Try it: (click image above, then type your search term)
* Google retrieves results by trawling the Web, comparing search terms with website content and displaying pages that match. Google doesn't understand our search; nor can it provide any information that hasn't already been published by a third party. In other words, it can answer only the questions that have already been asked, and answered, by content providers and Web publishers.
* British mathematician Stephen Wolfram describes WolframAlpha as a "computational knowledge engine". Not only does it understand the question, it has the mathematical, computational ability to work out an accurate answer. It's primed to answer factual questions related to financial and economic statistics, cooking, music, geography and much more, questions that haven't necessarily been answered by somebody else.
So ... rather than looking up the answer to your search, WolframAlpha figures out what your search term means, looks up the necessary data to display search results as if answering a question, computes many answer, designs a page to present the answers in a pleasing way, and sends the page back to your computer. Interesting?
