科学网 vs Relativity Simulator

以“构建全球华人科学社区”为核心使命的科学网于2007年1月正式上线运行，由中国科学报社运营。 中国科学报社是中国科学院所属唯一经国家新闻出版署批准的新闻媒体单位，拥有两报（《中国科学报》、《医学科学报》），一网（科学网），两刊（《科学新闻》、《科学新生活》）及移动新媒体矩阵等传播平台。同时，中国科学报社在全国多个省（自治区、直辖市）建立了记者站，与国内近百所著名高校建立了合作伙伴关系。 作为全球最大的中文科学社区，科学网致力于全方位服务华人科学与高等教育界，以网络社区为基础构建起面向全球华人科学家的网络新媒体，促进科技创新和学术交流。 经过十余年的迅猛发展，科学网已经成为全球最大的中文科教类新闻资讯集散中心，拥有全球最大的中文科教虚拟社区，全球Alexa网站排名和中文网站排名均在全国科技类网站中遥遥领先。数百万海内外科技界专家正在使用科学网的各项服务。

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.