Master of Thermodynamics

Is it necessary to have 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 faintly illuminated figure on the metal surface, and a question suddenly appeared in his mind.

He has lived on the earth for more than 20 years, and all the mirrors he comes into contact with are all glass products.

As a result, Renault has formed an inherent concept invisibly: a mirror is glass, and glass is a mirror.

After crossing into another 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?

Labor and capital are even clear about the principle of float glass. Coupled with the magic black technology, a large flat glass of 5 meters by 5 meters can be easily smashed out.

However, after hearing the praises of the turtles for the "Silver Ship", he suddenly thought of one thing: Mirrors do not necessarily have to be glass.

Moreover, Renault is also ready to take advantage of this and turn it into an interesting trick in front of the girl.

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

It was a 2 meter high and 1 meter wide steel plate with a thickness of more than 3 millimeters. The surface was quite rough, and it looked a bit ugly under the flames sprinkled by the flame crystal snails.

It is strange that the steel plate does not have any support, so it stands upright on the ground, motionless.

The girl turned her head and took a look, and asked suspiciously, "Renault, the gift you are talking about...is this?"

However, the girl didn't mean anything to despise, she was just puzzled.

This alien girl is refreshing and simple, not like some shallow species on earth.

Those superficial goods are accustomed to measuring everything by price. They are calculating and comparing in their minds. They think they are shrewd, but they don’t know that this behavior directly puts a striking price tag on themselves—"I’ll sell this. price".

At this kind of moment, thinking about treating oneself as a commodity with the intention of selling a good price, even female slaves from other worlds would not do it, but these people sell with confidence.

The most jaw-dropping thing is that they call it "love."

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

But Miss Archon was completely different from them. Even if Renault really gave the girl an iron plate, she would definitely accept it happily.

Because this is the first time that Renault has given her a present in a serious manner. What about the iron plate? You can cook teppanyaki if you have nothing to do, it is still worth collecting.

Renault stood up, walked towards the iron plate, smiled and said, "It can be said that it is, or it can be said that it is not..."

Shi Shiran walked to the iron plate, stretched out his right hand to press the top of the iron plate, pressed against the surface of the iron plate, and slowly moved down.

At this time, a shocking scene happened!

But the area where Renault had wiped off with his right hand instantly turned into an extremely bright mirror surface, illuminating the mirror surface with the smallest detail.

Angela and the others looked dumbfounded.

This kind of mirror effect is worse than the glass mirrors on the earth. At this time, under the precarious illusory fire light, it is even more dazzling, and even the dining room is clearly bright.

Renault's movements were extremely gentle, without any effort, as if this was originally a mirror, but it was covered with a layer of dust, and he reached out and gently wiped the dust off.

But Angela and others knew that it was not like that.

Because they clearly saw that when Renault's palm moved, a large amount of red hot metal scraps separated from the iron plate and flew into the corner of the restaurant silently.

Only from the "cleaned" corner, the girl suddenly discovered that this mirror seemed to "preserve" another restaurant. All the objects in the real restaurant could be seen as a "replica" in the mirror.

Yes, with the word "clear", it is no longer possible to describe the effect of a mirror. "Replica" is the most accurate description.

The imaging principle of a mirror, to put it plainly, is light reflection. The light reflected from the surface of the human body falls on the mirror surface and is reflected in the eyes of the person, and then the person sees himself.

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

The opposite is diffuse reflection. When the surface of the object is uneven, the reflected light will be scattered, unable to form a parallel beam, and of course it cannot be imaged.

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

From this perspective, even if you find a lump of shit, as long as you can polish it smoothly, you can use it as a mirror.

On the earth, there is only one reason why humans choose to use glass to make mirrors-cost.

When any molten liquid is cooled, due to gravity and surface tension, the surface tends to be flat, but this is only an ideal state, and the actual situation is more complicated. Impurities and crystallization processes will affect the surface smoothness.

In this respect, glass is far superior to metal, and the surface after cooling is quite smooth.

There are mirrors in other worlds, but they are all metal mirrors. Common people use bronze mirrors, and nobles and wealthy merchants use silver mirrors.

Due to the polishing process, even the smoothest and clearest mirrors are not as effective as ordinary glass mirrors on the earth.

As the area "wiped" by Renault became larger and larger, the girl's expression became more and more sluggish, and the maids even grew their mouths unconsciously.

After being completely wiped, the area of ​​the restaurant has also doubled, and the number of people and objects in the restaurant has also doubled.

