The Floating Disc
A picture in which nothing moves, and something will not keep still.
这个体验还没有翻译，所以文字仍是英文。
玩法
Nothing on the next screen moves
Let your eyes wander across the picture, or move your head a little closer and further away.
- 不到一分钟 · 1 个问题 · 然后是解释
- 这幅会动，或看起来会动。
原理 — 建议试过之后再读
Motion from stillness
Your eyes are never perfectly still. Each small movement shifts the two stripe patterns differently: along the stripes nothing changes, across them everything does.
The disc and the field disagree about how far the image moved, and your brain settles the argument by deciding the disc is floating.