Not all of these benefits would flow from removing head-office duplication and overlapping operations such as mines and the railways linking them to ports.

ECONOMIST: BHP Billiton and Rio Tinto

Wells in shale plays have to undergo a process known as fracturing to boost the porosity of the rock and to make oil and gas flow to the well head.

FORBES: Baker Hughes Ramps Up Oil Fracking On Low Natural Gas Prices

That general sense of holiday cheer that makes the money flow just as it does when we head out for some Christmas shopping.

FORBES: All I Want for Christmas Is A Santa Claus Rally

With its head start, Cheniere expects to flow gas by the end of 2015, beginning annual exports of up to 800 bcf per year for 20 years.

FORBES: LNG Export Economics: A Look At Frontrunner Cheniere

Power stations are built on rivers with a consistent and steady flow, either natural or regulated by a reservoir at the head of the facility.

FORBES: Hydroelectric Revolution: A River Runs Through It

We learn of gunboats bound for America that change direction to head toward Asia and of international trade being affected by the simultaneous disruption of the flow of cotton from the South and the flow of tea from China.

WSJ: Book Review: Autumn in the Heavenly Kingdom