Concepts
Each concept is a single page: interactive visualization, sliders for the inputs, and the underlying equations rendered with their values substituted in. Pick one and start dragging.
Statics
Forces & moments in stationary structures.- StaticsCantilever Beam — End Load
A beam fixed at one end with a point load at the free end. The classic exhibit of why engineers fear length: deflection grows with the cube of the span.
- StaticsPratt Truss — Method of Joints, Force Flow Through 12 Pins
A six-panel Pratt truss with 12 pin joints and 21 bars. Click any joint to drop a load and watch every bar recolor as forces redistribute through the lattice.
Dynamics
Rigid bodies in motion. Free-body diagrams.Fluid Mechanics
Flow, pressure, and conservation laws.- Fluid MechanicsBernoulli's Equation — Venturi Tube
A pipe narrows in the middle. Conservation of mass says the fluid has to speed up; Bernoulli says the pressure has to fall. Watch both effects together.
- Fluid MechanicsPipe Flow — Reynolds Number & the Navier–Stokes Solution
Push fluid through a pipe — inertia fights viscosity. Their ratio (Reynolds number) sets whether you get smooth Hagen–Poiseuille flow or turbulence.
Thermodynamics
Energy, heat, and cycles.- ThermodynamicsCarnot Cycle — The Thermodynamic Speed Limit
Four reversible processes around a P–V loop. The Carnot cycle is the theoretical maximum efficiency any heat engine can achieve between two reservoirs.
- ThermodynamicsEvaporative Cooling — Latent Heat at Work
A few grams of water absorb a startling amount of heat by evaporating. That single trick powers sweating, swamp coolers, and steam off your tea.