二氧雜芑

二 = 一 : Mnemonic symbol: a capacitor, because the two strokes remind me of the symbol in electrical drawings. Albert Einstein (Ø) is experimenting with a capacitor (二) in the space station's bathroom (Ø4). He finds that it's uncomfortable to discharge a capacitor using two flutes (一).

氧 = 气 + 羊 : Maud Younger (y) gave the sheep (羊) a balloon (气) inside of the anglepod (ang3), but unfortunately it doesn't float because it is filled with oxygen (氧).

杂 = 九 + 朩 : Zorro (z) discovers that a sewage pipe (朩) broke just inside the ashram's kitchen (a2), and a weird mix (杂) of different smells comes out. It is in fact a cloud nine (九) which involves at least nine mixed smells.