For Daily Use

  1. Microbes

    Cut leaves in bagged salads help Salmonella grow

    Juice from torn-up leafy greens helps Salmonella spread in bagged salads.

    By Laurel Hamers
  2. Tech

    Wi-Fi can help house distinguish between members

    Using Wi-Fi, computers could one day identify individual family members in a smart home.

    By Emily Conover
  3. Health & Medicine

    It’s time to retire the five-second rule

    Wet food can slurp bacteria off the floor in less than a second.

    By Laura Sanders
  4. Health & Medicine

    Cornea donation may have sex bias

    Women receiving a corneal transplant do better when their donors are female, new research finds.