尘埃落定

尘 = 土 + 小 : Charlie Chaplin (ch) enters the encampment ((e)n2) as a vicious dust storm (尘) is blowing. He breathes so much dirt (土) that he thinks the dirt got even into his heart (小).

埃 = 土 + 矣 : Albert Einstein (Ø) is taking part in the finals of a TV show (矣) in front of the airplane (ai1). He is dividing pieces of dirt (土) again and again until only dust (埃) remains. He wants to prove that he cannot divide it further once the particles have reached the diameter of one Ångström (埃).

埃 = 土 + 矣 : Albert Einstein (Ø) is taking part in the finals of a TV show (矣) in front of the airplane (ai1). He is dividing pieces of dirt (土) again and again until only dust (埃) remains. He wants to prove that he cannot divide it further once the particles have reached the diameter of one Ångström (埃).

落 = 艹 + 洛 : Lenny Lemur tried to grow some artificial lawn in the observatory's bathroom, but to no avail. He even put up a star for the light and provided bottled water, but the artificial lawn didn't grow. To make matters worse, the star is about to fall into the bathroom's well.

定 = 宀 + 下 + 人 : "to fix": duct tape. Somebody wanted to tease Dorothy Gale and taped a graduation cap to her head. Neanderthal Man tries to help her by levering the cap off with a ladder in the engine's bathroom.