Issues

One advantage of Fermi gases over Bose–Einstein condensates is the absence of collisions that can destroy an interference pattern.

An improved method for weighing the heaviest quark promises more stringent tests of particle theory.

The more partners in a project, the more resources available, but the more complicated decision making becomes.

The global face of science had lots of smiles at an unusual annual meeting in Germany, on the shores of Lake Constance.

A growing number of politically active scientists, dismayed with how science has fared under the Bush administration, are urging their colleagues to work for John Kerry.

The Arctic has warmed by about 1°C in the past two decades. That time period has seen glaciers retreat, permafrost thaw, snow cover decrease, and ice sheets thin.

The young Teller applied the new quantum mechanics theory to understanding molecules. In later years, his interest in nuclear fusion and matter at high energy density meshed naturally with his role in national defense.

Having lived through upheavals in Hungary and Germany between the wars, Teller understood that political and military catastrophes are entirely possible. He was, perhaps, less aware that catastrophe can result from excess as well as inaction.

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