The object in front of me is supposed to be rectangular parallelepiped, but there is a mysterious three-dimensional movie called "cylinder" that is reflected in the mirror "Ambiguous Cylinder Illusion ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This wooden model of a rectangular ...

Along with the development of technology, various materials with different characteristics of materials are coming out. However, "reconfigurable materials" have been devised which can significantly ...