Statics
How forces balance on things that don't move — vectors, free-body diagrams, trusses, and the internal loads holding it all together.
Force VectorsEquilibrium of a ParticleFree-Body Diagrams+13 more
Thermodynamics
Energy, heat, and the laws that decide which processes are possible at all.
Basic Concepts and DefinitionsProperties of Pure SubstancesIdeal and Real Gases+13 more
Fluid Mechanics
Pressure, flow and drag — the mechanics of anything that can't hold its own shape.
Fluid PropertiesPressure and Fluid StaticsHydrostatic Forces on Surfaces+13 more