Tuesday 20 July 2010 7.27am
I was watching that red crane working on New London Bridge House just now and as it turned it appeared to sway dramatically so I lined it up with a building in the background for the next turn and the concrete blocks on the rear of the crane seemed to be pulling it way off vertical. It looks as if it could collapse if it was turned too fast with no weight on the other end to counterbalance. The things you notice over a cuppa and a slice of toast.
And the cranes on the Shard often have what appears to be a giant manhole cover suspended overnight.