Sep. 30, 2013 — A black hole. A simple and clear concept, at least according to the hypothesis by Roy Kerr, who in 1963 proposed a "clean" black hole model, which is the current theoretical paradigm. From theory to reality things may be quite different. According to a new research carried out by a group of scientists that includes Thomas Sotiriou, a physicist of the International School for Advanced Studies (SISSA) of Trieste, black holes may be much "dirtier" than what Kerr believed.
According to the traditional model, black holes are defined by only two quantities: mass and angular momentum (a black hole rotation velocity). Once their progenitor has collapsed (a high mass star, for instance, that at the end of its life cycle implodes inwards) its memory is lost forever. All that is left is a quiescent black hole, with almost no distinctive features: all black holes, mass and angular momentum aside, look almost the same.
According to Sotiriou, things may not have occurred this way. "Black holes, according to our calculations, may have hair," explains Sotiriou, referring to a well-known statement by physicist John Wheeler, who claimed that "black holes have no hair." Wheeler meant that mass and angular momentum are all one needs to describe them.
New studies and hypothesis had been discovered about black holes. A spacetime matters that faces the gravity by cosuming everthing, Has hair. What is the significanse of the black hole having 'hair'? It could means that the black hole could not grow but the hair could and is the reason of having a magnetic power by consuming everything that they see.
They regret most of the scientist ideas that they believed that the black hole has no hair at all such as Stephen Hawking.
Why it is important? I love astronomy, stars planets milkyway, etc. Also it is related of what I am doing. HL/SL Biology, and someday I will study all of this. Also it is good to know what is going on in the universe, and know how to interact with all of these.
What is the connection between me and this article? Well Is something complicated. Everytime when I do a science article, I choose something if it is related to animals or to brain health. This time I tried to make something different, something that I don't really know, such as astronomy or the black hole.
Global context: It is a Continous development. They simply keep looking and serching for what the black hole consist. And as they proove that the black hole might have hair, more hypothesis will be shown by future scientist.
Ok...Interesting but not sure how it relates to Biology. Remember you need to find articles that relate to a concept in Biology. This is a bit of a stretch. 6/7
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