零曲率

零 = 令 + 雨 : Just inside the engine's kitchen ((e)ng2) it is raining (雨) heavily. Li Qingzhao (li) wants to flee the rain and to enter engine, but she has no pocket money (零钱) anymore. Instead, she shows her very special name tag (令) in the hope of being let in, but unfortunately it is not recognized.

曲 = 囗 + 卄 : Mnemonic symbol: a harp. Cupid (qu) is playing a harp (曲) in the space station's living room (Ø3). He's sitting on a big enclosure (囗), playing the harp (曲) and wielding a double axe (卄) at the same time.

率 = 冫 + 十 + 玄 : Sheldon Shrimp (shu) is surprised by a stream of lava (玄) rushing into the airplane's bathroom (ai4). He acts quickly (率) and jumps on a huge cross (十) to save himself. Then he continues to lead (率) the stream of lava around the cross by placing popsicles (冫) on the floor in just the right way, so that the lava passes his cross without melting it. He notices that the heat flow to either side of the cross corresponds to the golden ratio (率).