"Por difícil que parezca la vida, siempre hay algo que puedes hacer y lograr" - Stephen Hawking
Stephen W. Hawking (1942-2018) will be remembered not just for being an accomplished theoretical physicist with a brilliant mind but also for symbolising the ability of the human spirit to rise and triumph above severe physical disability of the body and achieve what is presumed to be the unthinkable. Prof Hawking was diagnosed with a debilitating condition when he was barely 21 years old, but he showed resilience over his adversities and continued to engage his mind in an attempt to theorize some of the intriguing scientific mysteries of the universo.
La idea de los agujeros negros emerged from Albert Einstein’s general theory of relativity. The cosmic objects los agujeros negros– thought to be the biggest enigmas of the known universo– are extremely dense, so dense that nothing escapes their huge gravity, not even the light. Everything gets sucked into it. This is the reason los agujeros negros son llamados los agujeros negros because nothing can escape its clutches and also its impossible to see a agujero negro. Porque los agujeros negros do not emit light or energy in any form unlike all other cosmic objects, they would never undergo explosion. This meant los agujeros negros would be immortal.
Stephen Hawking questioned the immortality of the los agujeros negros.
En su carta titulada ''Agujeros negros explosions?’’, publicado en Naturaleza in 19741, Hawking came up with the theoretical conclusion that not everything is sucked into a agujero negro y los agujeros negros emit an electromagnetic radiation called Radiación de Hawking, detailing that radiation can escape from a agujero negro, because of the laws of quantum mechanics. Thus, agujero negros too would explode and convert to gamma rays. He showed that any agujero negro will create and emit particles such as neutrinos or photons. As a agujero negro emits radiation one would expect it to lose mass. This in turn would increase the surface gravity and so increase the rate of emission. The agujero negro would therefore have a finite life and eventually disappear into nothing.This stuck down the long-held idea by the theoretical physicists that black holes are immortal.
La Radiación de Hawking was thought to contain no useful information about what the agujero negro engulfed because the information swallowed up by the agujero negro would have been lost forever.In a recent study published in 2016 in Physical Review Letters, Hawking showed that black holes have a halo of ‘soft hair’ (technically, low-energy quantum excitations) around them which might store the information. More research on this could perhaps lead toan understanding andan eventual resolution of the agujero negro problema de información.
Any proof of Hawking’s theory? No observational confirmation yet seen in the cosmos. Agujeros negros are too long-lived to be observed today at their end.
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{Puede leer el trabajo de investigación original haciendo clic en el enlace DOI que figura a continuación en la lista de fuentes citadas}
Fuentes)
1. Hawking S 1974. ¿Explosiones de agujeros negros? Naturaleza. 248. https://doi.org/10.1038/248030a0
2. Hawking S et al 2016. Pelo suave en agujeros negros. física Rev. Lett.. 116. https://doi.org/10.1103/PhysRevLett.116.231301
