Cooler still is the method the arm deals with waste heat and steam: just like a regular arm, it's allowed to filter up through a permeable skin, producing "sweat" -- the same amount of perspiration you'd get on a warm summer day, according to the team.

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In a lot of wells I saw that the zone was taking drilling mud, soaking it up and leaving a layer of mud cake across a permeable interval of the wellbore.

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Mr. PILLER: Only in recent years did they figure out how to get the gas out of the shale, which is a less permeable rock.

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The algae in the device lives in water surrounded by a gas-permeable membrane and helped by light from and LED.

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The liquid had re-condensed on the tools because of a new type of semi-permeable wrap put around the trays that did not allow the vapour to escape.

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Being permeable or effective in listening in the right contexts is a critical success factor, especially during times of need or pivot.

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But when a person is in shock, their organ walls become more permeable, letting harmful substances in and out more indiscriminately, researchers say.

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"The idea is to make it permeable by people, " Govan says, even if those people can peer in without buying a ticket.

WSJ: Michael Govan, the Man Behind LACMA | WSJ. Magazine May 2013