Lead (Plumbum), element number 82 in the periodic table of chemical elements, chemical symbol Pb, is a silvery-gray, soft-textured heavy metal.

Lead is one of the earliest metals used by humans, and the main ore in the earth's crust is galena. Around 3000 B.C., the ancients accidentally threw galena ore into a bonfire, so that the lead oxide in the ore was reduced by carbon, so that the earliest metal lead was obtained. Because the metal lead itself has considerable flexibility and ductility, it can be rolled into lead skin and lead foil at room temperature. So, from the time it was discovered, it was quickly used in a variety of crafts and trades – the ancient Greeks used lead to make small sculptures, toys and weights; The ancient Romans used lead to make jewelry boxes, wine glasses, and household utensils; In ancient India, lead has always been an important pharmaceutical ingredient; In Japan, lead powder is a traditional cosmetics used by Kabuki actors and Kyoto ministers, and in China, lead is cast into roofs and glazed tiles to make the ancient imperial buildings reflect a bright and brilliant light in the sun......

In addition, lead was dissolved into the diet and blood of the ancients – for example, the pot of low-alcohol sweet wine from the island of Cyprus, which Wang Qiu brought from ancient Egypt, contained as much as 2,500 milligrams of lead per liter...... What is the concept of this value?

According to China's hygiene standards, the blood lead level for lead poisoning is 400 micrograms per liter for adults and 100 micrograms per liter for children. In other words, if the amount of lead in an adult's body exceeds 400 micrograms per liter of blood, it has reached a critical point that causes greater harm to the body.

1 gram = 1000 mg. 1 mg = 1000 mcg. This means that this pot of "high-lead wine" produced on the island of Cyprus in the first century BC requires only a small tablespoon to drink. That's enough to cause chronic lead poisoning! What a poison of poisons!

——The consequences of lead poisoning are terrible, it will cause great damage to the nervous system, digestive system, blood system and reproductive system of the human body, resulting in anemia, liver damage, abdominal cramps, kidney failure, and even toxic encephalopathy, which is clinically manifested as dementia...... The famous musician Beethoven died of lead poisoning, and in the later period of the Roman Empire, various mad emperors and tyrants emerged, and the future Italians became the sick men of Europe. It seems to have something to do with lead poisoning in the whole population – until modern times, the average Italian has a higher level of lead than in other European countries.

“…… How can this wine be so poisonous? Vomit - I drank a big glass just now......" I read this test report. Wang Qiu immediately showed a terrible expression that he wanted to vomit very much, but he couldn't vomit anything, "...... However, I have heard of it though. The Romans used lead skin as a waterproofing layer on the elevated aqueducts. He also used lead to make water pipes, and Zuihou got to the level of lead poisoning in the whole people. But the island of Cyprus, far away in Western Asia, and without the elevated aqueducts of the Romans – at least not in Cleopatra's time – how could so much lead be dissolved in the wine? ”

“…… Hey, do you know how Greco-Roman wine was made? Professor Yang sighed, "...... In order to make wine, they had to make glucose syrup, which had to be boiled in a lead pot to prevent the syrup from being scorched and clumped. Again and again, they heated and stir-fried the grape juice in a lead pan, which greatly increased the lead content in the syrup. When the grape juice is too sour. They also need to add lead to reduce its sour taste......"

Wang Qiudeng took a sharp breath of cold air when he heard this, "...... This...... This is really frustrating and deadly, it's like using lead as MSG! ”

“…… Who's to say it isn't? The ancient Romans seem to have really used lead powder as a condiment! Not only do you sprinkle lead powder on your wine, but even honey water and juices! Did you know that by adding lead powder to your wine, you can get rid of the sourness and make it mellow and sweet? It's because of the production of sweet lead acetate - but the problem is that this thing is toxic and is used in industry to make paints! ”

Professor Yang said calmly, and then returned to the topic,...... Next, in order to ensure the taste of the wine after dilution, the winery did not dilute it with ordinary well and river water, but instead used distilled and concentrated rainwater to make the wine, which was collected from the lead roof, stored in lead barrels, and boiled and concentrated over a long period of time, which already contained a frighteningly high amount of lead...... Zuihou, this wine, which has been deliberately mixed with a large amount of lead and various other harmful impurities, is put into this leaded tin wine jug, and it is in your hands......"

He pointed to the tin flask that had been used to hold the wine, "...... According to another test result that I haven't shown you yet, the lead content of this tin pot is also terrifyingly high - because the nature of tin is relatively soft, so the ancients had to add some lead to it before making pewter to increase its hardness...... Not to mention that it is used to hold this kind of wine with high lead content, even if it is used to drink water, there will be a risk of lead poisoning! ”

- Obviously, such "poisonous wine" will never pass food safety quarantine, so it has no value to collect at all.

What's even worse is that except for Wang Qiu, who had just tasted a large glass of "high-lead poisoned wine", everyone else had more or less drunk a little wine, beer or fruit juice drinks in ancient Egypt, and even earlier, they had also tasted Constantinople wine in the Eastern Roman plane......

