井
=
二
+
丿
+
丨
:
Joan of Arc is digging a well inside engine. At first she was doing it by hand, but then she hooked up a capacitor to a banana and a dinosaur bone, which dig for her using the electrical energy.
矿
=
广
+
石
:
Karl Koala (ku) got a new job at the coal mine (矿) in the anglepod's bathroom (ang4). The entrance to the tunnel lies quite high, so every time Karl brings out another coal stone (石) he attaches it to a small parachute (广) and lets it fly down to the floor.