Chapter 638

"How to distinguish?" I asked coldly tomorrow night.

"Glass and diamond have different ignition points It must be distinguishable. " The girl immediately said.

The next night said coldly, "Yunwei, you come to tell her whether this method is feasible."

This offends people's matter, tomorrow night cold is really to give Yunwei to do.

Yun Wei sighed and said, "diamond is a simple carbon, its ignition point and melting point are low. If you burn it with fire, it is easy for diamond to be burned out. Moreover, glass is amorphous, so there is no fixed ignition point and melting point. It only has melting range. Therefore, diamond and glass may be burned out at the same time with fire. Obviously, it is not easy to distinguish glass from diamond

The girl looked at Yunwei resentfully. Obviously, Yunwei's answer made her answer seem so fragile and vulnerable.

"The burning point of diamonds is at least 600 degrees Celsius," he said in a cold voice tomorrow night. Whose alcohol lamp can burn 600 degrees centigrade? Out

That girl Leng Leng Leng, although is not willing, but had to follow the next night cold subordinate to walk out together.

However, Lisa Fang glances at Yun Wei uneasily. The night is cold and the night is just like singing with Yun Wei. It makes Yunwei not like she is here for the exam, but as an examiner.

The examinees answer continuously, can't let tomorrow night cold satisfy at all.

The rest of the candidates, for a moment, no one dare to continue to answer, for fear of becoming the one who was immediately said "out" by the cold of tomorrow night.

Tomorrow night Leng snorted with satisfaction: "well, if no one can answer this question again, the exam will be finished in five minutes. Everybody's out

Everyone, look at me, I look at you. Obviously, the arbitrary method of cold tomorrow night makes people feel choked. But who can change the idea of cold tomorrow night?

At the moment, we all turn our eyes to Yunwei, looking at Yunwei for help. It seems that at least Yunwei still has a way, so as not to let everyone be annihilated.

Yunwei takes a look at the plate mixed with broken diamond and broken glass. In fact, with her eyes, the difference between broken diamond and broken glass is very big. Her eyes can see the fine texture structure of diamond and glass, and can easily distinguish their differences.

But she couldn't tell me that she could see through diamonds and glass? Told the cold night, he is absolutely impossible to believe.

It's not just him, but maybe no one can believe Yunwei's eyes. Can you tell the real from the fake jewelry and diamonds with the naked eye?

After all, there is no such person in the world with such eyes.

She had to think of something else.

The next night Leng didn't want to stay here any longer. He said to his subordinates, "you have two minutes to watch them. Two minutes later, let me know. "

"Cold little I'll try. " Yunwei stood up and said.

Tomorrow night Leng was going to go. When she turned around, Yunwei had already opened her mouth.

He stopped and turned back. "You only have two minutes."

"Good." Yunwei turns to the meeting room where the teacups are placed.

She chose a large glass teacup, put more than half a cup of water in it, and then poured the broken diamond and broken glass into the water.

Tomorrow night, she would like to use the different refractive index of diamond and glass to distinguish diamond and glass?