Chapter 893: Propellers

The benefits and opportunities contained here are too great, and this is not only comparable to a two-Zhejiang road, which basically controls half of the world's trade circle.

No matter how gentle Su Shaobao's operation is and he takes into account the interests of all parties, Da Song will take the absolute lion's head.

The financial revenue of the Great Song Dynasty is more than 100 million guan a year, and after 25 years of efforts by Su You, it has now been quietly increased to 160 million guan, of which 100 million guan comes from Shuzhong (including Dali), Bianjing, and Zhejiang, and now according to the development of Su You's plan, within a few years, breaking through 200 million guan should not be a problem.

The financial situation has improved dramatically, so that the Great Song Dynasty can do more, and the completion of the reinforcement of the city of Bianjing City is a strong signal.

This is not a simple project, after the renovation of the Bianjing city wall, fifty miles in circumference, each city wall is supported by twenty reinforced concrete forts, each fort has two Zhenguo general cannons, equipped with new ammunition, the firing range can reach eight miles!

With them and the new army, Bianjing City no longer needs 400,000 troops to defend it, just 40,000 people are enough!

A huge tumor attached to the finances of the Great Song Dynasty - redundant army will be removed by the major operation of the Beijing Division.

But until now, Su You is still struggling, as long as things develop in that direction, no one in the court is a fool, and sooner or later someone will always see this step.

Therefore, now he takes advantage of the rainy season to leisurely inspect, which is equivalent to giving himself a vacation, and after inspecting Jiaozhou, he went to Yezhou again.

In the huge dry dock of the Yezhou Shipyard, four huge Hangzhou-type schooners are being maintained and renovated.

The day of eating oysters has come again.

Zhao Zongyou is an otaku, and he has no interest in the flower world in Yunzhou City, opposite Halong Bay.

The purpose of this exploration is still not to complete the circumnavigation of the Southern Song Dynasty, Zhao Zongyou arrived at Minggu Island, stationed a new force to the team members, sent a large number of provisions, craftsmen, livestock, construction machinery, axe saws, experimental equipment, observation equipment, and then set sail to the west of Minggu Island, along the coastline detour.

However, his luck was not as good as that of Shao Bowen, and the road was full of deserts and red rocky beaches, but the depth of the water seemed to be more conducive to navigation.

There were a lot of supplies to carry, but there was no need to worry, so I surveyed and measured all the way, the wind was very strong, and the sailing was very fast.

The whole western front, almost all of which were wild and uninhabited, was relatively arid, and it was not until the most prominent part of the western side that the situation began to improve.

A large number of the wild animals sketched by Shaw's team of reporters were also found here, as well as huge eucalyptus forests with cute little bears that pull cubes of feces and live on eucalyptus leaves.

The more I measured, the more I found that this place was terrifyingly large, from the golden beach measured by Shao Bowen in the east to the west where he finally arrived, the estuary full of black swans at 2 degrees 52 minutes east longitude and 31 degrees 52 minutes south latitude, and the coastline that had been measured exceeded 10,000 kilometers in length!

This river is the most suitable place to live in the west of the entire Southern Song Dynasty, because of the kind of black swan that has never been seen, Zhao Zongyou named it Xuanhu River, and also set up an observation camp in the Jiangwan Heights, named Xuanhu City.

This is Perth in real history.

Ordering the soldiers to build a wooden-walled city at the mouth of the river, Zhao Zongyou found a riverside stream on the beach full of glittering sand gold when he was exploring the inland river.

Upstream here, there must be a huge gold mine.

But Zhao Zongyou made a mistake, Shao Bowen was in a hurry, and there was no mention of this in the information - it is winter in the southern hemisphere!

I'm angry that I didn't even think of this, which should be surmising!

Fortunately, in addition to the strong wind, the climate here is very livable, and the winter is not the kind of cold and freezing.

Zhao Zongyou hurriedly returned to Xuanhu City, slaughtered sheep and took skins, and made a leather jacket for the soldiers left behind, leaving enough supplies, so that he could return quickly while the weather was acceptable.

