Oscar Reutersvärd (1915-2002) has been called the "father of the impossible figure."
He created many drawings that looked solid, but that couldn't actually be built in three dimensions.
One of his best known illusions is the impossible staircase, made even more famous by Roger Penrose and M.C. Escher.
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Oscar Reutersvärd on Wikipedia
Correction: It is Reutersvärd, not -swäld.
ReplyDeleteThanks, Frederik. It's fixed now. Don't know how I missed that.
ReplyDelete