In the battle against the damaging effects of concussions, and with the ongoing need for better cushioning for prosthetics, new tools are always welcome. Auxetic foam is one – it expands as it’s ...

Q: My parents have a 9-foot-by-12-foot area rug, which is in excellent condition, in their bedroom. Under the rug is green foam-rubber padding that has become as hard as a rock over the years and has ...