Five interactive atlases · English & 中文
Ideas you can change, not just read.
Each atlas maps a subject in ten chapters and 1,001 original entries, and turns the big ideas into small experiments: drag a curve, run a simulation, solve a game, and see the numbers, graphs and explanations update together. Free to use, nothing to install.
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Mathematics Atlas数学图谱
Number, geometry, algebra, calculus, probability and logic as experiments: tilt a tangent, fold a shape, test a conjecture.
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Physics Atlas物理图谱
Motion, fields, waves, heat, light, quantum and cosmos: simulations you steer, with the model and its assumptions beside them.
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Computer Science Atlas计算机科学图谱
Algorithms, data structures, computation, networks, security and AI, stepped through one move at a time.
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Chemistry Atlas化学图谱
Atoms, bonds, reactions, energy, equilibrium and materials, computed live as you change the conditions.
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Economics Atlas经济学图谱
Markets, choices, games, money, growth and trade as models you can test — with contested questions shown fairly and data sourced.
One model per lab
Every number, graph and sentence in a lab comes from the same small model, so what you read always matches what you see.
Two languages
Every atlas runs fully in English and Simplified Chinese, and you can switch at any time.
Runs in your browser
No account and no sign-up: the labs run in the page, and your notes and bookmarks stay on your own device.
For classrooms
Share a link to any experiment state, set a challenge, or follow a guided journey across chapters.