"I know that in the past, uranium oxide powder was used to coat things like watch hands for easy viewing at night, because those radioactive elements can glow at night." Fan Meng said while looking at the pile of glowing tableware.

"But those things emit light for use in certain situations. I never knew that daily necessities like glass could also contain radioactive elements like uranium."

"In fact, radioactive elements were widely used before World War II. Dyes containing radioactive elements were added to a series of things such as glass and ceramics to color them."

"For example, in addition to Vaseline glass, uranium was also used in the glaze of orange-red antique tableware before 1944. It was called "radioactive red" and was once a common utensil in American kitchens."

However, after the outbreak of World War II, this radioactive element was used in weapons development, so the production of civilian products in this area was stopped, and the factory began to switch to the production of other things. "

"At the end of the war, cheaper dyes were discovered to replace this dangerous dye, and the use of uranium also required complicated approval documents, so the industry basically disappeared."

"In other words, these are precious glass products that are no longer produced?" Fan Meng asked excitedly. After all, limited edition products are often much more expensive than mass production.

"You can say it this way. After all, industrial mass production no longer exists, and glass products are consumables that are difficult to preserve for a long time." Liang En nodded.

"However, it would be wrong to say that it is no longer produced at all, because Germany, the United Kingdom and New Zealand still produce small amounts of this radioactive glass, but it is mainly used to create glass art rather than daily utensils."

"That's actually not much different from stopping production." Fan Meng nodded. "By the way, how should I store this kind of thing? Do I need to get a lead box or something?"

"The principles for treating uranium glass are the same as those for lead glass. There is no need to worry too much about occasional contact or even use, but from a safety perspective, food and drinks should not be stored in such containers." Liang En thought for a moment and replied. .

"Special care should be taken not to add acidic drinks, which may leach uranium. In addition, no more than two hours a day should be spent cleaning uranium glass."

"Don't worry, I will just put these things in the glass cabinet as a display and won't use them," Fan Meng said with a smile, "After all, we are a restaurant here, and it is a very good idea to display some interesting tableware. .”

In this way, they were searching and cleaning up at the same time. The two of them reluctantly finished cleaning up the entire attic only after the sun had set. Fortunately, the final task of throwing away the trash could be done by the driver in the hotel.

"Thank you very much for your help to Fan Meng. If nothing else, I would like to toast you here, Uncle Fan." Since it was dinner time after cleaning up, Fan Meng's father simply cooked six dishes and one soup for Liang Liang. Yes, eat.

"It's nothing. Since we are young, shouldn't we consider each other if we have the chance?" Liang En also raised his tea cup to indicate.

There were no alcoholic drinks on the table, because few of them drank much, so everyone had tea instead of wine. However, to show solemnity, the tea Fan Meng's father brewed was this year's New Longjing.

Soon, several people chatted about their next plans. When they learned that Liang En would go to China to participate in an international joint scientific expedition on the Maritime Silk Road, both Fan Meng and Uncle Fan showed envy. expression.

"The land of Fujian. Legend has it that our family first immigrated from that place." Uncle Fan showed a sigh of relief after knowing the specific place where Liang En was going.

The topography of the land of Fujian has always been eight mountains, one water and one farmland, so it cannot support too many people. Fortunately, this place has a long coastline, so the locals have had the habit of immigrating overseas since ancient times.

For example, in the Chinatowns in many countries that Liang En visited before, a large part of the old immigrants were their ancestors who migrated from China and Fujian.

"It's a pity that you are on official business this time, otherwise Xiaomeng could go to visit your hometown with you." Uncle Fan said with some regret. "We have written letters and contacted our hometown before, but we have never gone back to visit."

"Actually, I still have a self-funded quota here." Liang En said with a smile. "If Fan Meng is willing, I can give him this spot, and he will have a lot of free time this time."

"For example, we can go earlier, so that we can visit your hometown first, and then participate in the joint scientific expedition together."

The reason why he wasn't called Fan Meng before was because everyone had been busy in the United States for a long time, so there was no need to call him Fan Meng for a job like this that didn't involve much manual labor.

Fortunately, there is still some time before the start of my event, so it is not difficult to add one more person temporarily. I just need to go to the embassy tomorrow to register with the documents.

In the following time, several people spent their dinner happily chatting and eating. When Liang En left, Fan Meng's father also gave him a stack of anonymous recharge cards from the restaurant.

Obviously, Fan Meng had told his father about the value of the things discovered today, so Uncle Fan gave these things to Liang En.

Based on their relationship, it would not be appropriate for Liang En to do such a favor, but since both parties are acquaintances, they certainly cannot give money, so giving vouchers for such a restaurant is naturally the best choice. .

Because Fan Meng knew about Joan of Arc's existence, in addition to these voucher cards, he also specially packaged four dishes for him to take home and share with his companions.

"Welcome home!" After Liang En returned to the ranch and knocked on the door, the door opened. Joan was wearing home clothes, an apron around her waist, a scarf on her head, and a rag in her hand. .

"What are you doing? Have you eaten yet?" Liang En said, raising the lunch box with food in his hand and said, "If you haven't eaten, you can eat some. These dishes have just been prepared and are still hot. .”

"I have been tidying up the room before. I have been busy before and I didn't have time to tidy up properly. I just have time today to tidy up all the rooms." Jeanne showed a smile. “It’s basically sorted out now.”

For knights, what they have to do is not only pursue and fight for the lord they are loyal to, and pay taxes to the lord, but also take care of their lord's life.

Although there are no traditional rules in Liang En's place, Jeanne has always insisted on her own practices, such as doing various housework.

So in the following time, Liang En also picked up the rag and broom and quickly cleaned the rooms. After a few minutes, the two of them finished the work and then shared the delicacies that Liang En brought back.

"By the way, what should I bring to China this time?" During the meal, Joan asked about what she needed to do next. "I think I can take advantage of these few days to pack the luggage we need."

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