They are saying that the top quark is being produced one at a time, rather than in pairs (IAAP). It's actually subtle -- what had been observed before were 2 top quarks emerging from a gluon. Now they have observed one top quark (and another quark) emerging from a W-boson. Basically. This is not a major discovery, but it is another important showing off of the 'standard model' working very well at the energies we have so far probed.

Oh, and about isolating quarks. You cannot isolate a quark outside a hadron, but you can 'detect' the quark by observing the hadrons and leptons that it decays into, since they leave a distinct signature. The top quark is special because it decays before it even forms a hadron with other quarks.

I'm really surprised by the comments here, because I haven't seen anyone mention the writing. What killed this movie for me was the dialog; by the end of the movie I was blushing in embarrassment at how bad some of it was. Anyone else feel this way? I found the first 20 minutes of the movie extremely compelling (the visuals, the aesthetic, the editing, the cinematography were all fantastic), but as it went on I grew less and less enthused. I followed the plot fine, and although I enjoyed the 'watchmen' universe, I found the plot line that was mainly present in the second half of the movie pretty poor, by movie standards. Another thing I haven't heard anyone mention negatively was the sex scene. I honestly couldn't tell if it was meant to be serious or not -- it seemed so over the top to me that I thought it might be a joke. Overall I give the movie a B+.