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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.
The "computational knowledge engine", as the technology is known, will be available to the public from the middle of May this year. Read more>>