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House & Home Physics

Door Closer (Damped Hinge)

critically damped: θ = θ₀(1+βt)e^(−βt)
Door Closer (Damped Hinge)

A good door closer is tuned to critical damping — the fastest swing shut that never overshoots or slams, from the same ODE as a car's suspension.

Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own Gif encoder (no GPU, no ffmpeg, no external packages).