String theory: scientists are trying new ways to verify the idea that could unite all of physics

By Marika Taylor, Pro-vice-chancellor, Professor, University of Birmingham

In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the University of Cambridge. The lecture was called “Is the end in sight for theoretical physics?”

Hawking, who later became my PhD supervisor, predicted that a theory of everything – uniting the clashing branches of general relativity, which describes the universe on large scales, and quantum mechanics, which rules the microcosmos of atoms and particles – might…

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