Issues

In the bowels of a zinc mine, 13 thousand phototubes keeping watch over 50 thousand tons of water have provided the strongest evidence yet of neutrino oscillation, and therefore of neutrino mass.

Might we learn more about the strong interactions by studying string theory? That's one possibility raised by recent work showing that string theories and gauge field theories are flip sides of the same coin.

Why should a microtesla field raise the dielectric constant of a glass at millikelvin temperature?

Experimenters can now change the densities of condensed matter by upward of an entire order of magnitude, and thereby impart dramatic changes in physical and chemical properties of materials.

Experiments conducted with scanning tunneling microscopes in ultrahigh vacuum reveal a fascinating, step‐by‐step picture of the etching process.

Beams of light, prevented from diverging by nonlinear media, exhibit particle‐like behavior, as do waves in many other nonlinear systems in nature.