In this video there are five pool tables setup with a bunch of dominos on each table. The guy on the left starts the domino fall off by shooting a pool ball which hits another pool ball and finally the dominos. The dominos snake all over the table and while they fall they also send different pool balls falling into their pockets. Then it gets to the good part when the dominos fall towards the edge an a set of pool ques that go from the first table to the second table. A ball hit by the last domino rolls between the two tables and starts the dominos on the second table. Repeat for for 5 tables full of dominos total. Amazing.