Researchers decrypt transport dynamics of porous media
What laws govern how chemicals pass through filters? How do droplets of oil move through layers of stone? How do blood cells travel through a living organism? A team of researchers led by the Technical University of Munich (TUM) and the Max Planck Institute for Dynamics and Self-Organization (MPI-DS) has discovered how pore space geometry impacts transport of substances through fluids.
Concentration takes energy. As you read this article, the blood vessels in your brain expand and the speed of the blood stream slows so that your ’reading neurons’ receive more glucose and oxygen molecules from the blood stream. "This all happens without any action on our part. ...