A Commentary on Thermodynamics

1 Nonlinear Thermoelasticity.- 2 Simplification and Approximation.- 1 Homogeneous and Dissipationless Thermoelasticity.- 2 Linearized Thermoelasticity.- Synopsis.- 3 Efficiency Within Nonlinear Thermoelasticity.- 4 Efficiency Within Homogeneous and Dissipationless Thermoelasticity.- 5 Efficiency Within Linearized Thermoelasticity.- 6 Versions of a Second Law of Thermodynamics.- 1 Nonlinear Thermoelasticity.- 2 Homogeneous and Dissipationless Thermoelasticity.- 3 Linearized Thermoelasticity.- 4 Nonstandard Linearized Thermoelasticity.- References.