Issues

A new search for primordial deuterium finds less than others had reported previously. The new results give some comfort to those who favor a closed universe.

A new trap, larger condensates, collective oscillations, interaction effects and nondestructive observations: A few groups have achieved a lot of results a year after the creation of dilute gaseous Bose–Einstein condensates.

Much of the world is waking up to the economic promise of technology. The United States should be both vigilant and proactive in this high‐stakes arena.

A minute amount of appropriately placet impurity has fascinating effects on the nature of the superfluid transitions in helium‐4 and helium‐3, and on the ordering of ³He‐⁴He, mixtures.

Physicists, considering the heart as an excitable medium driven by limit‐cycle oscillators, can help cardiologists gain important insights into the prevention and control of deadly arrhythmias.

How a misfiled brochure led to the rediscovery of a long‐forgotten exhibition and the museum that housed it.

Recent experiments have deepened our insight into the wonderfully counterintuitive quantum theory. But are they really harbingers of quantum computing? We doubt it.