Every concept, animated
Short animated explainers for 502+ concepts across 12 subjects. Watch, learn, and explore — all free, forever.
A* Pathfinding · Shortest Route
A* pathfinding explained in 3D — watch the algorithm explore cells using f = g + h to find the shortest path through obstacles. Interactive animation on Unseel.
Computer ScienceBig O Notation
How Big O notation measures algorithm efficiency — see O(1), O(log n), O(n), O(n²), and O(2ⁿ) growth rates compared in 3D.
AlgorithmsBinary Search
Step-by-step visualization of binary search on a sorted array — halving the search space with each comparison.
AlgorithmsBinary Search Tree
3D tree of floating nodes with glowing edges. Keys travel down to find their position with in-order traversal.
Data StructuresChain Rule
When functions are nested, the derivative is the product of outer and inner derivatives. The foundation of backpropagation in neural networks.
CalculusConic Sections
Slice a double cone with a plane at different angles to produce four curves. Horizontal cut → circle. Tilted cut → ellipse. Cut parallel to the cone\'s side → parabola. Cut steeper than the side → hype
GeometryEuler\'s Identity
Euler\'s identity e^(iπ) + 1 = 0 links five fundamental constants in one equation. Show the complex plane with the unit circle, Euler\'s formula e^(iθ) = cos θ + i sin θ tracing the circle, and the spec
AnalysisFibonacci Sequence
The Fibonacci sequence visualized — watch 1, 1, 2, 3, 5, 8, 13, 21 build into the golden spiral. See how the ratio converges to phi (1.618).
Number Theory