雌三醇

雌 = 此 + 隹 : The King of Chu (c) is wooing a female (雌) sparrow (隹) just inside the space station's entrance (Ø2). He knows that women like shoes, so he brought a pair of big and expensive boots (此), unfortunately much too large for the small female (雌) sparrow (隹).

三 = 一 + 二 : Mnemonic symbol: a Cartesian coordinate system with three (三) axes.

Socrates (s-) is performing in front of the anthill (-an1). He created an electrical flute by attaching a large capacitor (二) to the flute (一), so that he can get the attention of all the ants. Moreover, he's balancing on a Cartesian coordinate system (三). Unfortunately, only three (三) ants stop to watch the performance.