I was the emperor in the Ming Dynasty

Chapter 1023 Searchlight

Therefore, in just a few days, all kinds of oil lamps with gorgeous shapes and more advanced and convenient functions were manufactured.

Because the current glass making process has not been released by Li Tian, ​​so colored glaze can be regarded as a luxury.

Those new-style oil lamps made by the skillful craftsmen of Tiangongyuan suddenly became a hot commodity in the capital.

When the price was the highest, it was even fired to the point of 1000 taels of silver.

These guys from the Tiangong Institute must have been infected with Li Tian's problem that something can be used to make money.

There is no rush to produce a large number of finished products immediately.

Instead, release a few today, and release a few more tomorrow.

As a result, the big families in the capital can't get them even if they go door-to-door.

A small oil lamp brought tens of thousands of taels of income to Tiangongyuan in less than half a month, but it made Zhou Zhen and the glass craftsmen smile.

A mere 2 taels of silver, Li Tian didn't think much of it, so he didn't get involved.

After handing over the drawings to them, I asked them to see if they could improve it and come up with something suitable for the lighting of ships at night.

Not to mention, after such a long period of training by Li Tian, ​​the talents of Tiangongyuan have risen in a straight line.

Since Li Tian published in the Beijing News one day, the principle of the dispersion and focusing of light by concave and convex lenses.

Plus their previous experience making magnifying glasses, glasses, telescopes.

They actually made a simple searchlight in a very short period of time.

The principle of this searchlight is actually very simple.

Behind him is a washbasin-sized pot that is sunken inwards. The inside of the pot is coated with a layer of highly reflective tinfoil. A metal shelf extends from the middle of the pot, and a ready-made pot is placed on the shelf. glass kerosene lamp.

When the kerosene lamp is lit, almost all the light is refracted in one direction after being reflected by the concave cauldron.

In this way, the oil lamp, which could only illuminate a range of several meters, instantly became a searchlight that could illuminate tens of meters or even hundreds of meters.

The guys from Tiangongyuan even thoughtfully fitted this big iron pot with a rotating shaft that can rotate 360 ​​degrees without dead ends.

At that time, only one person needs to hold the handle behind the searchlight to discover the situation ahead from a long distance, and the effect is no worse than during the day.

The searchlight made by this indigenous method was ordered by the Qiming for four or five as soon as it was manufactured, and all of them were installed on the highest point of the bow.

Several searchlights were turned on at the same time, and all kinds of movements within a hundred meters ahead could not hide from the eyes of the observers behind.

Therefore, they sail at night without any pressure.

A searchlight that can illuminate a hundred meters above at night can be regarded as a strategic weapon.

Whether it is a defensive city gate tower or an attack at night, it can play an extremely important role.

Li Tian sensed the value of them, and those bigwigs in the army could naturally sense it too.

So orders like snowflakes flew to the capital from all over the country, making Li Tian and Tiangongyuan dumbfounded.

Fortunately, although the glass lampshade is not cheap, it can be used to amplify the light, and the large iron pot that gathers the light is relatively cheap.

It may take some time for lamps to become popular, but they can open up the supply of large iron pots for reflection.

In this way, within a few days, several large iron pots were set up on the gates of the capital. The soldiers on duty stood behind the large iron pots. Once they noticed movement in a certain place, they would turn around in unison. According to the past, even a hare passing by can be seen clearly.

With the powerful lighting ability provided by this thing, it is possible for steam ships to sail at night.

A simple idea can produce so many chain reactions, and even catalyze a whole new industry.

This was something Li Tian didn't expect at first, but he wasn't very surprised.

In the future, with the continuous development of Tiangongyuan, more things that did not exist in this world will be manufactured, and more things that can bring various conveniences to the people of Ming Dynasty will be born.

A hundred flowers bloom, thousands of families contend, and all walks of life prosper, this is the future Li Tian really wants to see.

And all of these evolved from him as the source. It is impossible to say that he did not feel excited and happy.

Although the steamship is running at full horsepower, it can reach a speed of more than ten knots.

One knot is equal to 23 kilometers, and twelve knots is equal to [-] kilometers per hour.

Converted into miles, it is more than 40 miles.

Running more than 40 miles in an hour is said to be comparable to a fast horse, but in fact it is almost the same.

But it was night after all, and even with searchlights on, they didn't dare to run with all their might.

The current speed is about five, six, seven or eight knots.

Not fast, but not slow either.

Calculated in one night and ten hours, you can run more than 200 miles in one night.

The distance from Beijing to Tianjin is only 130 kilometers, and running from Beijing to Tianjinwei in one night is an amazing speed anyway.

After watching the night scene for a while, the freshness faded immediately, and the temperature in early spring was still very low, so Li Tian planned to go back to the warm cabin to rest.

But only halfway through, I met Sophia who was patrolling the whole ship.

She was wearing the costume of a military officer and general of the Ming Dynasty.

At first glance, even Li Tian almost didn't recognize him. The heroic and handsome guy in front of him was actually Sophia, a soft and charming girl.

Seeing Li Tian, ​​Sophia didn't show any formality, but turned around in front of him very showily,
"How about it, Your Majesty the Emperor, you almost wouldn't recognize me when I put on your Daming's official robes!"

Sophia is more than 1.7 meters tall. Compared with the men of Ming Dynasty in this era, she is relatively tall.

In addition, her skeleton is much bigger than Daming's girls of the same age. If you don't look at the face and listen to the voice, it is really difficult to tell her gender immediately.

It's just that Li Tian glanced at the towering part of her chest, and recognized her immediately.

I sigh in my heart,

"It's hard not to recognize you.

Except for a few talented people in the entire Ming Dynasty, there are probably few people who are stronger than you. "

I don't know if it's because Sophia's food is so good during this time, or because she drinks milk tea every day, Li Tian always feels that Sophia's figure seems to be much plumper than when she first came here.

(End of this chapter)