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"What does the inside of an Egyptian tomb smell like? Google Nose" - so goes one of the taglines for the search giant's latest product, Google Nose beta.
A mobile aroma indexing progam has been able to amass a 15 million sentabyte database of smells from around the world, the company explains in the clip below.
By intersecting photos with infrasound rays, Google Nose beta temporarily aligns molecules to simulate a particular scent:
Find out more at Google.com/nose.
A busy first day of April development schedule has also seen Google release Gmail Blue, a new version of its webmail featuring all-blue characters, buttons and menus.
The clip above explains the all-blue interface was always part of the plan - but technology has only caught up with the original Gmail vision.
The search giant has also announced YouTube has been an eight-year effort to find the world's best video.
The service will shut at midnight for judging by a panel including YouTube celebrities and the most prolific commenters, then reopen in 2023.
Plus a new Treasure layer in Google Maps: