Explore the intricacies of the LHCf detector, a precision forward physics instrument at the Large Hadron Collider, in this comprehensive 53-minute lecture by Oscar Adriani. Delve into the design, functionality, and scientific objectives of this specialized detector, gaining insights into its role in advancing our understanding of high-energy particle physics. Learn about the unique capabilities of LHCf in studying forward particle production and its implications for cosmic ray physics and particle interaction models at extreme energies.