Must there be glass to make a mirror?

When he was still in the shipyard, at the moment when the "silver ship" was fully formed, Renault looked at the shadow of the people on the metal surface, and suddenly had a problem in his mind.

He has lived on the earth for more than 20 years, and all the mirrors he came into contact with were made of glass.

Thus, Renault formed an inherent concept: the mirror is the glass, and the glass is the mirror.

After crossing the alien world, he is also ready to put glass manufacturing on the agenda at an appropriate time. Isn''t it just burning sand? What''s the difficulty?

Even the principle of float glass is clear, and with magic black technology, large flat glass of 5 meters by 5 meters can be easily rolled out.

but after hearing woodlouse''s admiration for the silver boat, he suddenly thought of one thing: mirrors do not always have to be glass.

Moreover, Renault is also ready to use this to do an interesting trick in front of his sister.

He patted his hand gently, and the door of the restaurant suddenly opened and closed. In this short opening and closing time, a white shadow with a gust of wind flew into the room and landed on the carpet.

It''s a 2-meter-high and 1-meter-wide steel plate with a thickness of more than 3 mm. The surface is rather rough. It looks ugly under the light of the flame crystal snail.

Strangely enough, the steel plate stood upright on the ground without any support.

The girl turned to look at it and asked in doubt: "Renault, the gift you said This is it? "

However, the girl didn''t mean to despise, just didn''t understand.

This alien girl is straightforward, not like some shallow species on earth.

Those superficial goods are used to measure everything by price. They are always calculating in their mind. They always compare with each other in their mind. They think they are smart. But they don''t know that this kind of behavior directly pastes a striking price label on themselves - "I''ll sell this price.".

Even the female slaves in the foreign world would not engage in this kind of behavior of thinking of themselves as goods and intending to sell them at a good price, but these people sell them reasonably.

The most amazing thing is that they call it "love.".

Perhaps, for such creatures, life is just a trade.

But the consul lady is totally different from them. Even if Renault really gave the girl a piece of iron, she would happily accept it.

Because, this is Renault''s first serious gift to her, what about iron plate? If you have nothing to do, you can still make Teppanyaki. It''s still worth collecting.

Renault stood up, walked to the iron plate, and said with a smile, "yes or no..."

He Shiran went to the iron plate, reached out his right hand, pressed the top of the iron plate, stuck to the surface of the iron plate, and moved down slowly.

At this time, a shocking scene happened!

But where Renault wiped his right hand, it instantly turned into a very bright mirror, a mirror that was shining delicately.

Angela and others were stunned.

This kind of mirror effect is better than the glass mirror on earth. At this time, it is even more dazzling under the fluctuating illusory fire light, even in the dining room.

Renault''s action was extremely gentle, without any force, as if it was a mirror, just covered with a layer of dust on the surface. He reached out and gently wiped away the dust.

But Angela and others know that''s not the case.

Because they can clearly see that when Renault''s palm moves, a large number of red hot metal fragments break away from the iron plate and fly to the corner of the restaurant quietly.

Just from the "cleaned" corner, the girl suddenly found that this mirror seems to "contain" another restaurant. In reality, all the items in the restaurant can be seen as a "replica" in the mirror.

Yes, the word "clear" can no longer describe the effect of a mirror, and "copy" is the most accurate description.

The imaging principle of a mirror is light reflection. The light reflected from the surface of the human body falls on the mirror and is reflected into the eyes of the human being. Then the human being can see himself.

But there is a premise here, that is, the light reflected by the mirror must be "parallel beam", and only parallel beam can form a complete image.

On the contrary, it is diffuse reflection. When the surface of an object is uneven, the reflected light will be scattered, unable to form a parallel beam, and of course, unable to image.

In other words, any object, as long as the surface is smooth enough (roughness is small enough), it is a mirror.

From this point of view, even if you find a lump of excrement, as long as you can polish it smooth, you can also use it as a mirror.

On earth, there is only one reason why people choose to use glass as a mirror - cost.

When any molten liquid is cooled, the surface tends to be flat due to gravity and surface tension, but this is only an ideal state. In fact, it is more complicated, and impurities and crystallization process will affect the surface smoothness.In this respect, glass is much better than metal, and the surface after cooling is quite smooth.

There are mirrors in other places, but they are all metal mirrors. The common people use bronze mirrors, while the nobles and rich merchants use silver mirrors.

Due to the polishing process, even the smoothest and clearest mirror can''t compare with the ordinary glass mirror on earth.

With Renault''s "wiping" area becoming larger and larger, the girl''s expression became more and more dull, and the maids even unconsciously grew their mouths.

