The science of symmetry – Colm Kelleher

查看完整课程: 在家DIY的最佳美甲://ed.ted.com/lessons/the-science-of-symmetry-colm-kelleher

When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is “a transformation that leaves an object unchanged.” Huh? Colm Kelleher unpacks this abstract term and explains how animal’s distinct symmetries can tell us more about them — and ourselves.

Lesson by Colm Kelleher, animation by Andrew Foerster.