Next to the vacuum, I'd guess the Nobel gases.
thomas Edison
Things like wood, paper and plastic are poor conductors of thermal radiation.
Superconductors have no resistance, making them the best conductors. Semiconductors have moderate resistance. Conductors have low resistance, making them better conductors than insulators, which have high resistance, making them the poorest conductors.
If Australia has elcetricity, you can.
The poorest conductor of electricity is typically rubber or glass, as they have very high resistance. The best conductor of electricity is silver, followed by copper, due to their low resistance properties.
metals
Pencil lead is the poorest electrical conductor among the materials listed. While steel and glass are poor conductors, aluminum is a relatively good conductor of electricity.
Metals are typically the poorest insulators because they have a high thermal conductivity, meaning they allow heat to pass through them easily. This is why metals are often used as conductors in electrical wiring to facilitate the flow of electricity.
Conductors
Rubber compound is one of the poorer conductors of electricity. That is why rubber tape is used in both high and low voltage splices.
Group 14 elements such as silicon or germanium generally act as semi-conductors. Boron, a group 13 element, normally acts as a dopant in semiconductors.
all metals are good conductors of heat and electric currents