Research Bond graphs – a technique developed for handling linear systems (mechanical, electrical…) under a single framework. https://en.wikipedia.org/wiki/Bond_graph

The dynamics of the voltage across a nerve membrane are well defined by a set of three coupled non-linear equations.  MATLAB (or another tool) can be used to model these equations and accurately predict the dynamics of a nerve firing.

Make an animation (either MATLAB or web-based) of the inner ear example from class.  This involved some simulation and some relatively simple graphics programming.  You could also update and expand this web page (http://www.swarthmore.edu/NatSci/echeeve1/Ref/InEar/InnerEar.html) to include the animation.