Issues

By rapidly changing the dielectric constant in part of the guide, one can create mode-trapping horizons and an analogue of Hawking radiation.

Evidence is growing that gamma-ray bursts are generated by relativistic jets of material ejected from atypically massive and energetic supernovae flattened by high spin.

Scientists have been fighting creationists and intelligent-design advocates on school boards and in state legislatures, the courts, and even the Smithsonian Institution.

From fluorescent light bulbs to power stations, General Electric is betting on profits from energy-efficient and environmentally friendly products.

Changes in the net dipole moment of certain materials form the basis for a broad range of IR detectors.

Chaotic systems were beyond the reach of an ingenious coordinate-invariant quantization scheme developed by Albert Einstein, and to this day, their quantization remains a challenge.

Polarized high-energy photons are excellent probes of protons, neutrons, and nuclei. Nowadays they are readily made by shining laser light at a high-energy electron beam.