Do you know how early cultures preserved meat and fish by hanging thin strips on racks out in the sun and wind? Is this method effective? How do you know when food has had enough exposure time? Richard Budd Arlington, Massachusetts
My 12-year-old daughter gets very cold at night when we’re camping. We are backpackers and tend to camp just under treeline between May and October. She currently uses a junior polyfill bag with an inflatable pad and some good long underwear. What could we do to keep her warm and give us a peaceful night’s sleep?