Listening to his father's words, Qiao Bao began to count the little balls seriously.

“1，2，3… There are 82 of them! ”

Qiao Bao exclaimed in surprise.

Qiao's mother looked carefully at the support frame in the gift box, and said to Qiao Bao and Qiao's father: "It's better to put it away now, if you lose it, you won't be able to put it up when you go home." ”

"Okay, let's go back and assemble it now."

After the sports meeting, Qiao Bao's family returned home and began to assemble the model of Saturn, and Qiao's mother projected the introduction of Saturn on the computer onto the wall of the living room.

Suddenly, the whole living room became the world of Saturn, the giant Saturn, and its rings, as well as many moons.

"Huh? Mom! How is Saturn elliptical? Shouldn't the planet be round!? ”

Qiao Bao picked up the model of Saturn in disbelief and looked at it carefully, and sure enough, the model was also oval, and he didn't find it at all just now.

"Because Saturn's equatorial radius is not the same as its polar radius, this phenomenon is also known as the ellipsoidal effect."

Pink Moon suddenly appeared on the wall of the projection, and the frightened Qiao Bao jumped up suddenly, "Wow! Pink Moon, you freak out the hell about me! Mom and Dad! Come and see! This is Pink Month! It's a good friend of mine! ”

"It turns out that this is a good friend who goes to various planets with you!"

Joe's dad and Joe's mom also sat down and helped Joe Po assemble the Saturn model together.

"Yes!"

Qiao Bao nodded and looked at Fan Fanyue, "Why are you on the wall Fan Yue!" Hurry up and assemble a model of Saturn with me! ”

Pink Moon shook her head, "I can't get down, and I don't know why I can only stay on the wall." Assemble it, I say listen. ”

"Okay."

Qiao Bao lowered his head and carefully assembled the model of Saturn, while listening to Pink Pink Moon introduce Saturn.

"Saturn is a gas giant made up mostly of hydrogen and a small amount of helium. Saturn's rings, on the other hand, are composed of seven large rings, which are not monolithic structures, and each ring is composed of hundreds or thousands of thin rings squeezed together.

In the gaps between the rings, there are many thin rings that we can't see now, and under the refraction of the sun's light, they shine with colorful light, so Saturn is also called the beauty of the stars. ”

Pink Moon looked at Qiao Bao from the wall, just as Qiao's mother had assembled the rings of Saturn, "No wonder these rings are like rainbows, and the colors in them, I thought the merchant deliberately made them like this." ”

"Qiao Bao and Dad have installed all the satellites, so tired!"

Qiao Bao moved his muscles and bones, got up and put the rings of Saturn in the corresponding position with Qiao's mother.

"Wow! It's really a beauty in the stars! When this Saturn ring is installed, it looks like a straw hat! ”

Qiao Bao touched the halo on the model, and drew the shape of a straw hat on his head.

"Look, there's a switch here, Dad, go get three batteries!"

Qiao's mother accidentally found that there was a slot for batteries at the bottom of the model, and Qiao's father immediately found the batteries and installed them.

"Qiao Bao, can you turn on the switch and take a look?"

Pink Moon also looked at Qiao Bao expectantly, Qiao Bao nodded and turned on the switch.

"Wow-"

Several people couldn't help but exclaim, only to see Qiao Bao turn on the switch, and the entire Saturn model emitted colorful light, even the halo was slowly rotating, and the satellite was also moving.

"It's so beautiful!"

Qiao Bao sat next to the model, staring blankly, distracted.