It’s strange how some of Google’s most innovative products always seem to be introduced on April 1.

Google introduced Google Nose beta today, which taps into Google’s Knowledge Graph to help users search for smells they encounter.

With Google Nose, Google says you can “go beyond type, talk, and touch for a new notation of sensation.” Google’s “Aromabase” contains over 15 million scentibytes.

Here’s what the Knowledge Graph results look like with Google Nose:

The technology utilizes Android’s ambient odor detection feature. Clicking “Smell” will transmit the smell for you.

As explained in the video, Google Nose is even capable of answering: What does a ghost smell like?

Google Nose would probably tie in well with that brain interface Matt Cutts was recently talking about.

This is not the first time Google has worked with the sense of smell. In 2008, on April 1, Google introduced Scratch and Sniff ebooks.

Try Google Nose here.