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The newest form of radioactivity, two-proton decay, has been imaged directly using an optical time-projection chamber. The protons are emitted in a way that reflects the internal dynamics of the parent nucleus.
The most precise test of time dilation so far assures us that all is well with the special theory of relativity, and sets important benchmarks for practical applications and for emerging theories of quantum gravity.
Fundamental research can yield unforeseen benefits of great value for society, but often this happens only many years after the initial breakthroughs have been made. Can society find a way to pay back this debt?
An antenna for optical frequencies that operates by tuning into the interaction of surface-plasmon polaritons, supported by an array of nanometre-sized holes in a thin metal film, represents another step towards the manipulation of light at the nanoscale.
The physics of phase transitions beautifully describes the collective behaviour of many populations of inanimate particles, from water molecules to magnetic spins. But could it also help in understanding ensembles of living neurons?
Two papers published in 1957 helped to define the field of nuclear astrophysics. Since then, the field has expanded to include a broad range of phenomena in addition to the origin of the elements.
It is fifty years since John Bardeen, Leon Cooper and Bob Schrieffer presented the microscopic theory of superconductivity. At a wonderful conference in Urbana the 'good old days' were remembered, and the challenges ahead surveyed.