thumb|right|320px|Knuckle mnemonic for the number of days in each month of the [[Gregorian calendar. Each knuckle represents a 31-day month.]]
thumb|right|320px|Knuckle mnemonic for the number of days in each month of the [[Gregorian calendar. Each knuckle represents a 31-day month.]]
A mnemonic device ( ), memory trick or memory device is any learning technique that aids information retention or retrieval in the human memory, often by associating the information with something that is easier to remember.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).