I mentioned in last week’s column about weaving in yarn ends at the completion of a knit or crochet project. Some crafters will tell me they tie knots when joining yarns on a project. While that may ...

Most batteries are rigid and incompatible with water. But people work and play in oceans and estuaries, and they could benefit from flexible and saltwater-safe power sources.

Most batteries are rigid and incompatible with water. But people work and play in oceans and estuaries, and they could benefit from flexible and saltwater-safe power sources. Now, researchers report ...