Solid Home › Forums › setting the stage › solids as quantum systems › Solid This topic has 0 replies, 1 voice, and was last updated 16 hours, 46 minutes ago by jelomuna. Viewing 1 post (of 1 total) Author Posts February 12, 2026 at 10:54 am #14494 jelomunaParticipant A solid is a type of matter where particles are packed closely together, so it keeps its shape and does not easily change when you try to press or bend it. 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