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.
Paramagnetism: Materials such as sodium, oxygen, iron oxide (FeO or Fe2O3), and platinum are paramagnetic. They are affected somewhat more strongly than diamagnetic materials, they become polarized parallel to a magnetic field. Thus, in a nonuniform magnetic field, they feel a force towards the higher field region.