The Cold President's Best Master

When Shi Chenggong heard Su Zhifei say that, he didn't scold him, because Shi Chenggong was also very uncomfortable. At least he was also an academician and the chief scientist in this field. Lu Chong asked him to come all the way and just asked him to test hand sanitizer, which was unacceptable to him!

Lu Chong was not surprised by the response of Shi Chenggong, so he smiled and said, "Academician Shi, don't be angry first. After you test my hand washing water, you will understand why I let you test the water, which is very important for the success of our experiment!"

Shi Chenggong was stunned when he heard Lu Chong's words, then looked at the glass of water and asked curiously, "Mr. Lu, is your hand washing water different from others?"

Lu Chong smiled mysteriously: "I say now, you don't believe it. You'd better test it first!"

Seeing that Shi Chenggong was still a little hesitant, Su Zhifei sneered and said, "teacher, don't listen to his nonsense here. He made it clear that he was playing with us. If other experts and scholars knew that we came here to help people detect hand sanitizer, they wouldn't laugh us to death, we would become the laughing stock of the industry!"

Shi Chenggong was a little hesitant. After listening to Su Zhifei's words, he strengthened his confidence, because over the years, Shi Chenggong has done scientific experiments and never cared about how others laugh and criticize. Even the more others laugh and criticize, the more he wants to do. It is precisely because of this spirit of not admitting defeat and not afraid of jokes that he can achieve today's achievements and status, And Su Zhifei said that, which made Shi Chenggong's evaluation of Su Zhifei even lower. He began to think about it. When the experiment was over, he drove Su Zhifei away from him. He didn't deserve to be his own student!

Shi Chenggong simply took the cup of hand washing water.

The reason why he is so straightforward is not only because he is so excited by Su Zhifei, but also because he can see that Lu Chong is not the kind of person who talks nonsense. The head of state can't attach so much importance to a person full of nonsense, nor can he personally find him to do experiments for such a person!

So Shi Chenggong put the water cup on the table in front of him and found an instrument!

This instrument is something similar to the shape of a pen.

Shi Chenggong explained to Lu Chong: "This instrument is called TDS detector, which can also be called TDS detection pen. TDS is the abbreviation of total dissolved solids in English, and its Chinese translation is the total dissolved solids. The measurement unit is mg / L. it indicates how many mg of solid solutes are dissolved in 1 liter of water. It contains the total amount of inorganic salts and organic matter. By detecting the total dissolved solids, the total salinity of water can be analyzed , it is widely used in the field of water treatment in samguo, Baodao and other places. In fact, its measurement principle is to indirectly reflect the TDS value by measuring the conductivity of water. In the physical sense, the more dissolved substances in water, the greater the TDS value of water, the better the conductivity of water, and the greater the conductivity value. Generally speaking, TDS value represents the content of dissolved substances in water. The greater the TDS value, it shows that The more dissolved matter in the water, the less on the contrary, as shown in the value of 100, i.e. 100 mg of impurities per liter.

This detection instrument has many applications in reality. It can detect drinking water. After purified water and mineral water are placed for a long time, the TDS value increases too high compared with the beginning, and the total number of CO viruses and colonies will increase accordingly. At this time, it is not allowed to drink raw, which will affect health; if the TDS value of pure alcohol is 0, it indicates impure; how much washing powder should be put in the washing machine, and using TDS pen to detect can digitize the experience and clean the process After the sequence, the indication detected before drainage is the same as tap water, which can be regarded as clean. If the indication exceeds tap water, the input of washing powder should be reduced; if the TDS value of fruits and vegetables is too high, it can be suspected of chemical pollution, which should be paid attention to. During swimming in the swimming pool, the change of pool water cleanliness can be measured, and attention should be paid to if the indication is too high; the hard water in the North contains For calcium and magnesium ions, the TDS value is high, which will scale; for goldfish tank water, its value can be measured to know its cleanliness. If the value is long and choking, the water should be changed in time; for seafood aquaculture water, its value can be measured for future preparation and detection... "

As Shi Chenggong spoke, he opened the TDS pen probe cover, pressed the on / off button marked below, and inserted the TDS pen into the glass of water after the LCD screen was displayed.

Su Zhifei saw this scene with a touch of ridicule on his face. In his opinion, it was the first time for an academician of a National Academy of Sciences to test hand washing water with TDS detection pen. It must be laughed at when it came out. Moreover, after Lu Chong washed his hands, the color of the water looked a little black, and the TDS value must burst!

At this time, everyone focused on Shi Chenggong and wanted to know what the TDS value was like?

Li Wenxiu's beautiful eyes full of spirit show a deep curiosity. Like Shi Chenggong, although it is the first time to meet Lu Chong, she has an inexplicable sense of trust in Lu Chong.

However, like Shi Chenggong, she is a rational person, not a greedy person, so they have a minimum IQ. By inviting them to do experiments for Lu Chong by the head of state, she can feel that Lu Chong is extraordinary, unlike Su Zhifei. Lu Chong is full of envy and jealousy for Lu Chong because he has energy crystals that are not sold for 10 billion yuan. That envy makes him lose his rationality and minimum intelligence Judgment, so he makes mistakes again and again!

Although Li Wenxiu has seen many big scenes, she has seen such strange things for the first time in her life, so she looks at Lu Chong with a mysterious smile and is full of interest in what will happen!

Su Zhifei's face was full of ridicule. During his study in Britain, he had seen too many vows. Of course, he believed in Science in books. Therefore, in his opinion, Lu Chong was clearly playing tricks on them, and even playing with them. However, he didn't understand why Lu Chong played an academician.

Su Zhifei thought, wait a minute, if the TDS value is very high, that guy will be very embarrassed, which means that guy is very unsanitary. Ha ha, that guy must be ashamed. When he thought of this, a thick sense of banter and playfulness appeared on his face!

When Li Wenxiu and Su Zhifei stared at themselves, Lu Chong always looked indifferent and looked at Shi Chenggong doing the test.

After the value of Shi Chenggong is stable, press the hold button marked below, take out the TDS pen to read the value, and wipe the TDS pen probe with dry paper after the test.

When people all turned their attention to Shi Chenggong, Shi Chenggong was puzzled when he saw the value displayed on the TDS detector, as if he had encountered a very strange thing.

When Su Zhifei saw Shi Chenggong's face, his face became more playful: "academician, what's the result? I'm afraid the TDS value of this hand sanitizer should exceed 500!"

The indication value of TDS detector is 500, that is, 500 mg impurities are contained in each liter, which is quite dirty, at least not drinkable!