Penrose's impossible object in 4D

From: "gsax" <gaurav_iitg@xxxxxxxxx>
Date: 14 Jul 2005 00:27:08 -0700

Hi

As you all know, Penrose came up with his Impossible "penrose
tribar"..

He also mentions that he came up with a 4-Dimension version of this
Impossible
object..

I have tried and failed to figure out how it looks..

Does anyone know where I can see this object Oline?

thanks
Gsax

.

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