"What is disturbing you, might as well tell me about it?" Yang Guang didn't have the embarrassment of Su You who stretched out his hand but didn't know whether to take it back, or asked Biye with a smile with the confidence of a great country, and the ministers stood behind him and nodded, but no one noticed Su You's embarrassment.

"The king of our country asked the craftsman to make this crown and present it to the Son of Heaven of the Great Sui, and sincerely hoped that the Persian merchants could be as good as ever with the Great Sui. But the king does not have the majesty of the emperor of the Great Sui, and although the craftsman is skillful, he is extremely greedy for money. After the king asked the craftsman to make this crown, he was afraid that the craftsman would cut corners and put something else in, if so, it would be a great disrespect to the emperor of the Great Sui. Biye spoke of distress, but the smile in his heart betrayed his cunning.

Of course, Yang Guang had already understood Biye's deliberate difficulty at this time, but he had no idea in his heart for a while, nodded, but only said nothing, Liu Jianzhi observed his words, and took a step forward and said: "Biye envoy, the so-called 'sending goose feathers for thousands of miles, courtesy is light and affectionate', my emperor is magnanimous, how can he care about these trivial matters with you?" Whether the crown is true or not, the Holy One knows your intentions, and you don't have to blame yourself for it. ”

Liu Jianzhi had obviously guessed Biye's intentions, and it seemed that he couldn't get the crown without distinguishing the real from the fake, but he just thought that it was not easy to tell whether the crown was pure gold or not, so he nipped his idea in the bud without waiting for Biye to ask Yang Guang for advice.

Biye deliberately did this, how could he retreat lightly? At this moment, he shook his head with great sadness and said: "Although the Emperor of the Great Sui will not mind the authenticity of the crown, but Persia is also a big country, how can he give inferior property rights as gifts?" Please think of a proper way to prove whether this crown is pure gold, if the crown is not pure, we dare not dedicate the crown to the emperor of the Great Sui. ”

As soon as Biye's words came out, the ministers looked at each other, and even Bade secretly gave him a thumbs up: "It's amazing." However, when his eyes swept over Su You, he had already guessed that Biye was afraid that he would return this time, and it was doomed to be in vain.

"Well, it shouldn't be difficult to solve. Where am I to the great master? Yang Guang's words belong to the logic of Jesus,—— to Caesar's things that are to Caesar, and to God what is God's. - Of course, the craftsman's affairs should be handled by the craftsman, not to mention that Yu Wenkai is still a master craftsman?

Su You was a little anxious when he saw Yang Guang calling Yu Wenkai, in fact, he already knew the proof method. However, many officials here are the most humble about him, so it is not good to take the initiative to steal the limelight from others, so as not to be hated by others.

"Holy Lord, of course there is a way to discern, but I am afraid that it will damage the crown!" Yu Wenkai is also a little embarrassed, after all, he has a specialization in the art industry, you ask him to draw a design map of the city or make a big tent or something, he can get it for you immediately, but let him fiddle with the blacksmith's things, it's really a bit embarrassing, Yang Guang really made a mistake in formal logic when he found him, the master and the master sometimes just have the same name, but the professional skills may not be right.

"Exactly? Speak it out. Yang Guang nodded and waited for him to continue, but several officials next to him asked anxiously, and Yang Guang did not blame them for being rude at this time.

"Gold is in the fire, if the five-colored gas is generated, there is copper in it, and if there are other components, it is also different from the flame. If the Holy Lord asks me to distinguish purity, I need to use fire, but I am afraid that I will ......" Yu Wenkai wanted to speak and stopped, he could think that this stupid method was already the limit, Yang Guang shook his head, even if it was really tested, what then? He didn't want a lump of gold.

"The Son of Heaven of the Great Sui, we can't hide it, we have to distinguish the authenticity of the crown, and we also use this method, but if the crown is damaged, it is always not beautiful. I have heard that the Great Sui people are outstanding, and the Son of Heaven of the Great Sui will definitely be able to come up with a way to get the best of both worlds. Biye didn't know how happy he was when he saw that the master craftsman Yu Wenkai was helpless, but he still showed humility and confusion on his lips.

Yang Guang waved his hand, and Yu Wenkai retreated with a shameful face.

