Why you should wash your hands
2020-04-02 - Columbia, KY - Photo by Debra Waddell
The results of an experiment in hand washing. Door knobs, phones, and at top right, unwashed hands, all caused considerable growth after just a couple of weeks. At bottom right and left, bread after careful hand washing shows considerably less activity. Comments | Permalink
2020-04-02 - Columbia, KY - Photo by Debra Waddell
The results of an experiment in hand washing. Door knobs, phones, and at top right, unwashed hands, all caused considerable growth after just a couple of weeks. At bottom right and left, bread after careful hand washing shows considerably less activity. Comments | Permalink