Skill Secrets on MSN5d
How to Create a Stunning Metal Triangle Illusion with WeldingThe Penrose triangle, an impossible-looking shape, is made by welding metal pipes together. First, the metal pipes are cut ...
[Updated] Ulrich Schwanitz claims to have created a 3-D Penrose triangle without resorting to the usual optical illusions. We'll believe it when we see it.
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