London Bridge has already been rebuilt twice! But what happened to the bridges that came down? Also, explore a map of the big bang! http://www.bigbangregistry.com MinutePhysics is on Google+...
========== This has nothing to do with physics, but we're
all familiar with the nursery rhyme "LondonBridge is falling down, falling down, falling
down, London bridge is falling down, and wasrebuilt in Arizona." Wait, Arizona? THIS Arizona?
Yup! Here it is in Lake Havasu City, nearartificial Lake Havasu in the middle of the
Arizona desert.London, I think this merits some explanation.
I mean, in the early 1800s, when the already600-year-old London bridge - that's the one
that had all of the houses and shops on it- was on its last legs, it made sense to replace
it with the less-awesome but brand spankingnew "New London Bridge." But by the 1960s,
this new bridge was barely even 130 yearsold and already needed to be replaced because...