If your hand lotion is a bit runnier than usual coming out of the bottle, it might have something to do with the goop’s “mechanical memory.” Soft gels and lotions are made by mixing ingredients until they form a stable and uniform substance. But even after a gel has set, it can hold onto “memories,” or […] The post Soft materials hold onto “memories” of their past, for longer than previously thought appeared first on MIT Schwarzman College of Computing.