Not sure what to think about this experiment, the results will be fascinating no matter how they turn out.
Just hope we are around to view them.
They claim the black holes will dissipate once created. The more matter and energy a black hole swallows, the more massive the singularity, and the bigger the event horizon surrounding it becomes. The size of the event horizon is directly proportional to the black hole's mass. Double the mass of a black hole and the radius of the event horizon also doubles.
