A thermodynamic limit on brain size

May 26, 2009 | Source: The physics arXiv blog

The thermodynamics of heat balance does not restrict brain size, which could be heavier than 5 kg, leaving plenty of growing room for humans, which have brains of only 1.5 kilograms on average, calculates Jan Karbowski at the Sloan-Swartz Center for Theoretical Neurobiology at the California Institute of Technology.