a line drawing of a transparent cube, with opposite sides drawn parallel, so that the perspective is ambiguous
内克立方体。
"early 20th cent.: named after L. A.
n. 内克立方体
There are other optical illusions that originate from the same or similar kind of visual ambiguity, such as the Necker cube.
这种错觉来自于固有的因为缺乏对深度的视觉线索而导致的模棱两可。
a line drawing of a transparent cube, with opposite sides drawn parallel, so that the perspective is ambiguous
内克立方体。
"early 20th cent.: named after L. A.