Presets
Classic Chaos
θ₁=120° θ₂=−10°
Near Vertical
Both bobs near top
Lazy Swing
Small angles — regular
High Energy
θ₁=170° θ₂=−170°
Windmill
Kicked into rotation
Horizontal
First arm 90°
Symmetric
θ₁=θ₂=60°
Initial Angles
θ₁
120°
θ₂
−10°
Mass ratio m₂/m₁
1.00
Length ratio l₂/l₁
1.00
Gravity
9.8
Speed
1.0×
Damping
0.000
Trail length
6000
Trail Color
Show chaos twins
Trace first bob
↺ Reset
⏸ Pause
✕ Clear trail
Δθ₁ = ±0.001 rad — watch chaos unfold
θ₁:
—
θ₂:
—
ω₁:
—
ω₂:
—
KE:
—
PE:
—
E:
—
Click canvas
(paused) — set θ₁
Space
— pause/play
R
— reset