Turning the Tables
Two tables: one long and thin, one short and wide. Or are they?
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 tables: one long and thin, one short and wide. Or are they?
- 不到一分钟 · 1 个问题 · 然后是解释
原理 — 建议试过之后再读
Undoing a depth that is not there
The two tabletops are the same parallelogram, one turned a quarter turn. The legs and edges make you see surfaces lying in depth, and your brain undoes the foreshortening it expects: the top that points away from you is stretched out to its supposed real length, the one lying across is not.
The psychologist Roger Shepard drew it for his book of illusions Mind Sights in 1990. Knowing the answer does not make the effect go away — the correction happens before you get a say.