What does the inside of an Egyptian tomb smell like? What does a ghost smell like?

"Smelling is believing," according to the new Google Nose Beta product that allows users to do web searches by smells. That is, if you're a sucker for Google's latest April Fools' Day prank.

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Reeking of puns, Google released a video for its new "scentsation" that lays on thick the tech geek speak about the products "mobile aroma indexing program" with a "15 million sentibyte database of smells."

The prank even comes with its own website, www.google.com/nose. Thankfully, for users who click through to find search results for Dumpsters, the promises of "photo-auditory-olfactory sensory convergence" are a joke.

Prior Google pranks, included the 2011 Gmail Motion, promising the ability to control your emails with your body.