fork in road / bifurcation / branch in road, river, mountain range etc / to branch off / to turn off / to diverge / to stray (from the path) / to change the subject / to interrupt / to stagger (times)
岔
=
分
+
山
:
Charlie Chaplin (ch) is conducting a scientific investigation in the ashram's bathroom (a4) in which he sticks a fork (山) into a toilet at different positions and angles and measures with a stopwatch (分) how long it takes a bifurcation (岔) to appear once he flushes the toilet.