Bok
03-06-2013, 09:52 AM
Physicists use 3-D printing and tiny bubbles to capture twisted-up water
More... (http://www.sciencenews.org/view/generic/id/348728/title/Vortex_gets_tied_in_knots)
More... (http://www.sciencenews.org/view/generic/id/348728/title/Vortex_gets_tied_in_knots)