Chapter 1861 (1/2)

"Haha, grandma, you heard wrong. It's not with eyes, it's with glasses!" Sun Yingying explained. "Now I tell you, you don't understand what's going on, but you'll understand it when I bring it. It's a very simple truth."

Even if sun Yingying explained the optical principle to the old lady of the town, the old lady didn't understand it!

Others have good eyesight, no presbyopia, no myopia, and even no astigmatism.

Thinking of making gifts for his father and correcting presbyopia for his grandmother, sun Yingying wrote a letter to Bai Yixiu asking him how his glasses were made.

Before, she gave Bai Yixiu all the information about the production of some glasses and the division of various degrees.

Sun Yingying was not good at these problems in science and engineering, so he left them to Bai Yixiu.

I have to say that Bai Yixiu is a talent in science and engineering.

Now the perfume toothpaste and nail polish are all made by Bai Yi Shu, which is very powerful, which makes Sun Yingying admire it very much.

Bai Yixiu replied immediately after receiving sun Yingying's letter and invited sun Yingying to go to the workshop to see the production of glasses.

Sun Yingying readily promised to follow Bai Yixiu to the workshop on the outskirts of the city on the agreed date.

"Bai Yixiu, I found that you have many workshops. Did you spend money on them?" Sun Yingying asked curiously and looked around at the large workshops.