Random Walk / Brownian Motion
Particles traced
Temperature (T)
2.0
Effective size (radius)
5
Boundary
Periodic (wrap)
Solid (reflect)
Steps / second
240
Trail fade
0.060
Play
Reset
Clear trails
How it maps to “physics” for teaching:
• Step size ∝ √T (higher T → faster diffusion)
• Size = particle radius (affects wall reflection and drawing)
• Periodic boundary wraps; solid boundary reflects
Paused
•
Periodic
T =
2.0
• size =
5
• N =
1