Chapter 638 (1/2)

”How to distinguish?” Asked Leng tomorrow night.

”The ignition point of glass and diamond is different... It must be distinguishable.” The girl said immediately.

Tomorrow night said coldly, ”Yunwei, tell her whether this method is feasible.”

It's really going to be left to Yun Wei to do all the things that offend people.

Yunwei sighed and said, ”diamonds are simple carbon with low ignition point and melting point. If they are burned by fire, diamonds can easily be burned away. Moreover, glass is amorphous. It can't be said that it has a fixed ignition point and melting point. It only has a melting range. Therefore, when burned by fire, both diamonds and glass may be burned at the same time. Obviously, it's not easy to distinguish between glass and diamonds. ”

The girl gave Yunwei a resentful look. Obviously, Yunwei's answer made her answer look so fragile and vulnerable.

The cold voice of tomorrow night said, ”the ignition point of diamonds is at least 600 degrees Celsius. Whose alcohol lamp can burn out a high temperature of 600 degrees Celsius? Out! ”

The girl was stunned. Although she was unwilling, she had to go out with her subordinates who were cold tomorrow night.

Lisa Fang glanced at Yunwei uncomfortably. The cold tomorrow night made Yunwei sing in unison with Yunwei, which made Yunwei look like an examiner instead of taking the exam.

The candidates' continuous answers can't satisfy the cold tomorrow night.

The rest of the candidates did not dare to answer again for a moment, for fear of becoming the one who was immediately said ”out” by 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. Everyone is out! ”

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