The Hairy Ball Theorem, from puzzle to proof
A tactile 3D math teaser turns a furry sphere into a viewer puzzle, then previews a deeper proof.
By @3blue1brown for 3Blue1BrownRuns 01:16
This film opens with Library
A free account opens 100 hand-picked films. Library opens all 4,520 of them for $6 a month.
Free takes an email or Google, no card. See the plans
Why it works
The tactile object arrives under the title by about frame 32 while narration immediately names the concept. The puzzle begins at the frame 776 cut, and internal picture changes at frames 1496 and 1847 progressively turn the concrete metaphor into a formal preview before the final invitation.
Films like this
Tagged blenderverticalmath explainer3d animationvisual metaphorpuzzle hookvoiceoverdark background
