Sophie had to go to work, so Li Du brought Ah Ow outside.
There was a large lawn in the hospital, and many people were resting there. He brought the little dog to the lawn, and as soon as the sun shone on it and the wind blew, it was as if it had been injected with stimulants, and it immediately became spirited.
Even though Ah Ow's legs were short and she was not very agile since she was born, she was still very impressive on the lawn.
The only problem was that she was still too small. The lawn was uneven, and there were potholes in some places. It was easy for her to fall into them.
Ah Ow was young, small, and weak in her legs. Once she fell into the pit, she could not climb out. She could only howl, howl, howl, howl.
At noon, Li Du treated Sophie to lunch.
There was a music restaurant in Flagstaff. It was very high-end, and there were small private rooms with different music playing in different rooms.
The two of them chose a piano room. Sophie explained the music to him, and Li Du introduced the dishes to her. They had a good time eating.
In the afternoon, Hans called Li Du and said, "I contacted a home. They have mahogany experts. I want to ask them to identify the wood."
Li Du was also very concerned. He first went back to the Pine Tree Tops room to look at the treasures he had collected, and then returned to the campsite.
Among the treasures he had collected, the most valuable was the Trossi-Leggenda watch on his wrist. He did not have to worry about it being stolen, as he always wore it.
Next was the jeweled army knife he had gotten from the Arabian. This knife was inlaid with beautiful gemstones, and the blade was sharp. The material was exquisite, and the handle and scabbard were made of ivory.
However, what made this knife valuable was the identity of its owner. Li Du used his ability to relive the past to see that the owners of this knife were either rich or powerful.
The last owner was often seen in the news. It was the supreme leader of Libya, Omar Muammar Gaddafi.
Even without the little bug's special ability, he could still find the shadow of this knife. In some news articles about Gaddafi, his office desk would sometimes appear, and this knife would be placed right in the middle of the desk.
Unfortunately, there was no information about this knife on the Internet. Li Du guessed that it was not a legendary knife. It was only collected by Gaddafi because it was made of a lot of rare materials.
In addition, there were papyri that he did not understand. He had not been able to decipher the words on these papyri, and he did not know what was written on them.
These three items were his private collection, and on the table was a specimen of a dodo bird that was openly displayed to the public.
This thing almost didn't belong to him anymore, but he was still very satisfied with the fact that a specimen could be exchanged for a million dollars.
When he arrived at the campsite, the mahogany experts were already there. They were a middle-aged Chinese man and an old Caucasian man. Both of them had brought their tools to the campsite.
Hans introduced them and said, "This is your compatriot. His name is Antonio Su. His family has been researching mahogany for a long time. And this gentleman, Bart Kerry, is an expert in wood and furniture. "
Li Du shook hands with the two men, and Antonio Sur asked in awkward Chinese, "Ni Hao, Li, you're very good at messing with people. My foot Yoriko is from Jiangnan."
His Chinese made Mr. Li feel awkward. Mr. Li introduced himself and opened the wooden box, revealing the tree trunks inside.
Seeing these tree trunks, the two of them looked at each other and nodded at the same time.
Seeing this, Hans happily asked, "Is the result very optimistic?"
Bart said, "It needs to be identified, but from the appearance, the result is very optimistic."
Li Du asked, "What can you tell from the appearance?"
Antonio started to explain. He said, "These wood belong to different species of mahogany. Perhaps you know that there are 33 types of mahogany, and from the appearance, they all look different."
"Take this for example," he pointed to a section of purplish-red tree trunk, "this looks like red sandalwood, and it looks like Indian red sandalwood, a very precious species."
Li Du said, "I've been learning about this recently, but from what I know, African red sandalwood looks very similar to this."
Antonio laughed and said, "Forgive me for being blunt, but you may have learned some knowledge, but you still lack experience. The color of Indian red sandalwood is red at first, and gradually darkens. Compared to African red sandalwood, there are patterns in the purple, and it doesn't dry out.
"African red sandalwood is purplish-black, has no luster, and the fibers are thick. After drying and shrinking, there are a lot of wrinkles, and it's very ugly.
"If there's something strange, it would be that although they are both red sandalwood, Indian red sandalwood is a living wood, while other red sandalwoods are dead."
While Antonio was explaining, Bart started to work.
He asked for their opinions, and after getting permission, he cut a small piece from each trunk, and then divided it into several smaller pieces for different treatments.
He took a small piece of each type, put it in a small beaker, and added some solvent. He also cut the pieces and put them under a microscope. There were many ways to treat them.
When Hans saw this, he was surprised. "Is the inspection so complicated?"
Bart laughed, "Of course, it takes five or six hours."
Hans looked at Li Du and said, "All of us lack knowledge about mahogany. It turns out that when we were in Holbrook, we were very stupid."
Some of them called their friends to describe it, some took pictures to show their friends, and some made videos, thinking that they could identify the true identity of the mahogany.
It turned out that these methods were very low-level and unreliable.
The most precious of all the mahogany was the Indian red sandalwood, and the two began to examine the purplish-red wood.
Bart took out a piece of white paper, took a piece of wood, and drew on the white paper. He drew more than ten lines in a row, and all of them had purplish-red marks. From the first line to the last, the marks remained the same.
Li Du asked, "Still can't identify the mahogany?"
Bart laughed, "Sir, you don't know how advanced counterfeiting technology is nowadays. You can use potassium permanganate mixed with iodine and litmus solution to soak some wood, and you can fake it."
As he spoke, he cut some wood chips from the piece of wood and put them in a glass filled with water. "We can wait," he said. "Later, we'll use fluorescence detection to identify the mahogany."
"It shouldn't be a big problem," said Antonio, who was examining the mahogany under the microscope.
Li Du moved closer to the microscope to take a look. In the lens, there was a magnified cross-section of the wood and the fiber lines.
He couldn't see anything, but for Antonio and Bart, who had been in contact with wood every day, the microscope revealed too much information.
Antonio was a good teacher, and said, "This is a 30x microscope, the most authoritative way to identify mahogany. Of course, it has to be combined with other physical methods. Do you want to know?"
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