Physics Playground App vs 熊猫刷题

Physics & Math, made playable. Touch a slider and watch the equation rewrite itself. Tilt a ramp and feel the friction. Aim a cannon, dial in a Lorentz factor, swing a double pendulum into chaos. Every idea has a hands-on playground that responds in real time. One app. The entire universe of physics and math - from counting blocks to category theory, from throwing a ball to the Theory of Everything. WHAT'S INSIDE • 55+ topics across Physics and Math, organized by tier - Classical, Modern, Frontier, plus Math Foundations, Intermediate, and Frontier. • A live difficulty slider that rewrites every explanation in real time for Child, Teen, Undergrad, or PhD. • Interactive playgrounds for every topic. Sliders, simulations, force diagrams, and SpriteKit physics that actually behave like physics. • Mini-games that earn you badges - predict chaos, balance crates, dial in gamma, win at quantum measurement, escape a black hole. • A concept map that shows how every idea connects to every other - drag, zoom, tap a node and dive in. • A constellation of earned badges that grows as you master the subjects. PHYSICS, FROM "WHAT IF" TO "WHY" Newton's Laws. Projectile motion. Energy & momentum. Orbits. Waves. Pendulum chaos. Thermodynamics. Fluids. Optics. Electromagnetism. Special Relativity. Spacetime. Photoelectric effect. Double-slit. Heisenberg uncertainty. Quantum tunneling. Stern-Gerlach spin. Atomic orbitals. The Standard Model. Statistical mechanics. Condensed matter. Lasers. Black holes. The Big Bang. String theory. Loop quantum gravity. Entanglement. Quantum computing. And the prize at the end - a Theory of Everything badge for mastering them all. MATH THAT BUILDS Counting → addition → subtraction → multiplication → division → fractions → decimals → percents and ratios → the number line. Then algebra, geometry, trigonometry, functions, exponents and logs, sequences, probability, and statistics. Then limits, derivatives, integrals, linear algebra, differential equations, complex analysis, topology, and category theory. HOW IT WORKS Pick a topic. Read a leveled explanation that matches your background. Scroll to the live equation strip and watch the variables update as you drag. Play with the simulator. Take on the challenge, earn the badge. Tap a related topic to follow the thread - every page links to its prerequisites and to the ideas it unlocks. BUILT FOR FOCUS • Beautiful, calm visuals on a deep-space backdrop. • Smooth 60fps animations, gentle haptics, and confetti for the wins. • No ads. No accounts. No tracking. • Designed for iPhone and iPad with full split-view support. • Offline-first - everything is on device. WHO IT'S FOR Curious kids who want to know what makes things go. Students who'd rather feel an equation than memorize it. Self-learners coming back to math years later. Grad students looking for the cleanest one-page mental model of a topic. Teachers and parents who want a single shareable demo for any concept that comes up. If you've ever wondered why airplanes turn the way they do, why time slows down at high speeds, why a pendulum can be predictable AND chaotic, or what a quantum bit actually is - this is the app. One scroll. One slider. One badge at a time. The universe, unlocked.

熊猫刷题，一款专为自带题库的学习者打造的极简、离线刷题工具。无论你是备战考研、专升本、公考，还是背诵面试八股文，只需将你的真题文件导入，即可随时随地开启沉浸式刷题。 【轻松导入专属题库】 我们提供极其简单的导入方案，支持一键导入主流题库文件格式。首次下载应用，App 内置了标准导入模板，只需按照模板填入题目和答案，通过聊天工具发送至手机，即可一键转存为你的私人题库。 【核心亮点】 - 纯粹本地化：无需网络也能流畅做题。所有数据完全保存在你的本地设备中，无需担心内部资料或私密题库泄露，安全有保障。 - 极简无打扰：告别繁杂的社区动态和花哨的弹窗，我们将界面做到极致克制，让你的注意力百分之百回归题目本身。 - 智能错题收录：做错的题目将自动归纳至错题本。支持自定义标签与专项复习，帮你精准攻克薄弱环节，告别无效重复。 - 沉浸式暗色模式：全面适配暗色模式，即使在深夜或低光环境备考，也能获得舒适的护眼体验。 【适用场景】 - 考研与专升本专业课：市面找不到现成题库？把历年真题自己导进去刷！ - 企业与事业单位内训：内部保密题库本地刷，安全高效。 - IT 面试八股文：导入常见面试题，随时随地自我检测。 - 执业资格证与冷门考试：你的题库你做主，打造专属提分工具。