| They lie in a grey area between conductors and insulators whose boundaries are somewhat unclear, and it is this ambiguity itself that is useful. |
| Unlike low-temperature superconductors, which are metals, high-temperature superconductors are insulators in their normal state. |
| Snow pack and other natural insulators can keep the frogs sufficiently warm during their winter hibernation. |
| When the fencer is correctly earthed, all insulators and connections are correct and there is no vegetation growth on the wire. |
| Did you know that overweight people tend to act as insulators and keep heat in? |
| This painting portrays in great detail a skeleton-like electrical power transmission tower with dozens of identical ceramic insulators. |
