http://www.ias.edu/about/publications/ias-letter/articles/2011-summer/black-holes-string-theory-maldacena
Black holes have always been a mystery to us. We have never really understood their dimensions or what they are. Well according to Niels Obers and his two doctoral students Jay Armas and Jakob Gath they have made a ground breaking theory describing the black hole's dimensions. They explain that the black hole has the characteristics of being a solid and a liquid at the same time. The reason behind this is that it is based on theories of the black branes and blackfolds. The black branes are hydro-dynamic objects, which means they have the same properties as a liquid. Niels Obers and his two doctoral students have discovered that black branes also have properties, which can be explained in terms of solids. The black branes behave like an elastic material when they're bended. When black branes are bend and folded into a blackfold, a piezoelectric effect is created. This new effect can be understood as a slightly bent and charged black string with a greater concentration of electric charge on the innermost side in correspondence to the outer most side. This creates two electrically charged poles on the black strings. With the new theory behind black holes we might be able to have a break through with other black hole phenomena, such as how they are created, or how dangerous they are, or what even goes on within a black hole.
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