Аннотация:
A (3+1)-dimensional asymptotically at Kerr black hole angular speed + can be used to de ne an e ective spring constant, k = m2 +. Its maximum value is the Schwarzschild
surface gravity, k = , which rapidly weakens as the black hole spins down and the
temperature increases. The Hawking temperature is expressed in terms of the spring
constant: 2 T = k. Hooke's law, in the extremal limit, provides the force F = 1=4,
which is consistent with the conjecture of maximum force in general relativity