Davide Castelvecchi

All Stories by Davide Castelvecchi

  1. Physics

    Neutron vision

    A new neutron detector might help identify smuggled radioactive materials.

  2. Physics

    Black Hole of Light: Laser pulses create model of event horizon

    Physicists have created the optical analog of a black hole's surface of no return, a setup that could help test whether actual black holes glow.

  3. True Blue: Electron jumps make protein shine like an LED

    A protein thought to be fluorescent instead emits light the way an LED does, suggesting that some living things might do the same.

  4. Tech

    Diamond detectors

    The quantum states of single diamond impurities work as magnetic sensors that could enable nuclear magnetic resonance to detect single atoms.

  5. Physics

    Birds network too

    Starlings in a flock adjust their trajectories to those of their closest neighbors, which helps the flock stay together when under attack.

  6. Chemistry

    Energy in Motion

    The molecular machines of living cells harvest energy out of randomness, and scientists are learning how to do the same with artificial molecules.

  7. Tech

    Nanocrystal

    Researchers have used DNA as Velcro to create the first materials that spontaneously assemble into regular 3-D patterns.

  8. Chemistry

    Chomping on uranium

    Chemists forced the most common form of uranium into a new kind of chemical reaction, which could lead to new industrial applications and new tools to clean up the environment.

  9. Physics

    Scanner Darkly: Tiny venetian blinds enhance radiography

    Microscopic gratings that select scattered X rays might improve luggage screening and cancer detection.

  10. Physics

    Dusty Fireball: Can lab-made blob explain ball lightning?

    Artificial cousins of ball lightning contain microscopic particles, just like a model says they should. With video.

  11. Tech

    Retro RAM

    A prototype memory chip stores data bits using carbon nanotubes as mechanical switches.

  12. Physics

    Bathtub Optics: Bending light also shifts it sideways

    When light bends at an interface, it also shifts depending on its polarization. With animation.