Ali Övgün

A superconducting contact is like a narrow bridge between two shores, carrying current without friction. Place such a bridge near a massive star, and it will feel time flowing slower near the star's surface. Clocks on the shores tick at different rates, and the current begins to oscillate differently. But if the star rotates slowly, the picture gets more complicated.

A massive top spins so fast that space itself twists into a spiral around it. This is a black hole — only instead of wood and metal, it's made of pure gravity. Add an unusual electromagnetic field that slightly changes the rules of the game, and you get a 'deformed' black hole: its shape and behavior differ a bit from the familiar ones described half a century ago.