The days of eating and drinking: The Biography of the Silly Concubine

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"I don't go to class very often. It's a rare opportunity. You have to listen carefully. Hee hee!~" Bi He saw that Luo Tuo let himself sway like this, and returned to his poker face. It seemed that he had to speak something practical, "Luo Tuo Brother Tuo, I really know a little bit of effect. For example, it can be used to cure diseases and save people, or it can also be used in daily life. For example, we smash eggshells and put them into thin cloth bags. Put it in a basin and soak it in hot water for 5 minutes... No, take it out after a quarter of an hour, and use this water to wash the clothes, and it will be extraordinarily white. This method is good, I have tried it."

ah!It's obvious, I only tried it in modern times, she sneaked a glance at Luo Tuo, it seemed that she didn't really listen to it, it's okay.I couldn't help but continue to say, "Egg shells are mainly composed of calcium carbonate and a little sodium carbonate...uh..."

She paused again.About these carbonates, Luo Tuo must have been confused.

It is really difficult to take a good class. The generation gap in language is too big, and it is impossible to understand. [

really--

"What is calcium carbonate?"

"It's an inorganic compound...Forget it, this kind of thing is too scientific, you can't understand it, anyway, what is the shell of an egg made of?"

"not understand."

"For example, it's like a stone. If you put such a big piece in your palm and squeeze it with your inner strength, it will shatter and become many, small, like sand. That is also a stone. But before that, it was a big piece, that is to say, that big piece is made up of many small things."

When Luo Tuo heard this, he nodded, "It makes sense."

"It makes sense, haha! Of course it makes sense, what I said is the truth. It is easy to understand, and those who don't understand are basically idiots."

"Miss, what is the relationship between stones and egg shells?"

"ah??!……"

Fall down! ! ~The idiot is the inside of the car...