He also presided over the improvement of the observatory, smelting blast furnace, lime kiln, pottery kiln, coke oven on Minggu Island, renovated the barracks, walled walls, storage, built the bay trestle, designed the wave barrier, and after many completeness, left 300 garrisons to protect the base, and then returned to Yezhou.

The materials and equipment brought by this voyage can be called terrifying, and the royal family is wealthy, so it is just right, three large ships, which can be used to transport various metal ingots on the road of Jiaozhi.

Su You walked into the design room of the Yezhou Shipbuilding Division, and Zhang Qi followed behind, carrying a basket full of big oysters.

"Why?" Su You's general Zhao Zongyou studied the drawings there: "When you come back, relax and relax, don't study every day." ”

Zhao Zongyou put the pencil on the table: "Jingrun's design has tripled the power of the steam engine, which can basically be used on a large scale and can be used as a power source." ”

"Scholar, you see, this year, Zhengzhou and Yunzhou encountered floods and suffered heavy losses, what is the reason? Isn't it because most of the workshops rely on water energy, so they can only be built near the water, and it is difficult to resist the flood? ”

"If we could scale up this machine a little more, would it be a substitute for hydropower? In this way, the workshop is no longer limited by location, and can be installed anywhere in the Great Song Dynasty! ”

"Also, every time you cross the equatorial windless zone, you have to wait until December or June, when the wind is at its highest, and it is so slow that it is not enough, if you use a steam engine as the power, can you push the ship through the windless zone?"

"Look at the drawings of this ship I designed, okay?"

Su You took the drawing and saw that it was a schooner with two huge paddlewheels hanging on both sides.

Su You nodded: "You are stealing the design of my fish pond oxygen supply device, but there is actually a problem." When the wind is strong at sea, the wind will create a huge drag on the wheels, causing the steam engine to not be able to push the wheels under the current power. ”

Zhao Zongyou took a piece of paper, calculated it, and threw the pen on the paper after the calculation: "It's true, if the wind exceeds four meters per second, the wheels can't move." ”

"Also, the force of the waves on the wheels will also affect the stability of the boat, leading to the risk of capsizing," Su said. ”

Zhao Zongyou nodded: "It seems that you have already thought about this problem, what is your plan?" ”

Su You took Zhao Zongyou to the laboratory, opened the drawer, and took out a small boat.

In the middle of the boat was a rubber band with a brass shaft, and the tail of the brass shaft was connected to a three-petaled floret at the stern of the hull.

Turning Xiaohua with his fingers to tighten the rubber band, Su You put the boat in the sink, and as soon as he let go, Xiaohua turned and the boat drove towards the front of the sink.

Zhao Zongyou's eyes lit up: "Wonderful! ”

Took the model out of the sink and glanced at the tail: "This is ...... What is the principle of the isometric spiral water pipette? ”

Su You said with a smile: "Sure enough, it is not difficult to know, it is the principle of equidistant spiral, since it can draw water, turn it in reverse, of course you can push water." ”

"Not bad, not bad." Zhao Zongyou was full of praise: "This completely solves the problem of the bright wheel." ”

"This part is called a propeller." Su You took out a few drawings from the drawer: "This is some of the plans I imagined, for your reference, this thing is mainly difficult to design, really to process, with wax mold and lost wax method, with bronze or brass casting can be obtained." ”

Zhao Zongyou nodded: "I also discovered this voyage that it is not easy to mess with those nasty creatures on the bronze vessels." ”

Su You pulled Zhao Zongyou out: "Haha, you forgot if you didn't say it, those guys don't hate it, it's delicious!" ”

From the laboratory, I turned out a blowtorch and a thin copper basin, set up a pot with Su oil, took out the knife in the schoolbag to break the oyster shell, turned out a mortar, washed and poured garlic, mixed with soy sauce, oyster sauce, and tea oil to make a seasoning, took the empty oyster shell and put it on the bottom of the basin, added water, put the shell with the oyster meat on it, used a glass spoon for the experiment to apply the seasoning to the oyster meat, and then found a copper basin, and steamed it upside down.

Zhao Zongyou was dumbfounded: "How can you have these things in your bag?" ”

Su You said: "I came to eat oysters today." ”

Zhao Zongyou: "......"