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Cosmic Inflation: Scale-Factor Expansion & e-Folds (2D)

2D cosmic-inflation lab: a real de Sitter scale factor a(t)=a0·e^Ht driving a grid of comoving points, a live e-folds counter N=H·Δt, and a log-scale scale-factor-vs-time chart so you can watch exponential expansion and physical separation grow in real time.

Space & Astronomy2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion drives the same de Sitter exponential-expansion math as the 3D version through a plain canvas view built for reading the physics rather than orbiting a scene: a live e-folds counter tracks N=H·t against the textbook N≥60 threshold used to solve the horizon and flatness problems, a marked pair of comoving points visibly separates as d(t)=d0·a(t), and a log-scale scale-factor-vs-time chart shows the straight-line signature of exponential growth bending into the slower, decelerating post-inflation regime.

⚙ Under the hood

2D cosmic-inflation lab with a real de Sitter scale factor a(t)=a0·e^Ht, a live e-folds counter N=H·Δt, and a log-scale scale-factor-vs-time chart showing exponential expansion and physical separation growing in real time.

cosmic inflationscale factore-foldshubble parameterde sitter expansionearly universe

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