granpa Messages 2,268 Reaction score 7 Thread starter Jun 14, 2009 #1 is the effective mass of a superfluid helium atom zero?
Vanadium 50 Staff Emeritus Science Advisor Education Advisor Gold Member Dearly Missed Messages 35,014 Reaction score 21,725 Jun 14, 2009 #2 No. (The system won't seem to accept a perfectly reasonable one word reply)