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ultra-cold rubidium (These clouds of atoms are what are called as Bose-Einstein Condensates (BEC), a state predicted by Einstein in 1925 from the work of the Indian scientist S.N. Bose. This state was observed in a Nobel Prize-winning work in 1995 in a gas of ultra-cold rubidium atoms.  thehindu.com MichaelBurov); supercooled rubidium (MichaelBurov); super-cooled rubidium (MichaelBurov) | |||