Open Access Opinion

A Simple Equation Results in Decades of Technical Fun

Ronald C Lasky*

Dartmouth College, USA

Corresponding Author

Received Date: June 26, 2019;  Published Date: June 28, 2019


Decades ago, when I was getting my PhD, I needed to calculate the density of a mixture of two polymers. I was tempted to use equation 1 below: ρt = xρ1 + yρ2 equation 1 Where x is the mass fraction of polymer (or metal for a metal alloy), y the mass fraction of polymer 2, rho the respective densities and rho the total polymer or alloy density.

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