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.

    Close up of elementary student typing text message on smart phone
  • Health

    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.

  • Health

    Attention, undivided

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