After cleaning completely, the area of the restaurant will be doubled, and the people and objects in the restaurant will be doubled.

The most shocking thing is that the mirror seems to have completely disappeared. Reality and virtual reality seem to be integrated on the extremely smooth mirror. If you look carefully, you can''t identify the boundary, as if this is the entrance of another world.

This magical effect can not be achieved by using the most precise plane processing technology on earth.

In terms of specific tolerance, the flatness of the mirror is likely to have exceeded 0.00001, that is, 10 nm.

What''s the concept? It''s said that the machine tool with the highest accuracy on the earth has only 10 nanometers. Please note that this kind of ultra precision machine tool can only process a very small plane.

(the author doesn''t know if 10 nm will have such an effect, but no one can verify it, so I wrote it casually)

even Earth Science and technology can''t make a decision, Renault just caressed it around with its machining magic power, and then it did it easily.

He deserves the name of "humanoid ultra precision machine tool" with two legs.

Seeing that the girl couldn''t come back for a long time, Renault asked with a smile, "how about this gift?"

But Angela turns a deaf ear. She walks to the mirror foolishly and stares at herself in the mirror. This girl is probably still in her lifetime. For the first time, she can see clearly what she looks like.

The three maids in the dining room couldn''t help coming and staring at themselves in the mirror.

Renault shook his head speechless.

MMP, you can be fascinated by it in the mirror. It''s really a puzzling creature.

This scene reminds Renault of one thing.

Before crossing, there was a subway station near the company where he worked. The exit of the station was close to the toilet, and a large mirror was hanging on the wall.

When many people pass by the mirror, they can go to the front of the mirror and have a look. Even some people who have passed by will come back to have a look.

He has noticed that more than 95% of those who do so are women.

Adanisi''s reaction was the most interesting. When she saw "another strange cat" in the mirror, she was obviously stunned for a moment, and she was at a loss.

As a feline, it has a strong sense of territory, and "cat in the mirror" is soon regarded as an intruder. Renault noticed that its mouth is slightly open, its beard is tight, and its eyes are staring at "cat in the mirror".

"Cat in the mirror" naturally made the same action. After the two cats looked at each other for a moment, adanis looked up at Renault, as if expecting the owner to drive away the invaders.

Seeing Renault''s indifference, he immediately decided to go it alone.

Adanis stepped back and walked towards the wall. It was obvious that she was going to encircle the intruder.

However, from the corner of his eye, he noticed that "cat in the mirror" seemed to be planning to do the same. This discovery made his movements stiff, and one of his forepaws was hanging in the air, and he didn''t land.

Why is the enemy so cunning? What should Ben do?

The kitten was at a loss.

But adanis was a decisive cat in her heart. She only hesitated for a moment and made up her mind: since the sneak attack failed, the cat would attack.

It stepped back and forced on the blanket, and immediately started its body shape. It rushed directly at the "cat in the mirror". After jumping up, it instantly popped sharp claws on its front paws.

Renault shakes his head at the sight. How can labor and capital raise a stupid cat and fight with the mirror

Some boring scientists on earth have done an experiment called "mirror test", in which all kinds of animals look in the mirror to see if they can distinguish their image in the mirror.

They think that this represents a kind of "self-awareness", in other words, it''s stupid not to recognize it.

Orangutans, elephants and even magpies passed the test, but cats and dogs failed.

The cats on earth are stupid. Are the alien cats stupid?

At the moment when adanis was about to touch the mirror, she suddenly felt her belly tighten and her body soared.

The familiar black cloth is back

The little female cat is still ready to struggle. She can see a black cloth on the cat in the mirror. She stops struggling and shows a trace of confusion in her eyes.

Renault nodded to himself. It seemed that the little thing was not too stupid.The girl and the three maids were shocked by the noise made by adanis. While the girl looked back, Renault quickly asked her own question.

"How about this trick?"

Four heads moving.

"Satisfied with the present?"

This time, only the girl nodded, and the three maids showed great admiration.

"If I sell it to you..."

Renault''s words have not finished, the girl has been vigilant to cover the wallet on the belt.

He could not laugh or cry and said: "what I said is if..."

After a pause, Renault continued, "how much are you willing to spend on it at most?"

The girl still tightly covered her purse. After thinking for a while, she reported a number: "up to 200 jinnals."

Renault touched his chin with satisfaction.

Hehe, it seems that the master can open a black shop in the future.

On the other side, the three maids looked in shock at the mirror standing still on the ground.

This iron plate was touched by the Lord, and someone was willing to buy it for 200 jinnals

This money is too easy to earn