| Unlike low-temperature superconductors, which are metals, high-temperature superconductors are insulators in their normal state. |
| This painting portrays in great detail a skeleton-like electrical power transmission tower with dozens of identical ceramic insulators. |
| Liam had climbed 30 ft up the pylon and came into contact with high voltage insulators. |
| Snow pack and other natural insulators can keep the frogs sufficiently warm during their winter hibernation. |
| Did you know that overweight people tend to act as insulators and keep heat in? |
| Arctic and boreal mosses, for example, are effective insulators that minimize heat transfer from the soil surface to the underlying soil. |
