Tim Berners-Lee worked at CERN. It's a science institute and he was developing a way for all the scientists to share their information using 'hyperlinks'. He then went on to create what we now know as http and html (although there were other people involved obviously).

One of the biggest things at CERN is the particle accelerator - massive thing!

They've been doing some major new work on it recently - take a look at this recent article on BBC News (there's a video link in the top right as well)

http://news.bbc.co.uk/1/hi/sci/tech/4327161.stm

I don't think it's just Nuclear research - all sorts goes on their to work on testing out theoretical physics in practice!

Cheers,

Andy