Looking round corners with Black mirrors

This gazing ball is one of those black mirrors that tempt you into looking off to the side, at the unseen and unseeable. Find out more in my Birkbeck blog on walking around a black hole.

What tremendously thoughtful fun I had meandering round Birkbeck with a black mirror, gazing into a fairy ball!  Sheila Ghelani had designed our route by placing one of the mirrors she’d created onto a map: we were going to meander around the black hole thus created. Decked out with palm-size pebbles of mirrors in black …

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