"Every time I go back to Shanghai, I can give people the illusion that they are in the wrong place!" On the bow of the boat, a middle-aged man in a robe sighed: "Shanghai is changing too fast, almost every year, I remember when I left Shanghai last year, the north bank of the Wusong River was still barren, but I didn't expect that in just one year, it has already changed a lot!" ”

The others answered: "Yes, since the opening of the port, this Shanghai is a thousand miles a day, not to mention every year, even if it is a day with great changes, you look at the Wusong River estuary in front of you, see those bridge piers are not!" ”

"That's the famous Wusongjiang Bridge, right? I saw its relevant reports in the Tang Dynasty newspaper before, and today I saw that it was indeed worthy of its name, although it has not been fully completed, but such a huge bridge pier, it is expected that after it is completed, it must be magnificent! ”

"But no, this is the largest steel bridge in the empire and even in the world, it is said that in order to build this steel bridge more than 100 meters long, even Jiangnan Iron and Steel Company has specially dispatched personnel to build the main body of its steel beams!"

The Wusong River Bridge, with a total investment of hundreds of thousands of taels of silver, has not yet been completed at this time, but has only begun to carry out preliminary works on both sides of the river and erected two huge bridge piers in the river, but just these preliminary works have made people see the extraordinary nature of this bridge!

Once this bridge is successfully completed, it will firmly occupy the title of the world's largest bridge!

This bridge is not only large in length, but also large in width, and the load-bearing capacity is not to mention, and more importantly, it does not affect the navigation of ships.

Today's surviving bridges, the length of 100 meters, and many, for example, many wooden bridges, and even chain bridges, can actually reach 100 meters in length, but the length is there, but the load-bearing capacity, traffic capacity is lacking.

Some stone bridges have reached the load-bearing capacity and the traffic capacity, but in order to support the bridge body, the traditional porous stone bridge technology is generally used, which will inevitably affect the navigability of the ship.

The Wusongjiang Bridge is the bridge that has reached the best choice in all aspects, which reflects not only the engineering ability, but also the industrial strength of the Tang Empire.

In order to build such a steel bridge, the key to technology is not a few piers, but the main body of the steel bridge, that is, the steel frame.

Secondly, it is not so easy to accurately install the large and heavy steel bridge body.

For this project, the construction company under the Shanghai Wharf Company also specially ordered a huge crane ship, which used multiple steam engines as power, designed an extremely complex crane structure, and even used the steel main structure for the first time.

Although this kind of crane ship has great limitations, and it can't even sail autonomously, and can only be towed by tugboats, it has to be said that this is still the highest level of industry in the Tang Empire.

Only the Tang Empire, which was in the early stage of the industrial revolution, had strong steel, machinery and other strengths, could create such a huge construction machinery.

When others lamented the changes in Shanghai, Song Maruki also looked at Shanghai with wide eyes!

The boats on the Huangpu River come and go as if they were endless, from small and medium-sized boats for inland navigation to huge sea boats!

At first, she thought that the ships she saw in the port of Busan were big enough and enough, but she did not expect that the ships in the port of Busan were less than 100 compared to Shanghai.

She even saw a huge ship slowly passing by the ship they were on, and on the deck of the passenger ship, she couldn't even see the whole picture of the ship when she looked up.

Listening to the discussions of others, she knew that this giant ship was the pinnacle masterpiece of the imperial merchant ship, a giant ship developed and produced by Hong Kong Dingsheng Shipyard!

This kind of giant ship, when fully loaded, the displacement can reach more than 1,100 tons, the huge cargo capacity, coupled with the stability of ocean navigation brought by the huge hull, coupled with the excellent speed of the Tang ship, so that this kind of ship has far more than the tonnage of the Galen ship when performing ocean transportation tasks, and can reach the destination faster.

What's more, the cost per ton of cargo is already lower than that of the Galen ship, which is very important.

In fact, this is also reflected in the fact that the greater the tonnage of the Tang ship compared with the Galen ship, the greater the advantage.

Because there is a big difference between the two ship types, the use cost of the two sides is also different, taking into account many factors such as labor, sailing time, and ship construction cost.

When it is less than 500 tons, in fact, the Tang ship does not have an advantage over the Galen ship, and there will even be a slightly higher overall transportation cost.

In the range of more than 500 tons and less than 800 tons, the freight costs of both sides are roughly the same.

