Digging the foundation the old fashion way.

My friend Jack is building a new house. He is putting the new house in back of his old house and then he is going to remove the old house. This is a picture of where the new house is going to go. All of the black tar paper funnels mark where the dynamite will go. Jack is making a 9 foot deep hole in a rock ledge.
If things go badly, he may be removing the old house sooner than he had planned.