in Lin Bei, and he was extremely firm.

Originally, Lin Bei hibernated, Xishan Township was in trouble, and Mu Tou wanted to join the township group more than once, but unfortunately he was blocked by Cui Lan, saying that Mu Tou was an only son, and he had a good carpenter skill, and the role of being a craftsman was greater than being a sergeant, so Mu listened to Cui Lan's opinion.

The development of the steam carriage wood naturally also participated, with some of the craftsman in Hepu County for a few days, wood really learned a lot, his craft became more and more exquisite, and so on to Lin Bei put forward the bicycle, the diligent and honest wood soon made the bicycle, among these craftsmen, wood is the second to make a bicycle.

In the sincere congratulations and envy of the craftsmen around him, Wood knows that although the bicycle is built, whether it can be ridden is the key, otherwise what is there to congratulate on a pile of wood that cannot be moved?

Fortunately, there are a lot of people around to see the excitement, so there is no shortage of people who take a test ride, the wood picked one at random, put the back, let the person step up, this person just stepped on, there was an accident, used to support the back seat and the rear wheel between the support plate broken.

The wood made the man hurry down, checked the lower support, the first thought was that the wood was not good, he just used fir wood, this kind of fir wood is softer, but it will not warp at will, originally thought that this wood should be suitable for bicycles, now it seems that first of all, it must be able to bear the weight of people.

"This man is about one hundred and ten pounds. The fir wood can't bear it, the bicycle runs, it will be heavier, if it hits the mud puddle, the impact between the top and bottom can not be ignored, then use rosewood? No way. Although it is hard, it can't bear it, Nanmu? Seems to be still a little worse, basswood? It's not much different from the hardness of Nanmu. ”

Wood thought about several kinds of wood in a row, and finally felt that it was worse, staring at the support board and thinking hard, the wood clapped his hands for the last time, and the two support plates were not enough, so add a few more support plates. Win by volume.

The wood added a few braces to the front and rear seats of the bicycle, and after getting it done, he pressed it himself, and felt that it should be okay, so he let the man get back on the bike and hold the car himself.

The man pressed the pedal hard, and the bicycle began to move, and the wooden heart was finished, who knew how many times he pedaled. The footpegs were broken again.

"Still not strong."

The craftsmen have made the bikes one after another, and let people come for a test ride. All kinds of problems were found, and the wheels were okay to say, because everyone used the wheels of the unified standard, which were also the wheels of the previous carriages, but the parts were too easy to break, and the bracing. Pedals, gears that need to be turned to drive the wheels forward, especially gears, this kind of wooden gear will break almost two turns of teeth, and the farthest bicycle can travel more than ten meters.

But it's easy to break. But the craftsmen saw the advantage of the bicycle, that is, it was not too laborious, and the speed was really very fast, if the parts were in good condition, the craftsmen estimated that they should be able to travel twenty or thirty miles in an hour, although not as good as a good horse, but they could also travel three or four hundred miles a day, which was several times faster than walking on foot.

"Although the structure of this bike is simple, it is real." The craftsmen all agreed on the benefits of the bike, and now it's time to improve it, how to make the bike less breakable, and suitable for all kinds of terrain that adults say.

The craftsmen began to communicate, pondering what kind of wood to use, and finally the wood said, "How about iron in these perishable places?" Iron is not easy to wear and tear and is much better than wood. ”

The carpenters approached the blacksmith and asked the blacksmith to forge these, the bracings, the pedals and the gears between the pedals.

The bracings and pedals are fine, but when it comes to building the gears, something goes wrong.

Now the blacksmiths in Wanghai City will pour iron, and they all melt the iron into molten iron, and then use sand to cast a mold for what they need, and then pour the molten iron into it, and it will be made after colding, and the speed is quite fast, and the gear is naturally the same, first use the wooden gear to print it on the sand to form a mold, but when the iron gear comes out, a carpenter will install it and shout: "No, this gear is a little bigger, and it can't be installed." "No, this gear is a little smaller, and the tightness is not suitable"

This made the blacksmiths led by the blind Li wonder, they are all the same molds, why are the gears made different? After carefully inspecting the mold, the blind Li found the subtle differences, because the sand mold is sand, it is too easy to get out of shape, as long as it is lightly touched, it is easy to deform the mold made by zhì.

In this way, they can only replace the sand and start using the cement, which is a kind of upgrading, they don't understand that this is actually a kind of progress, and when they need a finer mold later, the cement can not adapt to the requirements of the mold, and they will start to study new molds.

All the fragile parts were replaced with iron, so that the bicycle was much more resistant to wear and tear, and it became less breakable, and this simplest but extremely practical means of transportation was finally made by craftsmen.

When a nimble man rode around the city on a bicycle, everyone in the city was in a stir, and everyone in the city knew that the craftsmen had developed something called a bicycle, which could move forward at a rapid pace without any animal power and with only two pedals.

As the bike ran all the way through the city, the delighted craftsmen began to inspect the various parts of the bike, especially the pedals and gears, and finally found that the pedals were not a big problem, but the gears were still problematic.

