Iron Nitrides: Powerful Magnets Without The Rare Earth Elements

Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny, shiny …

WIST - Santayana, George | "Aversion from Platonism" (1914-18), Soliloquies in England and Later Soliloquies, #5 (1922)

Repetition is the only form of permanence that Nature can achieve.