Every concept, animated
Short animated explainers for 336+ concepts across 10 subjects. Watch, learn, and explore — all free, forever.
Big 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 StructuresBlockchain
Chain of blocks where each block contains data and a cryptographic hash linking it to the previous block. Immutable, decentralized ledger.
Computer ScienceFibonacci 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 TheoryPythagorean Theorem
3D visualization of the Pythagorean theorem with squares built on each side of a right triangle.
MathematicsAC vs DC Current
3D comparison. DC: electrons flow one direction steadily (battery). AC: electrons oscillate back and forth 60 times per second (wall outlet). Show waveforms: flat line vs sine wave.
ElectromagnetismAngular Momentum
3D ice skater spinning. Arms out: slow spin. Pull arms in: spin faster. Angular momentum L=Iω stays constant — decrease moment of inertia, increase angular velocity.
Classical Mechanics