"Iron gears wear out so fast?" The craftsmen exclaimed.

According to this wear and tear process, the craftsmen estimated that this kind of bicycle would not be able to run far, and in addition, they did not forget that the bicycle ran in Wanghai City, and the road surface of the ring street in Wanghai City was quite good, and it was like this with a good road surface, but what if it was outside?

"If you run outside, it will soon fall apart." The craftsmen all nodded.

"Better iron is needed."

"Yes, it has to be better iron, otherwise it won't last long."

The blacksmiths led by the blind Li were in a dilemma, and the method of pouring iron was already wrought iron, and the hardness was quite high. Although there are still ten steel-making, hundred-steel-making, and thousand-steel-making, it is also iron in essence, and it is estimated that it cannot withstand this consumption.

In this way, it was the turn of the blacksmiths of the blind Li to have a headache, and the carpenters made bicycles, and later made heavier carriages. The demand for iron is getting higher and higher, and if the skills of the blacksmiths cannot keep up, it is naturally a problem for the blacksmiths.

In addition, the road problems are also spread on the stonemasons, there is no road, you can't run a bicycle, you can't run a steam carriage, so you need a good road, a good road has to be polished with good stone slabs, and the stonemasons are also very depressed.

Obviously. This kind of result is what Lin Bei is happy to see, this is the relevant supporting facilities, for example, there is an aircraft now, then the airport must be qualified, the airport is the supporting facilities of the aircraft, all industries are not independent, and the whole body is involved, when all industries have progressed. Science and technology will become more and more developed

Lin Bei saw a lot of sea fish.

In this day and age, the ocean is definitely off-limits for humans. And this time will last until the Ming Dynasty, the shipbuilding technology of the Ming Dynasty has been greatly improved, the Ming Dynasty has made a huge ship that is enough to resist the wind and waves at sea, and when Zheng He went to the Western Ocean, the length of the largest treasure ship reached more than 40 zhang, and the length and displacement of this ship even exceeded the aircraft carrier built by people at the beginning of the Industrial Revolution.

But obviously. The Eastern Han Dynasty has not yet reached this point in this period, and a huge ship can reach six zhang is quite large, the reason is that because of the lack of power, the sail can only go along the water, and if the wind is against the wind, it depends on manpower. But if you want to go to the sea, the sailboat is obviously not qualified, so it can be said that the sea area that humans set foot in this era is almost not more than 100 miles.

This is the most abundant era in the sea, so that Lin Bei to catch up, rich to what Cheng dù, Lin Bei saw a group of dolphins, this is a kind of fish that is widely stored in all the oceans, if it is a later generation, you can see hundreds of dolphin groups playing on the sea surface is already a rare sight, Lin Bei saw the number of this group of dolphins is tens of thousands, they jump out of the water, chase each other, covered with dozens of miles of sea area, see Lin Bei's heart is happy, too much, can not see at all.

The sergeants at sea also straightened their eyes, these dolphins are all adult dolphins, one or two meters long, in the eyes of the sergeants, they are already big fish, if they catch so many big fish, they have to eat for as long as they want.

And at the bottom of the sea, there are countless small fish schools, the largest number of fish in the ocean in later generations is called scale fish, they are out in groups every time, the number of hundreds of millions or billions of scales, Lin Bei sees more scale fish schools, and even these scale fish form dozens of hundreds of meters wide sea water whirlpools when swimming, blue whales forage in the scale fish school, one bite can swallow tens of thousands of scale fish, and then surface to spit out the water, spectacular.

And this is just the surface of the sea, the shark school on the bottom of the sea, and the small whale school also make Lin Bei's eyes flawless, with Lin Bei's poor knowledge of marine animals, he can't recognize a few at all, but he knows that there are many, many of them, so much that Lin Bei can't imagine.

Under the leadership of Lin Bei, the middle wing boat slowly avoided the fish on the sea, when the number of fish was too large, even Lin Bei did not dare to take its edge, just like the dolphin group just now, they were rampage, this gentle fish showed a posture of thousands of troops, even if they passed by Lin Bei, they didn't care about Lin Bei at all, but Lin Bei had to take the boat around.

This way of detouring makes the distance much farther, the sea is too wide, and there are no coordinates, a detour may be dozens of miles.

"My lord, it's far away, it's far away, and now I'm going to the southeast, not the northeast." The sergeant shouted from the boat.

Lin Bei didn't reply, he was also depressed in his heart, didn't he know that the direction was wrong? He knows, but doesn't he take a detour? Just now there was a large group of sharks underneath, numbering hundreds, crashing into it with a boat? Lin Bei is not crazy, the middle wing ship is as fragile as paper here.

Then, Lin Bei suddenly paused, he felt an unusual fluctuation in the water, this fluctuation should be far away, but it should be very intense.

In front of Lin Bei dozens of miles, five or six hundred large whales are desperately fighting in that vast sea area, if Lin Bei can see it, he can recognize this kind of whale, this is a sperm whale, it is also a super sea beast, and the object of the fight is suddenly hundreds of giant octopuses. (To be continued......)

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