Conditions Of A Black Hole Were Created In A Giant Bathtub

Scientists are unlocking the mysteries of black holes... in a giant bath tub at the University of Nottingham. A team from the Quantum Gravity Laboratory says they have successfully simulated the conditions around black holes and published the first statistical evidence of an effect known as super-radiance, whereby a wave hitting a rotating black hole can extract energy from it.
They built a specially designed 3 metre by 1.5 metre tub with a hole in the centre. Two thousand litres of water is pumped in a closed circuit to establish a spiralling draining flow, just like in a normal bathtub when the plug is removed. Small waves were then generated at varied frequencies to simulate the enigmatic ripples in space.
The research, published in the journal Nature Physics, could lead to similar experiments that demonstrate black hole theories in a laboratory setting that had previously only been hypothesised.
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