Isotopes of helium a thousand times lower than helium-4 (2.17 K). This difference is explained by quantum statistics, since helium-3 atoms are fermions, while helium-4 atoms are bosons, which condense to a superfluid more easily. The most common isotope, , is produced on Earth by alpha decay of heavier radioactive elements; the alpha particles that emerge are fully ionized nuclei. is an unusually stable nucleus because its nucleons are arranged into complete shells. It was also formed in enormous quantities during Big Bang nucleosynthesis. Terrestrial helium consists almost exclusively (99.99986%) of this isotope. Its boiling point of 4.2 K is the lowest of
The Lowest of the Low nights at Lee's Palace in Toronto to celebrate the release of a new remastered edition of "Shakespeare My Butt" on Pheromone Recordings. They also announced plans for a tour in 2011 to mark the 20th anniversary of the album. On December 6, 2011, the band performed a surprise set at the 30th anniversary party for The Only, the pub that inspired the song "Just About 'The Only' Blues" on their first album. The Lowest of the Low made plans to record their fourth album in the fall of 2013, although the departure of founding member Stephen Stanley halted these plans.