While other attempts are planned to block the hole, it is probable that oil will continue to pour from it for another couple of months, until relief wells are drilled to intersect and reduce the pressure in the currently flowing well and cut-off the leakage of perhaps 50 million barrels of oil contained there by the injection of concrete deep into the seabed.

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But that changed at the start of the year with money flowing in, so there is greater pressure for us to deploy cash balances and get invested.

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The material can heal within minutes of cuts through fast-forming hydrogen bonds, rivaling some of its peers, but also includes nanoscopic nickel particles that keep a current flowing and even respond to flexing or pressure.

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As water is flowing, the throttle is manipulated to control the water pressure being supplied to the discharges, this in turn affects the flow rate.

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Some newer engines also have flow-rate monitors for the discharges, these show the rate of water flowing in Gallons per Minute (GPM) instead of raw pressure.

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This pressure response has to be associated with the reservoir flowing hydrocarbons and again at this point kill operations should have been initiated by the BP engineers.

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