Stephen Wolfram says his new search engine will be 'a paradigm for the web'
BBC NEWS | Technology | Web tool 'as important as Google'
A web tool that "could be as important as Google", according to some experts, has been shown off to the public.
Wolfram Alpha is the brainchild of British-born physicist Stephen Wolfram.
The free program aims to answer questions directly, rather than display web pages in response to a query like a search engine.