Zhu Youxiao found that whether it is a two-wheeled bicycle or a three-wheeled bicycle, it is through the pedaling of people's feet, so that the axle of the rear wheel rotates, and then drives the wheel to rotate to achieve the purpose of moving forward.

The carriage or the car pulled by the person is the body of the car to make force, the axle is fixed, under the drag of the axle, the wheel begins to rotate, to achieve the purpose of moving forward, the two are just the opposite.

The former is the wheel rolling to drive the car forward, and the latter is the car moving forward to drive the wheel to roll.

Wang Hongyu also said that the wheel of the pedal is called the driving wheel, and the wheel connected by the chain is called the driven wheel.

The ratio of the number of gears of the driving wheel to the number of gears of the driven wheel is inversely proportional to the number of revolutions of the driving wheel and the number of revolutions of the driven wheel.

For example, if the number of gears in the crankset is 5 times that of the gears fixed to the rear wheels, then if you step on both feet, the rear wheels will turn 5 times.

If you step on the crankset at a normal walking speed, then the speed of the bicycle is 5 times that of walking.

If it is to pull people to hurry, then increase the crankset, the speed will be fast, and the weight that can be pulled will be light.

If you want to pull several times the weight, you can only make the crankset smaller, the number of gears is less, the weight that can be pulled is more, and the speed is slower.

Zhu Youxiao built two pedal tricycles according to this principle, except for gears, chains, and bearings, the others are wooden structures, and the test results are completely in line with Wang Hongyu's vision.

He really understood the principle of gears, and Wang Hongyu once talked to him about the principle of leverage, and the two are similar.

Understand the principle of gears, understand the principle of designing bicycles, and if you popularize bicycles, your own treasury will soon be rich.

Wang Hongyu can design it himself, but he gave himself such an opportunity, as long as he designs the drawings for making bicycles, let Wei Zhongxian pay for it, and Wang Hongyu contributes to production, one-third of the profit will become his own internal money.

The key is that the Ming Dynasty has convenient means of transportation, which can save a lot of car and horse fares, and the efficiency of work will be greatly improved, and the economy of the Ming Dynasty will develop rapidly.

Zhu Youxiao is not only extremely smart, but also a workaholic, just do what he says. First of all, the two kinds of pedal tricycles he made were improved, and the official drawings were handed over to Meng Biao and Wei Liangqing to pay close attention to production and sales.

There are three types of pedal puller covered tricycles: simple, normal, and luxurious. Considering for different levels of users, it meets almost all kinds of needs.

There is no roof for the cargo pulling pedal tricycle, only a wooden fence and a flexible sealing baffle, and the tooth ratio of the crankset gear to the rear axle fixed gear is 2:1.

There are also three types: single-pedal, two-pedal and three-person pedal, which provide customers with a choice for easy transportation.

Then, Zhu Youxiao carefully carried out the design work of the two-wheeled bicycle, and the design process was naturally painstaking, and after the drawings came out, Meng Biao and Mr. Wei Liangqing first produced samples for testing.

After making several improvements, it was officially put into production, and this is a bicycle designed by Zhu Youxiao with a lot of effort, and he is looking forward to the feedback after it is put on the market.

The first batch of bicycle sales, Wei Liangqingbo spent some brains, used all his connections to publicize, the role of the network is very powerful, all the high prices are booked in advance, and all 200 bicycles are sold out.

The second batch of bicycles was pressed for a while, and when the people who were not rich or expensive in the capital envied the first batch of people who bought them, they were so envious that they were about to shed tears and then started selling, but the supply exceeded demand.

Meng Biao and Wei Liangqing temporarily hoarded the third batch of bicycles for hunger sales, Meng Biao and Wei Liangqing raised the price by two percent on the grounds of material and manual price increases, and users were worried that the price would continue to rise, and set off a rush to buy.

There are rickshaws on the streets of Beijing that pull people to earn their feet, simple three-wheeled rickshaws can be seen everywhere, rickshaws are flowing endlessly in the streets and alleys, and rich families want to buy a luxury pedal tricycle, and let the people pull how energetic they are when they go out.

In the past, yellow was used exclusively for the palace, and now the three-wheeled pedal rickshaw is the exclusive production of the Emperor of the Apocalypse.

It didn't take long for merchants in Tianjin, Taiyuan, Baoding, and Jinan to begin to order in large quantities, and Meng Biao and Wei Liangqing had to expand reproduction, and the momentum exceeded expectations.

Zhu Youxiao, Wei Zhongxian, Liu Ruoyu and others will soon be able to ride bicycles, and personnel at all levels in the palace have begun to be equipped, and businessmen can organize bicycle races at home.

Meng Biao and Wei Liangqing presided over mass production in the Beijing workshop, and soon copied the general boom of the watch business, and made a lot of money and formed a trend.

Thirty percent of the money went into the inner treasury, thirty percent went into the Wei Mansion, and three percent went to Wang Hongyu's workshop.

Wei Zhongxian and Wei Liangqing continued to roll money and invest the money they earned, and the funds for industrial development were very sufficient.

......

The development of the Ming industry is improving, but some people have coveted it for a long time.

And this time we have to mobilize directly, and we are ready to do it.

In May of the second year of the Apocalypse, the Dutch people officially attacked Macao.

Wang Hongyu had already reminded Cai Fuyi, the governor of Guangdong, so as soon as there was a merchant ship at sea to hear the news, Cai Fuyi would know about it.

Carvalho, the governor of Macau in Portugal, also immediately mobilized to prepare for war.

The Dutch East India Company, through commercial, military and other means, seized the wealth of the South Seas, and posed a great challenge to the various Portuguese trading posts.

At this time, Portugal had been annexed by Spain, and only overseas powers were still independent.

After acquiring the rights and interests of Southeast Asia, the Dutch began to expand into the seas of East Asia. They had their eye on Macau, where the Portuguese had settled.

Because Macau was the commercial hub of Portugal in the Far East, it closely linked the trade routes of Southeast Asia, China and Japan. By taking possession of Macao, the Dutch would be able to dominate trade in East Asia.

Between 1601 and 1607, the Dutch made three small attacks on Macao, but all of them were unsuccessful.

In the second year of the Apocalypse, Dutch manager Putmans and Dutch pirate captain Van der Meyer conducted reconnaissance of the ports on the southeast coast of the Ming Dynasty in the name of doing business.

Finding that the Portuguese occupied Macao were empty of guards, they began to fight again with the idea of seizing Macao. At the same time, the situation in the coastal areas of Guangdong, Fujian, and Zhejiang was also investigated.

I also learned that the main force of the Ming army was wiped out by a person named Nurhachi in Houjin.

The Dutch did not know about the annihilation of the main forces of the Ming Dynasty by the Later Jin in Salhu, Shenyang, and Liaoyang, and the news was heard by Putmans when he entered the Daming Sea to do business.

Logically speaking, the Ming Dynasty has no time to deal with the rising Netherlands at sea, and should also be powerless to prevent the company from taking Macau.

Cohen, who served as the governor of the East Indies, was finally about to make a big attack.