b the electromagnetic-spectrum radiation that is propelled through these jets.Super radiance can only be performed on rotating black holes, preferably with large mass. When a "light ray [enters] the ergosphere with a certain energy (say, a visible light ray), it comes out of the ergosphere with more energy (say, an x-ray)" (Jebornak, 1998). This extra energy comes from the black holes rotational energy. When the ray enters the ergosphere it speeds up, causing the ray to gain more energy than when it had entered. This process has the same draw backs as the Penrose, though when the black hole stops rotating it can no longer generate power by this method. This is why massive black holes are preferred, the larger a black hole, the more rotational energy it has at the same rates of rotation.Hawking radiation is the most efficient process of gathering energy from a black hole and the most feasible method. The ideal black hole for this method is one with a mass near that of primordial black holes since "black holes whose masses are greater that the mass of the earth" generate less energy than the background radiation of the universe (Kaufmann, 1989). The power output of a Schwarzschild black hole is equal to "4.8 * 10^33f(T) / M2, were f(T) is [dependent] on the particle degrees of freedom that can be radiated" (Semiz, 1995). The f(T) stands for the amount of Hawking radiation that can escape the black holes event horizon that we can presently harness. This equation shows how as a black hole loses mass through changing its energy into matter: it will radiate even more energy. A Schwarzschild black hole with "mass of 1012 kg will radiate 7.9 * 109 W [but] only 45.3% of the energy will be carried in channels we can intercept" (Semiz, 1995). Semiz goes on to show that a black hole with one tenth the mass of the one above would radiate "2.2 * 1012 W, about three times the present power consumption of the earth," and have an "80.8% efficiency" r...
