[SOLVED] friction

[colleen]

Is there any such thing as a frictionless surface?

[Zimm]

Well, there are superfluids which are considered frictionless unto themselves, see
http://www.aip.org/physnews/graphics/html/helium3.htm
http://www.egglescliffe.org.uk/physics/supercond/supfluid/superfluids.html
http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&safe=off&q=superfluidity+frictionless&btnG=Google+Search