#education

Diátaxis — Documentation Framework

A systematic, pragmatic approach to organizing and writing technical documentation. Proposes four documentation types (tutorials, how-to guides, reference, explanation) and their relationships. Reference site maintained by an enthusiast with substantive research and methodology.

Folding Paper Globes

Free printable paper globe templates for Earth, the Moon, Mars, and other celestial bodies, plus data visualization globes showing earthquakes, volcanoes, ocean temperature, and more. Download, print, cut, fold, and glue to create physical 3D globes.

So You Want to Learn Physics

Hand-curated self-study physics curriculum by Susan Rigetti. A comprehensive learning guide used by 600,000+ readers to learn physics from first principles, with an updated second edition (2021).

30 Essential ML Papers - Curated Learning List

A hand-curated collection of 30 foundational AI and deep learning papers with plain-language explanations, based on Ilya Sutskever's reading list for John Carmack. Full papers hosted with beginner-friendly guides to difficult concepts.

Honeypot Live Stream

Real-time interactive dashboard displaying live telemetry from an SSH honeypot for security research, threat intelligence, and educational purposes. Shows attacker behavior, commands, credentials, and client fingerprints in real-time.

BambooGrid – Power Grid Modeling Tool

BambooGrid is an open-source web-based visual editor for power grid modeling and load-flow analysis. Built on Pandapower, it lets students and engineers design power networks and run simulations directly in the browser. A niche tool with genuine utility for its community.

Immersive Linear Algebra

Interactive linear algebra textbook with fully interactive figures. A handcrafted educational resource by academics (Ström, Åström, Akenine-Möller) covering vectors, matrices, eigenvalues, and fundamental linear algebra concepts. The first textbook to pair mathematical exposition with fully interactive visualizations.

Explorable Explanations

A hub for learning through interactive, play-based exploration. Curated collection of explorable explanations and tools for creating them. Founded by Bret Victor's pioneering work.

Khan Academy

Free education for anyone, anywhere. Math, science, computing, and more with personalized learning.

Brilliant

Interactive courses in math, science, and CS. Learn by solving problems, not watching videos.

3Blue1Brown

Grant Sanderson's math animations. Beautiful visualizations that build genuine understanding.

Better Explained

Math and programming concepts explained intuitively. Focus on understanding over memorization.

VisuAlgo

Visualize algorithms and data structures. Step through sorting, trees, graphs, and more.

OSSU Computer Science

Path to a free self-taught CS education. 200K+ stars. Complete curriculum using free online courses.

Stellarium Web

Free online planetarium. View the night sky from anywhere on Earth at any time. Beautiful and educational.

Art of Problem Solving

Math training for bright students. From contest math to university preparation.

Investopedia

Financial education and market data. Learn investing concepts and track markets.

pwn.college

Cybersecurity education platform. CTF-style learning from ASU.

All About Circuits

Free electrical engineering education. Textbooks, worksheets, calculators, and community forums.

The Physics Classroom

Physics tutorials and interactives. Clear explanations of physics concepts.

PhET Simulations

Interactive science simulations. Physics, chemistry, biology, and math.

HyperPhysics

Encyclopedic physics reference. Concept maps connecting physics topics.

Chemguide

Chemistry tutorials for students. Clear explanations of chemistry concepts.

Open Culture

Free cultural and educational media. Courses, books, films, and more.

MathWorld

Comprehensive mathematics encyclopedia. Definitions, theorems, and explanations for every math concept.

Desmos

Beautiful, powerful graphing calculator in the browser. Free and used in schools worldwide.

Nicky Case

Interactive explorable explanations of complex topics. Game theory, anxiety, social networks visualized.