Astronomy Picture of the Day . Pauli Exclusion Principle: Why You Don't Implode . ... 28.02.2010 . ... The other type of matter, bosons , do not have this property, as demonstrated clearly by recently created Bose-Einstein condensates . Earlier this decade, the Pauli Exclusion Principle was demonstrated graphically in the above picture of clouds of two isotopes of lithium -- the left cloud composed of bosons while the right cloud is composed of fermions . ... February 2010 . ... 2009 2010 . ...