"Your Majesty, Xiao Chen suddenly remembered a story...... "Su You can't get used to Biye's villain's ambition, and more importantly, he doesn't want to see the diplomacy of a big country lose in this insignificant crown."

When everyone heard Su You tell the story, they all glared at him angrily for a while, and the officials of the Great Sui showed unprecedented unanimity, obviously at this time, the internal contradictions of the people were heavily covered up by national feelings. Yang Guang didn't like it when he heard Su You tell a story, but he at least remembered the surprises that Su You gave him, such as printing, horseshoes and compasses......

"Su Qing has something to say, please speak directly." Yang Guang finally gave Su You a chance, after all, now is the time to delay time, maybe if it drags on for a while, some courtier will be able to come up with a way? However, what he didn't expect was that at this moment, except for him who was still thinking about a solution to the problem, there was a good chance that everyone else would have to look at Su You's appearance.

"Eight hundred years ago, ancient Greece gave birth to a great scientist named Archimedes. Am I right? Bard from Rome. When Su You finished the first sentence, he asked Bud, who was not far from him.

"That's right, a great scientist with a deep knowledge of mathematics and astronomy." Bard's answer makes people think that Su is lobbying a true story, but everyone still feels inexplicable about his storytelling.

"Legend has it that King Syraguhenon had a craftsman make him a crown of pure gold, and the king wanted to check whether the crown was pure gold, but could not destroy it, and apparently we had the same problem as the king. The king invited Archimedes to examine him, but Archimedes could not do anything about it.

Then one day, he was taking a bath at home, and when he sat in the bathtub, he saw the water overflowing and felt his body gently lifted up. It dawned on him that the specific gravity of the golden crown could be determined by measuring the displacement of solids in water. He jumped out of the tub in excitement, ran out without even putting on his clothes, and shouted 'Eureka! Eureka! ’”

Su You's story is finished, but there are few people who can understand it, which makes Su You very sad.

"Eureka? What do you mean? Biye was overjoyed that Su You still had no answer after he finished the story, and actually took over Su You's words.

"yes, I see. So, you know what? Su You asked Biye with a smile, but the latter shook his head; When Su You looked at the hundred officials on the scene again, most of them were shaking their heads, but Yang Guang nodded, and he didn't know whether to praise Su You for saying the answer, or if he got the answer.

"To put it simply, two pieces of gold of equal weight are the same volume. Now we want to check whether the crown is pure gold, just find a piece of gold that weighs the same weight as the crown, and put it in a basin full of water to see if the water discharged is the same. Su You simply said the test method, and most people were already able to understand it, but they didn't believe it all.

"Why don't you get it yet?" When Yang Guang heard Su You say this, he finally breathed a sigh of relief and immediately ordered the inner servant.

After a while, as Yang Guang ordered, the chamberlain took a piece of gold, two glasses, two gold basins, one large and one small, and a bucket of water to put next to it.

Su You first weighed the gold as heavy as the crown with a scale, and then threw it into a small basin filled with water, the large basin was placed under the small basin, and after receiving the overflowing water, Su You filled the water with a glass; The above steps were repeated with the crown to get a second overflow.

"Your Majesty, this crown is not pure gold." Su You looked at the two different glasses of water and drew a conclusion to this experiment, in fact, everyone already knew the result when Su You had just finished the test, and as the experiment progressed, Biye's face had changed color several times, and he was still pretending to be calm at this time, just praying that Emperor Sui would be merciful.

"If you don't believe it, it's easy to verify. We can find the master craftsman Liao Xuan to melt the crown......" Su You looked at the Persian envoy Biye stunned in the local area, thinking that his explanation was not clear enough, but the words he said were extremely confident, "It's just like that......"

"No more testing." Hearing Su You's questioning, he immediately discovered his delicate situation, so he turned sideways to avoid the platform, pushed the golden mountain and poured the jade pillar, knelt down to Emperor Yang Guang of Sui with great piety, and said loudly, "The Persian envoy Biye wishes the Son of Heaven of the Great Sui, long live." ”

The ministers were all relieved to see Biyebai fall to the ground, and quietly theorized about Su You's cleverness, but at this moment, an annoying voice sounded: "The son of heaven of the Great Sui, the foreign ministers also have some doubts. ”

Everyone followed the prestige, but the speaker was Ono Meizi, the envoy of the Japanese Kingdom.