Sorry if this is a well-known bit of trivia, I've just started watching Doctor Who very recently and I couldn't find this anywhere.
In the episode "Blink", the Doctor says the Weeping Angels are incredibly fast, but is it known exactly how fast they can be?
In some instances their speed (based on how far they moved and how long they had to do it) seems to be at least a few hundred miles per hour.
However, there are other instances where someone has their back turned for several seconds and they only move a foot or so. I suppose that could just be them choosing to move slower, but is the maximum speed known? Thanks!