However, this transition point has changed above 800 tons, that is, when the tonnage of the Tang ship exceeds 800 tons, its comprehensive freight cost will be lower than that of the Galen ship.

However, this cost is to include the construction cost, maintenance cost, and operating cost of the ship.

Because of the difference in ship types, in fact, the loading capacity of the Tang ship has always been inferior to that of the Galen ship, but the advantage of the Tang ship is that it is built in batches, which leads to lower construction costs and lower maintenance costs, and because of the simplified sail loading, the number of sailors required to operate the ship is also less than that of the Galen ship.

When the two types of ships are comprehensively compared, especially when the whole life cycle is compared, then it will be found that on large-tonnage ships, the transportation cost of Tang ships is lower.

This is also the fundamental reason why the ship type of Tang ships is generally more than 500 tons, and it is the more it develops, the larger it becomes, and now there are a large number of ships of 1,000 tons, but there are few ships below 500 tons.

Among the ships under 500 tons, the Tang Empire prefers to follow the traditional sand boats!

That's right, it's a sand boat!

Low cost, large loading capacity, ideal for offshore and inland navigation.

At the same time, this is also the reason why the ships of the Tang Empire for ocean trade are generally more than 500 tons!

Because only Tang ships of more than 500 tons are suitable for ocean trade, the transportation cost of Tang ships with small tonnage is too high, and sand ships with small tonnage are not suitable for ocean voyages.

Song Maruko traveled from Osaka to Busan, and took a 500-ton Tang ship, and when he went from Busan to Shanghai, he took the same Tang ship of the same class!

But now, on this five-hundred-ton Tang ship, she saw the thousand-ton giant ship passing by, and the shock in her heart was undoubtedly incomparable.

She had never seen such a huge ship when she was in Busan!

This is because, although the thousand-ton Tang ship is more easy to use, and the cost of comprehensive transportation throughout the life cycle is also lower, this kind of ship is still too expensive to procure, and it is not a powerful trading company, so it cannot afford to buy or use it.

Nowadays, the people who can buy and use this kind of ship are all well-known trading companies in China, and all of them are used to carry out ocean routes, and they are mainly used to run South Sea, Indian and Oriental routes, and generally not used to run domestic and offshore routes.

Among them, the most important user is Datang Western Trading Company, which runs Indian routes, and even farther West Asian shipping and North African routes.

This year, they plan to send a ship to Europe to trade with the Spanish fleet.

Regardless of whether it is the Indian route or the European route, the route is long, the sea conditions are complicated, and there are Portuguese people looking for trouble in three days, and the merchant ships of the Western trading company need to have a strong ability to protect themselves.

In addition, the Western Trading Company has a lot of money, so it has ordered more than a dozen of these 1,000-ton giant ships, and five of them are currently in service, and they travel to and from various ocean routes every year.

As for other trading companies, in fact, there are not many orders, usually speaking, the stronger trading companies will order one or two, as the company's flagship, reflecting the company's strength, of course, more to make money.

This kind of 1,000-ton giant ship is a typical ship type with a large investment in the early stage but a greater return in the later stage.

When Song Maruki first arrived in Shanghai, like many people who came to Shanghai for the first time, he was immediately shocked by the bustling Shanghai.

The many ships coming and going, the huge thousand-ton ships, the rows of almost countless ships on the docks on the shore, and the high-rise buildings on the shore of Daxia, all of them illustrate the difference of Shanghai.

As the largest city in the empire, Shanghai's industrial and commercial strength is unshakable by other cities, and even Jinling City, as the capital, has to bow down in front of it.

After the shock, Song Maruko, together with the others, took a boat close to the pier, and then set foot on the land of Shanghai!

Later, together with several other members of the company, she got into a very peculiar carriage, the wheels of which were in the form of fixed rails on the ground.

The carriage was unlike anything she had ever seen, not only the rails, but also the large carriage, with two levels of carriages, larger than the four-wheeled carriages she had seen before.

The upper carriage has no roof, only seats, and a few big characters are brushed on the huge carriage, with the words "Shanghai Public Carriage Company" and "Line 9" written on it.

What's even stranger is that there are only two horses in front of this huge carriage!

It almost turned her notions on its head!

It seemed to her that it was almost impossible to pull such a huge carriage and more than forty people on it with only two horses.

But it was so, the huge carriage full of passengers was actually pulled by two horses, and then moved slowly on the tracks!

It's not scientific!

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