1. Tech

    New nanosize detector picks through DNA

    Researchers have made a device that can differentiate nearly identical DNA molecules, which might lead to sequencing at unprecedented speeds.

  2. Computing

    Making the Macintosh

    Interested in computer history? Alex S. Pang of the Stanford University Library has assembled fascinating material from a variety of sources, including papers donated to the university from Apple’s corporate library, to portray the invention and emergence of the Macintosh personal computer. The evolving Web site includes sections on counterculture and computing, the early Macintosh, […]

  3. Tech

    Flying Leap

    In the history of human flight, first came the daring tinkerers who gave wings to the pent-up human desire to soar. In the wake of their successes came a remarkable proliferation of flying machines, spacecraft, and colorful characters. At this Web site, the American Institute of Aeronautics and Astronautics celebrates these achievements with an annotated […]

  4. Tech

    Hop . . . Hop . . . Hopbots!

    Two prototype jumping robots that hop, crash-and-land, and then hop again are demonstrating a novel mobility concept that may finally enable small, cheap robots to roam widely over rough terrain.

  5. Tech

    Simple system may curb auto emissions

    Researchers have developed a four-component system that acts like an on-vehicle oil refinery and may help significantly reduce the hydrocarbon emissions from internal combustion engines.

  6. Tech

    Technique puts more data into airwaves

    A new approach that exploits the orientations of the electric and magnetic fields in radio waves may increase data flows to and from cell phones and other wireless devices by up to a factor of six.

  7. Tech

    Current may flow free and cheap

    Wires that carry electricity without resistance at relatively high temperatures--and are inexpensive--moved a large step closer to reality as a 100-fold speed-up in depositing a key material wiped out a major obstacle to making those wires.

  8. Tech

    From silicon seeds, laser might sprout

    The achievement of light amplification in a layer of tiny nuggets of silicon called quantum dots raises the possibility that long-desired silicon lasers are on the way.

  9. Tech

    Beyond Imaging

    No longer just a diagnostic tool, ultrasound tackles surgery.

  10. Tech

    Beatin’ Those Low-Life Blue-Laser Blues

  11. Tech

    Membrane Filters Air

  12. Tech

    Rocket Fares to Be High for Space Passengers