Penrose steps
A surname.
An impossible loop of endlessly ascending and descending stairs, or an optical illusion appearing to be one.
Bringing about contraction of tissues; harsh, raw, austere. / (medicine, by extension) That stops bleeding.
plural of photohydration
その博物館の新しい展示は、ゆっくり回転するペンローズの階段の模型を備えており、永遠に上り下りしているかのように見える。
Don't have an account? Sign up
Do you have an account? Login
DiQt
Free
★★★★★★★★★★