Faced with Jingzhu, Kang Kai of course still stiffened his neck and said that it was 'a wasteful thing that is not beneficial to the family and the country'.

But the position has softened.

As a self-proclaimed scholar and intellectual.

Of course Kang Kai would like this kind of candle that burns colorless and odorless and can illuminate the night like day.

Although the price may be a bit more expensive.

But he can buy a house worth tens of millions without blinking an eye.

These hundreds of whale candles can naturally be taken home with your eyes closed.

When Liu She saw this, his heart blossomed with joy.

So, we came up with an improved three-legged columbine and a simplified version of a single-person columbine.

The former requires two people and one animal, but can complete deep plowing and sowing of one hundred acres of land in one day.

It is especially suitable for growing millet and wheat beans in the north.

The latter is an extremely simple simplified version of the columbine.

It reduces many unnecessary designs and optimizes the structure.

So that only one person needs to pull it on the shoulder to complete the sowing work.

This made the onlookers stare intently.

For four years, Shaofu Yamen has been selling various advanced agricultural tools in Guanzhong.

In the past, the curved shaft plow, water wheel and soil fertilizer were highly praised in Guanzhong.

He also cooperated with Da Nong and Neishi Yamen to promote the field farming method.

Therefore, everyone has a very high evaluation of the quality of the things produced by Shaofu Yamen.

It even left the impression in the minds of the people, ‘The Shaofu is the yamen that makes equipment for His Majesty’s camp. Can the quality of the products produced by the Shaofu be bad?’

It already has a brand, and it has the image of a famous brand.

Liu She then asked someone to demonstrate how to use the three-legged columbine and the single-person columbine.

Whether it is the deep plowing and sowing by a three-legged columbine or the manual sowing by a single-person columbine, everyone is stunned.

Kang Kai's eyes widened when he saw it.

Before today, Kang Kai never knew that in this world, farming could still rely on the help of machinery and animal power.

The teachers always only told him: As long as the moral level is improved, the world will naturally be healthy.

But they have always avoided talking about methods other than improving moral standards.

But, now it's in front of him.

He thought of him as a 'treacherous traitor' and a 'traitor'.

What teachers call ‘immoral ministers’.

However, using the "skills" that Kangkai's teachers never talked about, they creatively and solemnly recommended to the world two advanced tools, the three-legged columbine and the single-person columbine, targeting different classes and regions.

This made Kang Kai a little stuck.

He could no longer say the words "This thing is useless to the world, it is extravagant and wasteful".

But Liu She is willing to let him go so easily?

Liu She clapped his hands.

A novel one-wheeled wooden instrument was carried by a craftsman on his shoulders and pushed in front of everyone.

If in the past, the columbine was still an improved instrument based on the old people’s wisdom.

Then this unicycle, or unicycle, is an ancient invention.

"This cart is called a deer cart..." Liu She proudly faced everyone: "Last year in the battle of Mayi, the Shaofu built more than 1,500 deer carts to transport hundreds of grains and grass to Mayi and Yanmen.

Thousands of stones, arrows, and spears are useless!"

When everyone heard this, they immediately roared and started talking.

Last year's Battle of Mayi can be said to be the focus of discussion in the entire world.

It can be said that the Battle of Mayi profoundly changed the world.

This battle not only changed and innovated the way of war, but also let the world know that from now on, cavalry will be king!

It has also brought countless new things to the world.

Among them is the ‘Deer Cart’ which is very hotly discussed in the public opinion.

Legend has it that a deer cart, held by one man, could carry ten stones of grain and travel dozens of miles in a day and night!

However, this magical vehicle has never really revealed its true face in front of people.

Before today, many people thought that the "deer cart" was just a legendary thing.

But now, this thing has gone from legend to reality.

Countless people stared straight at the magical car that was said to have transported millions of stones of grain and grass to the front line in one month, for fear of missing any details.

Then the actual demonstration also proved the magic of this thing.

I saw a big man pushing a "deer cart" filled with corn and walking on the road as fast as the wind.

Countless people suddenly became excited.

In fact, Chang'an has long been a pure commodity economy city.

There are hundreds of thousands of residents living here.

But the vast majority are practitioners in handicrafts and industry and commerce.

The peasant class has, in fact, disappeared from Chang'an City.

The residents of the whole city rely entirely on material supplies from Guanzhong and Guandong for their daily expenses and consumption.

A few decades ago, when the Qin Dynasty fell and the Han Dynasty rose, Guanzhong was still self-sufficient.

But as time went by, Guanzhong, a treasure land known as the Eight Hundred Miles of Qinchuan and the Tianbao of Wuhua, actually began to suffer from dependence on grain.

Starting from Emperor Taizong, one hundred thousand dan of grain had to be transferred from Guandong every year.

Today, this number has climbed to as many as one million stones!

Next year it is expected to reach 1.5 million stone!

Other daily consumables, such as cloth, oil and salt, have long been dependent on supplies from Kanto.

It was against this background that Mr. Shi relied on a track carriage to make money every day.

The bigger change comes from the rise of examinations.

Every summer, tens of thousands of scholars from all over the world gather in Chang'an, and everyone comes with ideals and aspirations.

These people come from all walks of life all over the world.

But in general, they are basically children of middle-class families.

Even the disciples of local big businessmen.

They spend money like water and throw money like rain.

When the big dog owners are in a good mood, they can go to Huajie and Liuxiang and throw away a hundred and eighty gold coins without blinking an eye.

In every exam, there are two levels: success and failure.

Those who pass the exam are excited to become officials to realize their ideals and ambitions.

Those who fail will basically not give up.

I will choose to stay in Chang'an.

Rich people live in mansions, sleep on high beds, wear gold and silver, and go to the prince's house.

The poor and middle-class people live in slums and make a living by copying letters for people or doing other things.

Basically, as long as they are smarter, more clever, and more diligent, scholars will never die of hunger.

At worst, they could also choose to work as diners and aides for the princes in Chang'an City.

He even worked as a bookkeeper for merchants and served as a teacher.

In the worst case scenario, you can also apply to the Shaofu and go to work in Shanglinyuan.

As long as you are willing to lower your head and do things seriously, food and clothing can always be guaranteed.

The examination of scholars has become an important economic hotspot in Chang'an today.

Every summer, before and after the examination is held, it is the best time for business in Chang'an.

At that time, no matter whether you were doing business or not, you could always sell out your goods.

It’s not unheard of for big business owners to directly buy up the products on a street when they are in a good mood...

Even in this 'off season'.

There is also business.

Apart from other things, the more than 10,000 scholars and their followers stranded in Chang'an were a huge market in themselves.

Under such circumstances, the small and medium-sized merchants in Chang'an, especially the traffickers and lackeys, urgently needed a simple, practical and compact carrying tool.

Isn’t the ‘deer cart’ in front of them the ideal tool in their minds?

As a result, countless people swallowed hard.

Some people even started asking: "How much does this car cost?"
To be continued...