The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. ... Aqueducts moved water through gravity alone, along a slight overall downward gradient within conduits of stone, brick, or concrete; the steeper the gradient, the faster the flow.
Not at all! Chinese drawings are often different then ones you will see in rome and so on :) Drawings are diverse depending on the culture they are from.
