Yu Fan, Chen Huanyang, and Guo Na were not in a hurry to make a move, they were also very curious about where the magic of this "magic water purifier" was.

A man wearing glasses and a white coat spoke: "Uncles and aunts, come and stand a little back, give us a space to show." As he spoke, the other two men in white coats dared the onlookers back a little. These two should be assistants.

The glasses man who was speaking unbuttoned his white coat with his hand and pushed it back in a chic manner, which felt like a martial arts hero shaking his cloak and making a handsome appearance.

But the layman looks at the liveliness, and the insider looks at the doorway. Friends who work in the laboratory know that the white coat has only one role in scientific research, and that is to prevent fouling. However, in film and television dramas, we often see many scientific researchers deliberately unbuttoning when doing experiments, creating a feeling of fairy wind and bones. In fact, this is all ignorance and coolness.

With just this simple action, Yu Fan can conclude that this man with glasses is unprofessional.

The man with glasses said to everyone with a serious face: "We are a subordinate institution of the Chinese Academy of Sciences, and today we are here to do a popular science activity on health for you." "There were more and more onlookers, and the people in the back couldn't see it, so they squeezed to the front.

"As we all know, the water quality in and around LZ City is very poor, there are a lot of impurities in the water we drink, harmful microorganisms, which make people's immunity decrease, easy to get sick, and there are many heavy metals in the water, which are distributed in the human body in the form of ions, if people drink this water for a long time, then it will be heavy metal poisoning, and even cancer." Come, let me ask you a question, what kind of water do you usually drink? ”

The masses have their own answers, "Our family drinks mineral water." "We boil tap water at home. ”

There was also a voice that said, "We don't drink water in our house, we only drink drinks." Everyone burst into laughter.

The man with glasses also laughed, he pushed his glasses and quipped: "That big brother who only drinks drinks at home, what kind of family?" Pig breeders? "Hahaha, everyone laughed even harder.

The man with glasses shook his white coat back again and said, "Okay, no matter what water you drink, we'll do an experiment today." Let's see how the water you drink compares to the water purified by our Divine Water Purifier. As he spoke, the man with glasses asked the two assistants next to him to fetch two cups, one containing local tap water and the other containing water filtered by their water purifier.

Then the man with glasses took out a pen, and he told everyone that this is a high-tech pen called a TDS pen, which is used to measure the amount of impurities in the water. He put his pen into the tap water, and the pen showed 187, and into the purified water, the pen showed 12.

At this time, the onlookers began to exclaim that compared with the purified water they usually use, there are more than ten times more impurities!

The man with glasses also told everyone very seriously: "It seems that the water pollution level here is much worse than we expected." As he spoke, the man in glasses took out another device from under the table and placed it on the table, which was connected to four metal rods. The man with glasses said: "Maybe everyone is not very sensitive to this value, you may say that I am not faking, so let's use this water quality detector to test it." ”

As he spoke, the man with glasses inserted two of the four rod heads of the water electrolyzer into these two cups of water respectively to energize it, and a probe in the tap water began to bubble, and as some flocculent matter rose to the surface of the water bubble, two or three minutes later, the water surface of the glass was full of black and yellow floating objects, and the water in the water cup gradually changed from the initial colorless to yellow, blue and other colors.

The crowd of onlookers began to talk about the tap water they usually use, but now it looks like the water that has been fished out of the dung pit, and it is as filthy as it is.

Yu Fan watched all this intently. Chen Jieyang next to him quietly asked Yu Fan and Guo Na: "What's going on?" Do you have any eyebrows? ”

Yu Fan was silent. Guo Na touched his chin and guessed: "I'm still thinking about the reason, but I think it should be the problem of those metal rods, and those metal rods have been manipulated in advance." ”

The man with glasses took out a "chemical substance comparison table", which said that different colors represented different chemicals. Yellow: dissolved acids, silicon compounds, organic minerals, molybdenum, silicon, fluoride, other organic compounds; Green: arsenic (arsenic), mercury, lead, copper, sodium; Blue: bacteria, viruses, carcinogens, organophosphates (fertilizers, detergents and pesticides), etc.; Red: iron and rust, bacteria; White: lead, zinc, mercury, inorganic salt dirt; Ferrous : heavy metals (zinc, lead, copper, chromium, manganese, cadmium);

Judging from the colorful colors of the water now, according to the man with glasses, there are really five poisons in the water! The onlookers were talking louder and louder.

The man with glasses picked up the cloudy cup and said to everyone, "This is the tap water you usually boil?" I want to ask, do you usually drink this water? Who would dare to drink one on the spot? “

The crowd was silent, they couldn't believe that the water they usually drank was like this.

The glasses man continued: "Ordinary water purifiers can only purify some dirty things, but our magic water purifier is a high-level water purifier invented by the academician of the Chinese Academy of Sciences for a lifetime of research and development, which has our patented LHL technology, which can purify the water to the extreme...... "Let's go, the glasses man began to settle for his things."

Chen Jiaoyang whispered: "This grandson's style is not the same as the previous one, he has taken the scientific route, right, Lao Yu, hey?" Old than? Chen Jiaoyang turned his face, and Yu Fan disappeared. It's strange, where did Yu Fan go?

Guo Na saw that Chen Jiaoyang was looking for Yu Fan, and she also turned her head and found that Yu Fan didn't know when he disappeared.

The man with glasses is still explaining his water purifier: "The water we purify can not only keep everyone healthy, but also treat everyone's cervical spondylosis, lumbar spondylosis, coronary heart disease and so on." After the end of today's popular science, we have ten miraculous water purifiers that can be experienced by everyone in the form of support at a preferential price. "The man with glasses blew more and more, as if he drank their divine water, and any disease could be cured.

The crowd is also starting to get more and more excited, and everyone seems to want to jump and prepare to buy it.

"That's almost!" A loud voice came from the crowd, "I see, you're a bunch of liars!" ”

Everyone followed the sound and looked at it, it was a young ****** young man.

That's right, that person is Yu Fan.