What�s the most difficult science problem you�ve had to visualise and make real?

Melted Carnagesubhead : Abstract Borg sculpture body : This is from the episode Q Who? where Q takes us to encounter the Borg for the very first time. We needed a shot that went onto the main viewer, where the Borg ship heals itself from a phaser blast. And we had a model maker put this together for us, and we had enough for five takes on the melted portion. And what we did is we had welding torches just out of frame with the camera, and they would melt the plastic and shooting it on 35 millimetre motion picture film, we just ran it in reverse so you�d see this kind of melted carnage come back into being a perfect thing. And after the five takes, I had it in my hand and was about to throw it in the dumpster when I realised, �Well, this is a little too cool to throw away, I�ll save it.� And then the model maker put it in a plexiglass case for us to keep it dust free. It�s a good piece of found art. And everybody that comes in says, �What is that thing?� And then, when they find out, they think it�s a fairly cool object.