An educational website that explains the laws governing the universe β from the fall of an apple to the dance of galaxies β with clear explanations, equations, and interactive simulations you can play with.
Motion, forces, energy, momentum, and the laws that govern everyday objects.
Start with Mechanics βHeat, work, entropy, and the arrow of time that shapes stars and engines.
Explore Thermodynamics βElectricity, magnetism, light, and Maxwell's elegant unification.
Dive into E&M βSound, light, interference, and resonance that connect the micro and macro.
Ride the Waves βThe strange rules of the subatomic world: wavefunctions, uncertainty, and tunneling.
Enter the Quantum βSpacetime, the speed of light, and how motion bends time and space.
Embrace Relativity βAtoms, nuclei, the Standard Model, and the deep structure of matter.
Discover More βEvent horizons, tidal forces, Hawking radiation, and the evidence for them.
Enter the Horizon βLight cones, the twin paradox, Penrose diagrams, and why the universe forbids it.
Warp Forward βBuilt as a learning resource. No login, no ads β just curiosity-driven physics. Β© 2026.
Real data from free, no-auth public APIs β refreshed each time you load this page.
Contacting NASA's Astronomy Picture of the Day serviceβ¦
Contacting the ISS position serviceβ¦