capital city of a country / big / algebraic term for a large number (old) / artificial mound (old)
京
=
亠
+
口
+
小
:
Mnemonic symbol: Beijing is China's capital, and a characteristic landmark of Beijing is the building called the underpants. Joan of Arc (ji) is trying out Beijing's large underpants (京) in front of the engine ((e)ng1). The underpants have a nice pattern consisting of paintings of berets (亠), mandarins (口) and daisies (小).
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).
胡
=
古
+
月
:
Helga Horse (hu) visits the old and wise moon (月) in the space station's kitchen (Ø2). She wants to join his cloister (古), but the moon rejects and says that first she has to get a very long Confucius style mustache (胡) such as his own.