Brownian Motion (2D)
This interactive simulator explores Brownian Motion in Thermodynamics. Heavy particle with random kicks and friction; trail and running ⟨r²⟩ vs time. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Thermodynamics.
Key terms
- brownian
- motion
- brownian motion
- thermodynamics
How it works
Brownian motion links microscopic collisions to macroscopic diffusion. Einstein’s 1905 analysis related D to molecular kicks. This page uses a simple Langevin-style model in a disk, not full molecular dynamics.
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Stirling Cycle
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Wet Steam (T–s sketch)
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Diesel Cycle (PV)
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Maxwell’s Demon (Toy)
2D billiards + gate: fast |v| crosses; ⟨|v|⟩ left/right + Landauer note.