Tag: cellphones

  • Nation & World

    Do phones belong in schools?

    Banning cellphones may help protect classroom focus, but school districts need to stay mindful of students’ sense of connection, experts say.

    4 minutes
    Close up of elementary student typing text message on smart phone
  • Nation & World

    A thinner, flatter lens

    A new meta-lens works in the visible spectrum, seeing smaller than a wavelength of light. Because of this development, high-efficiency, ultra-flat, or planar, lenses could replace heavy, bulky ones in smart phones, cameras, and telescopes.

    5 minutes
  • Nation & World

    Attention, undivided

    Jay Winsten of the Harvard School of Public Health hopes to recruit entertainers for a campaign to reduce distracted driving.

    5 minutes