-Who was Bose?
-What is the Bose-Einstein condensation phenomenon?
-Why the Bose-Einstein condensation is puzzling at the first
sight?
-Why the Bose-Einstein condensation temperature is not very-very
small?
-Why the ideal gas picture is appropriate for liquid 4He?
-Does solid 4He exist?
-What is He II and what is He I ?
-At which temperature there is ONLY He II in the 4He liquid?
-At which temperature there is ONLY He I in the 4He liquid?
-At which temperatures there is MAINLY He II in the 4He liquid?
-At which temperatures there is MAINLY He I in the 4He liquid?
-Under the Bose-Einstein condensation temperature which
component of the 4He liquid is
superfluid?
-Why He II is superfluid and why He I is not?
-Under which conditions He II is does not behave like a
superfluid?
-From quantum mechanical point of view what is the main
difference between 3He and 4He?
-Can 3He become superfluid?
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