As a result, in the midst of the panic in the hearts of the people, all the chengguan began to worry that they would suffer from lead poisoning, and they were almost busy running to the hospital for examination and treatment...... Zuihou, Professor Yang, who still exposed this threat, stood up and persuaded everyone that although lead poisoning is very dangerous, the human body also has the function of screening and excreting metallic lead, as long as you don't drink lead-containing alcohol all the time, even if the blood lead level rises for a while, it won't take long for it to drop, just like alcoholic drunks who don't die of alcohol poisoning, the blood alcohol content will automatically return to safety standards.

From a practical point of view, since the ancient Romans drank so much high-lead wine from childhood to adulthood. It seems that they can live for a long time, so if you have drunk a few sips of lead-containing wine, you will not get sick and die soon - you don't see Taiwanese people who have been drinking plasticizers for 30 years. Didn't you become a national impotence or a national shemale? So, after discovering this danger, as long as everyone doesn't eat in another time and space, and at the same time eats more healthy foods such as oranges that can reduce lead, there is really no need to make a fuss.

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In addition to wine, Wang Qiu has also tried to exploit other resources – usually when it comes to Egypt. It can make people think of the desert, and sand is also a resource that can be sold for a price in modern shijie: in Wang Qiu's city, the price of building yellow sand is about 80 yuan a ton. If the buyer pulls the goods and loads and unloads them by himself, it is 50 yuan a ton. The cost of sand in Egypt is about zero......

So, Wang Qiu tossed repeatedly on both sides of the wormhole for a day, and sent 3,000 tons of sand back. The gross profit was 150,000 yuan. However, after deducting the miscellaneous venue rent and related taxes, the net profit is only less than 80,000 yuan.

What's worse is that Wang Qiu himself was almost exhausted by the overuse of his abilities, and then he lay on the bed for two days to recuperate, and he still felt a little backache from time to time - it felt like the gains outweighed the losses.

Next, the most impressive thing in Egypt besides the desert is the tombs of ancient pharaohs. And Wang Qiu did have the idea of robbing tombs once. It's a pity that Cleopatra's time was too late. The ancient pyramids that stood on the heights of Giza have been around for more than 2,000 years. It was basically stolen by the "inverted bucket experts" of various races, and even the mummy was dragged to where it was. In the Valley of the Kings near Thebes, there are still many mausoleums intact, such as the famous pharaoh Tutankhamun...... It's a pity that the location of the Valley of the Kings is in Upper Egypt, that is, the territory of the rebels in the south, and Cleopatra is still in charge for the time being.

In the vicinity of Alexandria, only the family tombs of the Pharaohs of the Ptolemaic Dynasty, Cleopatra, could not be dug up.

In the desert of Egypt, there are still some oil fields, natural gas fields and mines, but using the jishu of the first century BC to manually exploit is too difficult to exploit at all, and if it is invested in the mining machinery of the twenty-first century, there is no manpower responsible for the operation......

In fact, the most critical problem for the above-mentioned bottlenecks in the alien Shijie colonization cause is that there are only a few people in the chengguan and their professional skills are not enough. If you make some short-term investments, you may be able to barely play if you just get a vote of resources and leave. However, if it is necessary to conquer, colonize, operate and develop a foreign country with a complex surrounding environment and full of dangers for a long time, and establish a solid colonial base in order to plunder resources for a long time...... With the appetite and strength of their small team, it is really a bit unbearable.

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Since he couldn't think of a way to break through the bottleneck and increase profits for a while, Wang Qiu simply didn't think about it, turned around and brewed a cup of instant coffee with a water dispenser, then returned to his seat, opened his laptop, connected to the Internet, and planned to browse the sales of Taobao online stores.

- Some of the bits and pieces they got in the ancient Aztec Empire, the Eastern Roman Empire and ancient Egypt, such as the obsidian knives and beads of the Indians, the statuettes and jewels of the Eastern Roman Empire, and the statues of ancient Egyptian gods, were all sold on Taobao for cash.

“…… The obsidian knives in Central America have finally been sold out, but unfortunately almost no one wants the string of obsidian beads......"

“…… Think the workmanship of the small jewelry of the Eastern Roman Empire is too rough? Alas, how can the craftsmanship jishu of more than 500 years ago be compared with today? ”

“…… Uh, someone wants a whole tusk? Next time I go to Ancient Egypt and see if there is a suitable one. ”

“…… Someone actually stuffed an advertisement in? It's still a long time ago...... Take a look...... Oh my God, there are still such undisciplined people!! ”

——The electronic advertisement reads: The Spring Festival is approaching, I have been unemployed for a long time, and I need to make a living, so I hereby undertake the following work: writing homework for primary school students during the winter vacation. Bullying other classmates on behalf of elementary school students. Hold a family meeting on behalf of the student's parents...... The fees are as follows:

Writing winter vacation homework: 80 yuan for grades 1-3; 100 yuan for grades 4-6; The price of junior high school homework is negotiable.

