"Yan Gege is really amazing. When I grow up, I want to be like him. So, sister, why does solar energy turn into the moon?"
"...See this? Here are the solar panels, monocrystalline silicon solar cells. This is the core; it converts solar radiation into electrical energy and stores it. Besides these, you also need a special controller. This is the switch; we turn it on when we need it and turn it off when we don't."
"I know. Like now, we need it, so we turn it on, and it controls the moonlight. When we go to sleep later, we turn it off, and the moon goes out."
"...That's right. Xiao Ran's ability to understand has improved again. Tonight's braised pork wasn't eaten in vain."
The little one, praised, was both excited and blushing.
"But how is the little moon made? Is this our home window glass?"
