EPA to handle ‘biohazards’ after Penrose funeral home owners fail to respond to clean-up ... Grantham said the EPA will take the lead on addressing the building and determining future steps.

Now, normally, when people say they’ve designed a 3-D Penrose triangle, all they’re really saying is that it looks, from some perspectives, like the 2-D representation of the triangle.

This tricky visual illusion is also known as a Penrose stair, named after its discoverers, Lionel and Roger Penrose. ... Aromatic ring system reminiscent of M.C. Escher's Penrose stairs.