"How is helium produced"

'How is Helium produced?' Production: Although Helium is one of the most common elements in the universe it is a rare gas on earth. It exists in the atmosphere in such small quantities (less than five parts per million) that recovering it from the air is uneconomical. Helium is produced as a by-product of the refining of natural gas, which is carried out on a commercial scale in the USA and Poland. In these …

…including the ones in the Macy's Parade) and Airships. It is also used in Welding, and as a heat transfer medium. Liquid Helium is an ideal source of cold for superconductivity and for low temperature applications. In particular liquid Helium enables the development of the high strength magnetic fields required in NMR (Nuclear Magnetic Resonance Imagery) Spectroscopy and MRI (Magnetic Resonance Imagery) medical body scanners. Liquid Helium is also used extensively in low temperature research.