When the two layers' polarity faces the same direction, electrons flow readily through the barrier, and the chip reads a one.

FORBES: Total Recall

In the design of the well, the company apparently chose a riskier option among two possibilities to provide a barrier to the flow of gas in space surrounding steel tubes in the well, documents and internal e-mails show.

FORBES: Obama-Picked Investigator Says No Safety Shortcuts In Blowout Well. Really?