Bok
12-29-2011, 03:12 PM
Chemists synthesize a five-crossing structure
More... (http://www.sciencenews.org/view/generic/id/337201/title/Molecule_ties_itself_in_a_complex_knot)
More... (http://www.sciencenews.org/view/generic/id/337201/title/Molecule_ties_itself_in_a_complex_knot)