But it could be that, well, imagine that my vector field accidentally goes in the opposite direction then this part of the curve, while things are flowing to the left, contributes negatively to flux.

China has a long history of gray-market financing flowing from small, informal and unregulated groups, to sectors not well covered by Banks.

But even if the test fails, U.S. officials said the company could use the same cap to capture all of the oil flowing from the well by the end of the month.