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Interactives and Explorables
algebra
MathBox: Tool for Thought (Algebra & Fourier Analysis)
calculus
An Interactive Introduction to Fourier Transforms
complexity science
Complexity Explained
cryptography
the cryptopals crypto challenges
drawing
ZygoteBody for learning human anatomy
geography
The True Size Of Nations
learning
How to remember anything forever-ish
machine learning
Neural Network Playground
mathematics
An Interactive Introduction to Fourier Transforms
Euclidea: Interactive geometric puzzles
Seeing Theory
Mathigon
Parallel
music
Every Noise At Once
music theory
Phrases and Cadences
philosophy
The History of Philosophy
physics
Physics Classroom
programming languages/clojure
4Clojure
programming languages/python
Python Tutor | Visualize Python Code Execution
CodeSkulptor3
CheckiO | Python Online Playground
programming languages/r
Swirl: Learn R, in R.
programming languages/scratch
Scratch Homepage
quantum computing
Quantum Computing for the Very Curious
spaced repetition
How to remember anything forever-ish
transform calculus
An Interactive Introduction to Fourier Transforms