Lillehei solved that problem with cross-circulation, in which a donor, linked to the patient by plastic hose and a simple pump, acted as a living heart-lung machine.
FORBES: Brave heart
Those primeval life-forms use a simple type of cellular pump that pushes sodium out of the cell while pulling positively charged protons in.
MSN: Theorists pumped about origin of life idea - Technology & science - Science - LiveScience | NBC News
"In simple terms, it won't fit through the pump hole, " says Iannini.
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At first I thought this was cool, until I watched the first pot and remembered how simple a coffee maker is: a heating coil and a pump.
FORBES: Hands-On: Bodum's 'Pour-Over' Coffee Maker
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