User talk:Swapnilbhattacharya1

Black Holes n Time Travel!!!
Hello everyone! ..... It is known that frequency of light waves increases due to gravitation... moreover it is thought that the infinite gravity in a black hole can curve space-time to an extend that travelling to past could be possible,right? It is observed that only gamma rays and neutrinos may escape black holes in some case...BUT as we know that escape velocity for black hole is c(i.e 3*10^8 m/s) ....so it is is unlikely that gamma rays or neutrinos could've gained velocity more than c??!!!! Is it not possible that may be gamma rays and neutrinos undergo QUANTUM TUNNELLING assisted by curved space-time ...and thus "TUNNEL OUT " of the black hole?????

-Swapnil Bhattacharya,S.G.C,Mussoorie