Some of our packs have deteriorated so much that when cooled, some material comes out of solution. Strangely, the sodium acetate doesn't nucleate on gel-like material. Store the heat packs in liquid ...

Just as a heat pack generates its own heat to warm up, this method harnesses the heat generated inside the material during the liquid process to produce high-performance oxide films without ...

Heat packs and cold packs can offer relief, but choosing between the two can be baffling. Which will be best for your particular pain? Dr. Rajiv Bahl, an emergency medicine physician in central ...