Bullying classmates: 40 yuan for height 1.3 meters - 1.4 meters, 60 yuan for height 1.4 meters - 1.6 meters, 1.6 meters - 1.8 meters tall for negotiable, height over 1.8 meters free of discussion

Writing love letters: 30 yuan for about 500 words, 50 yuan for 500-1000 words, and 80 yuan for 1000-2000 words. The price of more than 2000 words is negotiable.

Smashing glass: 20 yuan on the first floor, 30 yuan on the second floor, 40 yuan on the third floor, and the price on the fourth floor is negotiable.

(Note: If there are dogs in the community, or if the security guard is strong, please interview.) ）

Those who spend more than 300 yuan can get a free membership card. Students with membership cards can apply for the following special membership services:

Parent-teacher conference: 50 yuan per hour; $80 for one to two hours; $100 for two to three hours; The price is negotiable for more than three hours.

Substitute teacher: 100 yuan for female teachers; 120 yuan for male teachers; The price of PE teachers is negotiable.

……

For such an embarrassing "labor advertisement", Wang Qiu was beating violently on his forehead. I have to secretly sigh that today's businesses really don't care about anything in order to make money, and even the above extremely immoral things can be drummed up...... If this isn't some April Fool's joke.

Alas, if you are in this small team yourself. It would be nice to have such talents who are not disciplined and enterprising, and who are good at business! Although Senior Sister Ma Tong is thick-skinned enough and lacks discipline, it is a pity that her IQ is obviously not high enough, and she really doesn't have such creative thinking!

If there is such a "master" who thinks about his plan to make a fortune. You don't have to worry about the deficit on your bills.

“…… Read on...... There is also a message that is. A fat aunt immigrated to Australia because her family immigrated abroad and wanted to donate a pet dog that she couldn't raise...... A small flower dog plus half a year's of dog food, someone or? He asked, turning to the people in the office.

“…… Yes, yes, yes! But can it be cooked first? Don't add dog food, let's have a pack of condiments! Cai Rong immediately responded happily.

“…… Cai Rong, don't take out the shijie view of foodies and show off......" For Cai Rong, who had a resurgence of foodie nature, Wang Qiu rolled his eyes again - since he entered the Chrono Chengguan team, this seems to have become his habitual action - and at the same time casually clicked on the public mailbox of this Chrono Chengguan independent team, "...... Belch? This is...... My sister's email from Japan? Why is it all garbled? ”

- Looking at the two strange pictures on the screen that look like children's graffiti. The corners of Wang Qiu's mouth couldn't help twitching.

However, Professor Yang, who is an old qualification, seemed to see something in the doorway, and saw him pull a data line. Transferred the garbled pictures in Wang Qiu's computer to his mobile phone, and then started a special decryption program, and slowly displayed two dense texts on the mobile phone.

“…… Comrade Wang Qiu, in the email sent by your sister Comrade Wang Yao, first of all, there is an obituary: The head of the British branch of the Communist International's exorcism column, the 'Red Dragon', the British General Political Commissar John . Yi An. Comrade Dukov unfortunately passed away this Thursday. Comrade Gupta, the rotating chairman of the Comintern's exorcism column for this year, invited us to attend a memorial service in London and at the same time elected the next British General Political Commissar......"

“…… Oh my God, the Comintern has come to collect donations and beg for money again! I don't know how much ...... will be given to the white envelope of this funeral according to the market."

After listening to this obituary, Senior Sister Ma Tong lamented again, "...... Wait, I remember that Commissar Dukov, a South African, only went to the UK in January this year, and at that time we even sent 5,000 dollars as a gift! Why did you die so quickly? ”

“…… That's right, this death is too fast! Cai Rong also said, "...... Could it be that you have encountered some powerful cult or monster? ”

“…… This one...... As far as I know, Commissar Dukov seems to have done nothing in the few months he took office in the UK...... In fact, he was accidentally killed when he was drinking in a bar in Glasgow! Professor Yang explained with some slurry.

“…… Yes? "The whole office was suddenly covered with glasses that fell to the ground - this kind of death is too bad!

“…… Commissar Dukov may have been too drunk at the time, cheering for the English football team in a street bar in Glasgow – the Shijie Cup qualifiers seemed to be on TV at the time – and was beaten up and thrown out by angry Scottish drunks. Originally, this kind of thing is common in the UK, and it is not unusual for drunks to be thrown out of pubs after making trouble every night. But the problem is that before Comrade Dukov could get up, there were a few young British hippies who were racing wild on motorcycles, and they drove straight at the Harley-Davidson locomotive. Because he couldn't see clearly in the black light, he actually ran over Comrade Dukov's body directly......"

Speaking of this, Professor Yang's expression also seemed to be a little tangled, "...... Since the rescue was ineffective, we have now received his obituary. (To be continued......)