李
=
子
+
木
:
In the space station, Li Qingzhao shakes a Christmas tree which is decorated with eggs. The eggs fly off and as they break open, plums fly out of them.
亨
=
亠
+
口
+
了
:
Mnemonic symbol: American scientist Joseph Henry.
Before Henry (亨) invented inductance he used to hang out with Hamlet (h) a lot in front of the engine ((e)ng1). One day he observed Hamlet shifting a mandarin (口) from a price cup (了) to a beret (亠) and vice versa, which gave him the idea of putting an iron core into an electromagnet.