Ring Around
Two dark discs, one in a tight ring and one in a wide one.
이 체험은 아직 번역되지 않아 글이 영어로 나옵니다.
하는 방법
먼저 보고, 그다음 답하기
Two dark discs, one in a tight ring and one in a wide one.
- 1분 이내 · 질문 1개 · 그다음 설명
원리 — 해 본 뒤에 읽는 것을 추천합니다
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.