Angelica stretched out his finger and pointed to the wire pulled out of the small house, which was a metal wire wrapped in plastic skin, "Oh, this is the wire, in order to prevent the current from leaking and hurting innocent people, so it is necessary to wrap a layer of insulating material on the outside, and the current will spread along the wire inside, which can spread far away."

The dough grinder I showed you just now converts electrical energy back into kinetic energy. ”

"Ah, I see." Long Xilin was pleasantly surprised: "In other words, between electrical energy and kinetic energy, they can be converted into each other. ”

Angelica nodded: "Under certain conditions, they can be converted to each other." ”

Long Xilin groaned: "Dangdang, I think, this is a very profound knowledge, can you tell me more carefully?" ”

"Absolutely."

Angelica readily agreed.

In the following days, Long Xilin was fascinated by the physics knowledge taught by Angelica, and he studied those physical problems and did experiments every day.

Angelica saw that Long Xilin was so studious, so he exchanged physical chemistry books from junior high school to high school from the system to show him.

Long Xilin has excellent talents, from junior high school to high school physics, he has read all of them in a few days, and he is particularly interested in the knowledge of electricity.

Therefore, Angelica exchanged some electricity-related books for him to read.

Long Xilin looked at it seriously, Angelica didn't bother him, she went outside on weekdays, bought a storefront, and opened a cake shop.

An electric oven is needed to bake bread and biscuits, so Angelica simply set up a bakery in the Garden of Dreams, and then baked it here and sent it to the cake shop to sell.

Whether it's cakes, bread, or biscuits, the taste is unprecedented, so on the first day of opening, the cake shop is packed.

Every day that followed, the goods were sold out early, and the customers who came later could not buy them.

On this day, when Angelica came back from outside, he happened to see Long Xilin hurrying outside from the inside.

She was slightly curious, in the past few days, Long Xilin has been staying in the dream of his hometown every day to study science and technology, and it is rare to go out.

It is even more unusual to run so quickly like today.

Angelica greeted him and asked, "What happened?" ”

"The battle in Anjiang City has changed, I have to go over in person......"

Long Xilin said, and glanced at Angelica deeply: "You stay here obediently and wait for me to come back, do you know?" ”

Angelica nodded: "Then you bring that gun team." ”

Long Xilin bowed slightly: "Okay, near the Dream Garden, I have sent someone to protect it closely, if there is anything, you can come here to hide, in addition, I have left someone for you." ”

As he spoke, Long Xilin clapped his hands lightly, and a middle-aged man in his thirties walked out from behind the bushes, he was dressed in black, his facial features were resolute, and his eyes were bright, and he had practiced at a glance.

"Dai Jiang, when I'm away, you have to protect your wife, you know?"

"Yes, young master."

Angelica reached out and grabbed his wrist, saw the bell on his wrist, and admonished, "Contact me if you have something." ”

"Hmm."

Long Xilin suddenly shook her shoulders and whispered: "The battlefield is changeable, you stay here, no matter what kind of news you hear, don't worry about it, you know?" ”

Angelica nodded.

Long Xilin looked at her, suddenly lowered his head, and kissed her on the forehead, then let go of her and turned to leave.