Math Physics Chemistry Formula vs Relativity Simulator

Math, Physics & Chemistry Formulas is a clean, fully offline reference and calculator for students - no account, no internet needed. - 67 essential formulas across algebra, identities, geometry, sequences, logarithms, mechanics, energy, electricity, fluids, thermodynamics, moles, concentration and the ideal gas law - plus grade-12 topics: integrals, magnetism and nuclear physics. - Filter by grade and subject (Math, Physics, Chemistry) and search instantly. - Star your favorites for one-tap access. - Interactive solvers: quadratic equation, Ohm's law, circle area and circumference, moles (n = m/M), molarity and BMI - type the numbers, get the answer instantly. - Light and dark theme. Available in English, Vietnamese and Chinese. Perfect for middle and high-school revision. No ads block the content, everything works offline, and your favorites stay on your device. Download free and keep every key formula in your pocket!

Relativity Simulator is an interactive relativity toolkit built strictly on the axiomatic foundations of modern physics. There is no "hard sci-fi" here — every result traces back to the Lorentz transformation of special relativity or the Einstein field equations of general relativity, and is verified against numerical truth fixtures. 【Real physics, not imagination】 · 20 interactive modules covering core effects from special relativity to black holes, gravitational waves, and curved spacetime; · Each module ships with precise charts, adjustable parameters, and a "Theory Card" with a fully visible derivation chain; · All demo numbers are recomputed locally on your device from real CODATA constants — nothing is fabricated. 【Phenomena you can verify yourself】 · Gravitational time dilation: why clocks run faster up high — ~80 ns/day faster atop Everest, ~38 µs/day faster on GPS satellites; · Twin paradox: fly to 4.22 light-years at 0.8c and the Earth twin ages 10.5 years while the traveler ages only 6.3; · Tidal disruption: why you get stretched into "spaghetti" falling into a black hole — small holes tear you outside the horizon, supermassive ones only after you cross it; · Plus light bending, gravitational lensing, the Schwarzschild horizon, frame dragging, and mass–energy equivalence E=mc². 【Built for learning and teaching】 · Volume-based progression: kinematics → gravitational field → black holes → cosmology → applications; · Bilingual (zh/en) system notes ship with every effect: derivation, physical quantities, and references; · Chinese / English UI follows your system language. 【Privacy first】 The app collects, stores, and transmits no personal data, embeds no third-party SDKs, and runs every computation locally on your device. Whether you are studying, teaching, or simply curious, Relativity Simulator lets you actually run the "invisible spacetime" and watch it.