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The Second Law and Biophysics

The Second Law and Biophysics

This video was recorded at MIT World Series: Meeting the Entropy Challenge. "Biology is messy," says Kenneth Dill, and it's "heavily about entropy." Just look at how biological systems repeat entropy at every possible turn: a parent cell making two daughter cells, sending one DNA molecule to each; and the process of biochemical reactions, with water getting stripped off the molecules. Dill is convinced that the "language of biology in the future will be nonequilibrium statistical mechanics." He's engaged in experiments that explore how dynamical laws apply to very small biological systems, such as those inside cells. Traditional macro-scale dynamics, explains Dill, have laws where concentration gradients or temperature gradients drive flux. But inside cells, there are elements that... Show More


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