The most shocking thing is that the mirror seems to have completely disappeared. The reality and the virtual seem to merge on an extremely smooth mirror surface, and the boundary cannot be recognized even if you look closely, as if this is the entrance to another world.

This kind of magical effect can't be achieved even with the most precise plane processing technology on earth.

Described by specific tolerances, the flatness of the mirror is likely to exceed 0.00001, which is 10 nanometers.

What is this concept? It is said that the most accurate machine tool on the earth has an accuracy of only 10 nanometers. Please note that this ultra-precision machine tool can only process a small plane.

(The author does not know if 10 nanometers will have such an effect, but no one can verify this, so I just wrote it casually)

Even the earth science and technology can't handle things, Renault can easily do it by relying on the magical machining skill [Nan Moment], just caressing it casually.

He deserves the name of the "human-shaped ultra-precision machine tool" with two legs.

Seeing that the girl couldn't recover for a long time, Renault smiled and asked, "How about this gift?"

But Angela turned a deaf ear to her ears. She stupidly walked to the mirror and stared at herself in the mirror blankly. It was probably the first time in her life that this girl could see what she looked like so clearly.

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

Renault shook his head speechlessly.

MMP can be fascinated by looking in the mirror. It is a puzzling creature.

This scene made Renault couldn't help but think of one thing.

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

When passing by this mirror, many people will be able to walk in front of the mirror to take a look, and even some people who have already walked by will deliberately walk back to take a look.

He has noticed that among those who do this, more than 95% are women.

Adanis' reaction was the most interesting. Seeing "another unfamiliar cat" appeared in the mirror, she was visibly shocked, behaving a little at a loss.

As a cat, it is born with a strong sense of territory. The "cat in the mirror" was quickly regarded as an intruder. Reynolds noticed that its mouth was slightly open, its beard was taut, and its eyes were unblinking. Staring at the "cat in the mirror".

The "cat in the mirror" naturally made the same action. After the two cats looked at each other for a while, Adanis looked up at Renault, as if she was expecting the owner to take the initiative to drive away the intruder.

Seeing Renault's indifferent appearance, it immediately decided to go it alone.

Adanis stepped back quietly and walked to the wall, apparently intending to go around the back and outflank the intruder.

However, from the corner of its eyes, the "cat in the mirror" seemed to be planning to do the same. This discovery made its movements stiff, and one of its front paws was also suspended in the air, and it did not fall to the ground for a long time.

Why is the enemy so cunning? What should this kitten do?

The little mother cat was at a loss.

But Adanis was a very decisive cat in his bones. It only hesitated for a moment before he made up his mind: Since the sneak attack failed, the cat will attack.

It backed up and pushed **** the blanket, its body immediately started up, and rushed directly at the "cat in the mirror". After jumping up, sharp claws popped out of its front paws.

Renault looked at him and shook his head again and again, how did the labor and management raise a little stupid cat, so why did they fight with the mirror...

Some boring scientists on the earth have done an experiment called the "mirror test", that is, let various animals look in the mirror to see if they can distinguish their own image in the mirror.

They believe that this represents a kind of "self-recognition ability", in other words, it is stupid not to recognize it.

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

Cats on the earth are stupid, are otherworldly cats also stupid?

At the moment when Adanis was about to touch the mirror, she suddenly felt her belly tighten and her body rose into the air.

The familiar black cloth is back again...

The little mother cat was also about to struggle, but a black cloth appeared on the "cat in the mirror", it stopped struggling, and a trace of confusion appeared in her eyes.

Renault nodded secretly, it seemed that this little thing wasn't too stupid.

The movement made by Adanis disturbed the girl and the three maids. While the girl looked back, Renault quickly asked his own question.

"How about this trick?"

The four heads moved continuously.

"Satisfying with the gift?"

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

"If I sell it to you..."

Before Renault had finished speaking, the girl had already vigilantly covered the purse on her belt.

He said dumbfounded: "I'm talking about what if..."

After a pause, Renault continued to ask: "How much are you willing to spend to buy it?"

The girl still held her purse tightly. After thinking for a while, she reported a number: "Up to 200 Kinnars."

Renault stroked his chin with satisfaction.

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

On the other side, the three maids looked at the mirror standing still on the ground with shocked faces.

This iron plate was touched by the lord, and some people were willing to spend 200 Kinnars to buy it...

This money is too good to make...