While money often works its way to the upper classes, it very rarely flows back the other way.

FORBES: Average America vs the One Percent

Despite a slow quarter in terms of revenues, IBM has shown a significant increase in free cash flows that we expect it will invest back into highly profitable, high margin businesses such as Big Data Analytics and Cloud Services.

FORBES: Big Blue Heads To $230 After Flexing Its Earnings Muscles

They worry that when frack water flows back out of the well that it needs to be treated and processed.

FORBES: Inside The Mind Of Rex Tillerson

When it comes to commercial real estate investment flows China still takes a back seat in Asia to Japan and Australia, whose markets have better transparency, more experienced investors and deeper inventory.

FORBES: China Is Poised To Top Japan, Australia Among Int'l Commercial Property Investors In Asia

While this may seem theoretically sensible, in practice it leads to buying back more shares when the market value has increased significantly in response to stronger cash flows.

WSJ: The Pros and Cons of Stock Buybacks

The oil, which glows purplish when hot, flows to an adjacent power plant, where it boils water into steam that runs a turbine, and is pumped back to do it all over again.

FORBES: Magazine Article