射影几何学

射 = 寸 + 身 : Sherlock Holmes (sh) is ready for takeoff in the elevator's bathroom (e4) and stands in front of a rocket on a launch pad (mnemonic symbol for 射). As there are many journalists, Sherlock prepared to be extra fancy and wears a tight body suit (身). He winks to the photographers and makes the thumbs up (寸) sign.

影 = 彡 + 景 : Maud Younger (y) wants to watch a movie (影) inside of the engine ((e)ng3), but only men are allowed. She doesn't bounce back but instead, being a suffragist, puts on a long, fake Santa beard (彡). She enters to find that the whole movie consists of a still frame of a bonsai tree, a landscape in a pot. Back in the days, the script writers were not so experienced it seems.

Joan of Arc (ji) is sitting at a small table (几) in front of the space station (Ø1) and reading her Bible, waiting for a message from God.

何 = 亻 + 可 : Mnemonic symbol (from "carry"): baby sling

何 = 亻 + 可 : In the elevator's kitchen, Rosa Luxemburg picks up the crying baby Hamlet from his bed of nails, puts him in his baby sling and tries to calm him down.

学 = 小 + 冖 + 子 : Xu Xian wants to study scienceology and learn more about daisies. Just inside the elevator's kitchen, he put some daisies into a prize cup and covered them with a cooking top. He wants to study the growth rate of the daisies depending on the pH of the water in the prize cup.