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.
Ferroelectric materials are materials that possess a natural charge polarization that can be reversed by an external electric field, known as the process of switching.he ferroelectric effect draws its name from ferromagnetism, which describes permanent magnetic materials based on iron that are found in nature. This is a bit of a misnomer, however, as most ferroelectric materials are not based upon the element iron.