The first of the Noble Gases, Helium is named from the Greek root helios, meaning sun. As a gas it is buoyant in air, entirely benign in the body, and does not freeze at any temperature we can devise. Her emission spectrum is a rosy vermillion. Helium is useful for scientific experiments into superconductivity – the absence of electrical friction – and as a liquid it is a superfluid which will climb the walls of its container to escape. She is effortlessly powerful, radiant, benevolent, and not a little "above it all." The opposite number to Radon.