a solid Home › Forums › setting the stage › solids as quantum systems › a solid This topic has 0 replies, 1 voice, and was last updated 1 week, 1 day ago by Ibrahim_Ali. Viewing 1 post (of 1 total) Author Posts September 2, 2026 at 10:32 am #14865 Ibrahim_AliParticipant A solid is a fundamental state of matter—alongside liquids and gases—that retains a fixed shape when left untouched 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