The balloons are made of latex filled with either helium or hydrogen. Examples are bubbles formed at the bottom of a champagne glass and helium balloons. The craft is essentially a small yellow lifeboat attached to 370 balloons filled with helium. This is followed by the ionization of the hydrogen and helium atoms. The result would be an intensely hot stream of hydrogen and helium gas. Superfluid helium-4 is the superfluid form of helium-4, an isotope of the element helium. It is composed largely of hydrogen and helium. Hydrogen has a range of flow rates that are comparable to helium in efficiency. Ib or type Ic supernova due to the lack of hydrogen and possibly helium. Superfluid helium-4 has substantially different properties from ordinary liquid helium. Micah, a man travelling by helium balloon, arrives shortly thereafter. Fluorine forms compounds with all elements except neon and helium. In the upper part of the chromosphere helium becomes partially ionized. This was intended to be filled with inert helium. I, a tweeter whose plasma was generated from helium gas.