Search found 2 matches

by PhysProf
Sat Jun 22, 2013 2:57 am UTC
Forum: What If?
Topic: What-If 0050: "Extreme Boating"
Replies: 110
Views: 30497

Re: What-If 0050: "Extreme Boating"

If so, then you should still be able to paddle through a lake of the stuff. The lake won't "grab" the paddle at all, so you'll have less traction to push the fluid around, but you will still be deflecting molecules as you intersect the paddle with their direction of motion, changing that ...
by PhysProf
Thu Jun 20, 2013 3:05 pm UTC
Forum: What If?
Topic: What-If 0050: "Extreme Boating"
Replies: 110
Views: 30497

Re: What-If 0050: "Extreme Boating"

One thing left out of the liquid helium section: when a superfluid (below 1.9K), it has zero viscosity. That will make it impossible to row your boat - the oars will slip through the LHe without any resistance at all. No resistance --> no force on oar, by Newton's 3rd law. LHe is *very* neat stuff: ...

Go to advanced search