Tag: Ronald Walsworth

  • Science & Tech

    Developing micron-sized magnetic resonance

    Harvard scientists have developed a system that uses nitrogen-vacancy centers — atomic-scale impurities in diamonds — to read the nuclear magnetic resonance signals produced by samples as small as a single cell — and they did it on a shoestring budget using a 53-year-old, donated electromagnet.

    5–7 minutes
  • Science & Tech

    Diamonds are a lab’s best friend

    Using the atomic-scale quantum defects in diamonds known as nitrogen-vacancy centers to detect the magnetic field generated by neural signals, scientists working in the lab of Ronald Walsworth, a faculty member in Harvard’s Center for Brain Science and Physics Department, demonstrated a noninvasive technique that can show the activity of neurons.

    4–6 minutes
  • Science & Tech

    Laser precision added to search for new Earths

    Harvard scientists have unveiled a new laser-measuring device that they say will provide a critical advance in the resolution of current planet-finding techniques, making the discovery of Earth-sized planets possible. The discovery of planets outside of our solar system, called “exoplanets,” is one of the hottest fields in astronomy and holds great promise to increase…

    4–7 minutes
  • Science & Tech

    Harvard researchers stop, restart, light

    Albert Einstein theorized that light cannot travel faster than 186,282 miles per second. But he never said it couldn’t go slower. Lene Hau, a physics professor in the Faculty of Arts and Sciences at Harvard University, says Einstein would “probably be stunned” at the results of her recent experiments. Working in her laboratory at the…

    1–2 minutes