Add Yahoo as a preferred source to see more of our stories on Google. Got a question about survival? Send it to Backpacker. I’ve always heard that hikers should “drink to their thirst,” but how long ...

WEST LAFAYETTE, Ind. - While proving a long-held theory that suberin blocks water and nutrient absorption in plants, a Purdue University scientist learned more about manipulating the substance to ...

It makes sense that water is important for living organisms since Earth's surface is about 71% covered by water. When you consider that two of the three most common elements in the human body make up ...

Engineers find the hydrogel polyethylene glycol (PEG) doubles its water absorption as temperatures climb from 25 to 50 C, and could be useful for passive cooling or water harvesting in warm climates.