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After 100 years, automobiles still need engine oil, transmission fluid, brake fluid, antifreeze, power-steering fluid, and so on. Wouldn't it be great if just a single multipurpose fluid could be circulated from a central reservoir? Each part would use only the needed properties of the fluid, exclude detrimental properties, and then send it back. The new system’s worldwide impact would ensure a huge market--and academic honors--for the clever developers. This lucrative breakthrough, however, would not be pioneering. Just such a brilliant integration of fluid properties to the diverse needs of the physical body has already been achieved in human blood--in...

Sept 8, 2009 — Visualize a cartoon of Charles Darwin as Hippocrates.  It accompanies a book review in Science by Peter T. Ellison (Harvard).1  Ellison realizes that the mass of material doctors need to master is formidable, but thinks that “Evolutionary biology, however, is no longer an expendable topic in medical education...”

Unlike any man-made computer, the brain is made of living cells that must constantly change as we acquire new skills and information. It appears that the physical architecture of the brain itself changes in response to our experiences. Such a marvelous design makes it possible for us to grow and adapt to our changing environment...