Home › Forums › setting the stage › solids as quantum systems › solid This topic has 0 replies, 1 voice, and was last updated 6 hours, 53 minutes ago by Jokabe. Viewing 1 post (of 1 total) Author Posts October 14, 2025 at 9:00 am #13625 JokabeParticipant A solid is a substance in which the molecules and atoms are closely packed and that has a definite 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