Quantum Horizon vs Antipode

Quantum Horizon is a cinematic observatory for relativity and quantum physics — built so you can feel spacetime, not only read about it. Fall toward a black hole and watch minutes become years. Drag masses across the Milky Way and catch Einstein rings. Prepare a wave function, then collapse it. Entangle two particles and run a real Bell test. Leave near light speed and return younger than the world that waited. WHERE SPACETIME BENDS • Black Hole Time Warp — Schwarzschild gravitational time dilation outside a horizon. Slide closer and watch Earth race ahead while your clock crawls. • Lensing Observatory — Interactive gravitational lensing across a Milky Way sky. Bend light, hunt rings, add companions that can fall into the well. • Relativistic Journey — Special relativity with live γ. Feel the twin paradox as two ages, not a textbook footnote. • You vs Others — Two ages. One voyage. See who aged less after a near-light trip. QUANTUM MEASUREMENT • Wave Function Collapse — Write two futures, set amplitudes, measure with the Born rule. One path becomes real. • Branching Histories — Parallel stories, optional relativistic aging, one collapse that chooses a history. • Entanglement Lab — Bell states (Φ± / Ψ±), Alice & Bob detector angles, running correlations, and a CHSH test that can beat the classical limit • Live quantum link — collapse and entanglement sampling can reach a real-time quantum device — so the decisive moment is tied to genuine quantum hardware. MADE TO FEEL REAL Textbook formulas power the tools: Lorentz γ, Schwarzschild dilation, thin-lens geometry, Born-rule probabilities, and Bell correlators from quantum mechanics. Beautiful, playable, and built for curious minds.

Ever wondered where you'd come out if you dug straight down, through the center of the Earth? Your antipode is the point on the globe exactly opposite to where you stand. Antipode pins your location, finds that point, and takes you there with a cinematic "dig through the Earth" navigation — through the crust, mantle, outer core and inner core, a 42-minute free fall to the other side of the world. INCLUDED • One tap to locate you and compute your antipode • Cinematic cross-section navigation through all four layers • Real physics: the gravity-tunnel trip takes ~42 min, peaking at ~28,440 km/h at the core • Home screen widget — your antipode, one glance away • Share a poster of your journey in one tap ANTIPODE PRO (one-time purchase) • Explore any place: search or long-press the map to find any location's antipode • Travel guide to the other side: flight distance, best season to go, nearby airports and towns • History and favorites: every antipode you've explored, saved • Four poster templates: Classic, Midnight, Magma, Minimal Only ~4% of Earth's land has land directly opposite — most people land in the ocean. Where's yours?