Which was the long-term effect of the building of the transcontinental railroad

Soon-yi's house has a hexagonal window made up of six identical equilateral triangles as pictured below.

Jackson pollock described his art style in the following quote: “new needs need new techniques.… it seems to me that the modern painter cannot express this age, the airplane, the atom bomb, the radio, in the old forms of the renaissance or of any other past culture. each age finds its own technique.” what point is pollock making about the new styles of art?

During world war ii, which battle was the first significant us victory in the pacific?