BLACK HOLE SIMULATOR & SPAGHETTIFICATION METER
Explore spacetime singularities where gravity is so intense that nothing—not even light—can escape. Simulate event horizons and calculate tidal gravitational forces.
Spaghettification & Tidal Force Calculator
Head-to-toe gravitational gradient pulling a 1.8-meter human body.
The Paradox of Falling into a Black Hole
Karl Schwarzschild solved Einstein's field equations in 1916, proving that any mass compressed within its critical radius ($r_s = \frac{2GM}{c^2}$) collapses into a gravitational singularity where escape velocity exceeds light itself.
Counter-intuitively, stellar-mass black holes have terrifying tidal forces: because their radius is tiny (~30 km), the gravitational gradient between your head and feet is millions of Gs outside the event horizon—ripping you into a strand of subatomic pasta long before you enter. But for supermassive black holes (millions or billions of Suns), the horizon is so vastly vast that the tidal gradient is gentler than Earth's gravity! You could cross the horizon completely unharmed... with zero possibility of ever escaping back to tell the tale.