Chalmers is today organized according to the Principle
Mechanics Department: Lagrange's equations
Physics Dept: Schrödinger's equation
Theoretical Physics Dept: Einsteins's equation
Solid Mechanics Dept: Navier's elasticity equations
Fluid/Gas Dynamics Dept: Navier-Stokes/Euler equations
Electromagnetics Dept: Maxwell's equations
Hydraulics Dept: Wave equation
Chemical Reaction Eng. Dept: Convection-diffusion-reaction equation
Physical Chemistry Dept: Kohn-Sham equation
Industrial Economy Dept: Black-Schole's
Energy Dept: Heat equation
Structural Mechanics Dept: Beam and Plate equation
Nuclear Energy Dept: Neutron transport equation
Gas Kinetics Dept: Boltzmann's equation
The principle illustrates the importance and traditional difficulty of solving differential equations.