Hey guys, today in my "Intro to Astronomy" class we started talking about black holes, however i left the class with more questions than answers. At first, the teacher told us that (from Einstein) black holes were created by having enough mass in a sufficiently small space. and that there was an event horizon which determined the escape velocity being grater than that of the speed of light, therefore nothing could ever come out and thus making a singularity inside the black hole. However, the teacher then stated that (from Hawkins) these black holes would eventually "evaporate" . And i didnt understand, because i thought that even if just light enters the event horizon, wont it interact with mass and distribute momentum (because arent there experiments where they found photons acting like particles when coliding with other particles?? :-? :-?) and thus increasing the energy inside the black hole??... After class i went and talked to him and we had a great conversation about this topic, however im still completely confused as to how it happens... I started reading online about this and it just made it worse. I read that in the universe there can be thing called virtual particles that are created, these however, only exist for a relativistically short period of time. Because these "virtual particles" are a set of a particle and an antiparticle and once they appear they immediately destroy each other into a burst of energy... What i understood from my reading was that these particles can appear in the black hole, or at least one inside the event horizon and one outside, and when the antiparticle appears inside it collapses in destroying a particle already inside the black hole, and the particle appearing outside the event horizon becomes a real particle and shoots off and never gets "sucked in" thus reducing the size of the black hole... my question is, is nothing ever faster than the speed of light and does it apply to energy in every form, because if the antiparticle destroys a particle inside the black hole into a burst of energy, how does the energy leave the singularity, or the event horizon?
Any type of constructive feedback is appreciated
Any type of constructive feedback is appreciated