How smell works | Unexplainable

Believe it or not, scientists still don’t know exactly how the sense of smell works. But they’re looking at how powerful it is — dogs can actually sniff out cancer and many other diseases — and they’re trying to figure out how to reverse engineer it. In fact, one MIT scientist may have built a robot nose without completely understanding how his invention works. Sign up for our newsletter: http://vox.com/unexplainable-newsletter Show transcript and articles: vox.com/unexplainable Email us! unexplainable@vox.com Article on the quantum nose theory: https://bit.ly/3clurfs We read every email. Learn more about your ad choices. Visit podcastchoices.com/adchoices