Home▸Special Relativity▸Relative Simultaneity (2D)

⏱️ Relative Simultaneity (2D)

Interactive 2D Minkowski spacetime diagram: drag two events, adjust relative velocity v/c, and watch the real Lorentz transformation show how event order can flip between reference frame S and S'.

Special Relativity2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Drag two events on an interactive 2D Minkowski spacetime diagram and adjust the relative velocity v/c to watch the real Lorentz transformation in action. See how event order can flip between reference frame S and the boosted frame S' whenever the two events are spacelike separated.

special relativityMinkowski diagramLorentz transformationsimultaneityspacetimephysics

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install