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Interactive Learning Diagrams
Explore concepts visually, from the periodic table to organic chemistry.
Interactive Periodic Table
Explore all 118 elements by family, state, metal type, and atomic mass. Click any cell for the full property card.
OpenInteractive Codon Table
The standard genetic code: every RNA codon mapped to its amino acid, color-coded by amino-acid class. Click any codon for the full amino-acid card.
OpenCell Organelles
Compare animal and plant cells side by side, click any organelle to see what it does, and use the Differences view to spot what each cell type has that the other does not.
OpenHistory of Programming Languages
An interactive timeline of 44 programming languages across seven decades. Hover any language to light up its full ancestry and descendants, and click for the story of who made it and why it mattered.
OpenLineage of Project Management Methodologies
A century of project management as a family tree, from Taylor and Shewhart to Scrum, SAFe, and DevOps. Hover any methodology to light up what it copied and who copied it, and click for the full story.
OpenWhere Your Tax Dollars Go (United States)
Follow FY2024 US federal revenue through the Treasury and out to every major program, with the borrowed quarter of every dollar shown honestly. Type the tax you paid to see exactly where your own dollars went.
OpenWhere Your Rupee Goes (India)
India's Union Budget 2026-27, rupee by rupee: 24 paise borrowed, 22 paise straight to states, 20 paise to interest. Type any tax you paid, even GST, to see where your own rupees went.
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