Ring Around
Two dark discs, one in a tight ring and one in a wide one.
这个体验还没有翻译，所以文字仍是英文。
玩法
先看，再回答
Two dark discs, one in a tight ring and one in a wide one.
- 不到一分钟 · 1 个问题 · 然后是解释
原理 — 建议试过之后再读
Pulled out, pushed in
The discs are the same size. A ring close to a disc tends to be merged with it, so the disc borrows some of the ring’s size and looks larger; a ring far away is compared with it instead, and next to something big the disc looks smaller.
The Belgian philosopher and mathematician Joseph Delboeuf described it in 1865. It is a close relative of the Ebbinghaus circles, and it has been suggested that the same thing makes a portion of food look smaller on a large plate.