• News

    U.S. time now flows from atom fountain

    The United States has switched to the atomic fountain clock, which sets itself according to the resonant frequency of rising and falling balls of cold cesium.
  • News

    Magnets trap neutrons for a lifetime

    A new device that uses magnets to trap neutrons may enable physicists to measure more precisely how quickly free neutrons decay, a time period with implications for understanding both the weak force and the early universe.
  • News

    Social thinking in schizophrenia

    Training that fosters thinking skills in social situations may improve attention, memory, and social skills of people with schizophrenia.
  • Feature

    Survivors' Benefit?

    Smallpox outbreaks throughout history may have endowed some people with genetic mutations that make them resistant to the AIDS virus.
  • Feature

    Cultures of Reason

    East Asian and Western cultures may encourage fundamentally different reasoning styles, rather than build on universal processes often deemed necessary for thinking.
  • Feature

    Building a Supermodel

    Researchers are combining ergonomics and biological research with computer power to build a virtual human that can simulate human biology from anatomy down to the genetic code.
  • News

    Lasers act on cue in electron billiards

    Electrons torn from atoms by a laser beam can shoot back into the atom and knock loose other electrons like balls in a billiard game, a finding that may have applications in nuclear fusion, particle acceleration, and fundamental physics experiments.