PBL - I say you were right about 'muppets'. Anyone got a link to the NASA muppet forum?
LH2 - Let me know when the tower is forecast to fall in to the Seine on your reference systems - then I'll take notice, I promise. Until then....................dear oh dear!
On the other hand, the fact that I didn't need to step out of the way of the leg of the tower as it rushed past MIGHT have simply meant I am in the same reference system. I had not thought of that. Tisk tisk.