what is a solid? Home › Forums › setting the stage › solids as quantum systems › what is a solid? This topic has 0 replies, 1 voice, and was last updated 10 hours, 5 minutes ago by emmanuvelfeon. Viewing 1 post (of 1 total) Author Posts March 11, 2026 at 8:01 am #14532 emmanuvelfeonParticipant So solid is a state of matter where the particles are tightly packed giving a structure shape and volume. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In