| Sumario: | Part of a special section on the ideas that will shape the 21st century. Physicists now believe that they have succeeded where Albert Einstein failed, that is, to develop a theory that explains everything. This theory has been termed the superstring theory, and makes the universal explicable from both the large and small perspective. According to this astonishing concept, all the different components of the atomic realm are not really dotlike entities stacked inside each other, rather each basic particle is composed of a tiny thread of energy a hundred billion times smaller than a nucleus. The main problem that these scientists now face is finding a single piece of proof to back the theory.
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