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Harnessing Cellular Machines for Humans

The cell is loaded with molecular machines, so why reinvent the wheel?  or the whole truck?  Martin G. L. van den Heuvel and Cees Dekker wrote in Science that engineers ought to put the existing technology to work.1  The biological cell is equipped with a variety of molecular machines that perform complex mechanical tasks such […]

Sunshine Is for Health

51; The old wisdom: stay out of the sun.  The new wisdom: your life could depend on getting sunshine: about 10-15 minutes of exposure three times a week.     Science Daily reported that Vitamin D, produced in the skin by exposure to sunlight, provides more health to the body than previously thought.  Health professionals […]

Cellular Machines Coming to Light

51; As imaging techniques improve, cells are yielding up their secrets.  Scientists are getting closer to watching the processes in cellular factories in real time. Dynein:  PhysOrg reported, “Biologists capture cell’s elusive ‘motor’ on videotape, solving the mystery of its deployment.”  The article began, “Their experiments can be likened to restoring never-before-seen footage to a […]

Is Dark Matter Going Out of Style?

Dark matter has been a staple in cosmological theories for decades.  One of the initial reasons was that galaxy rotation curves could not be explained without it.  Another was that galaxy clusters, to be held together over long ages, needed more “stuff” to bind them.  Finally, Big Bang cosmologists invoke copious amounts of dark matter […]
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