House Umber - Family members are known to be really big and tall, often over 7 feet. Very loyal, feud with the wildlings. House Karstark - Have Stark-blood in their veins, descendants of the Starks of Winterfell. Large in size and hot blooded.
The element Nickel (Ni) is one of the few ferromagnetic metals. Ferromagnetic means they are attracted to magnets and can be magnetized themselves. Most metals arenât magnetic with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
Ferrite may refer to: Ferrite (iron), iron or iron alloys with a body centred cubic crystal structure. Ferrite (magnet) (e.g. Fe3O4 or BaFe12O19), ferrimagnetic ceramic materials used in magnetic applications. Ferrite bead, a component placed on the end of a data cable to reduce interference. Ferrite core, a structure on which the windings of electric transformers and other wound components are formed. Bismuth ferrite, a promising multiferroic material.