You Use Quantum Physics to Smell

Your nose uses quantum tunnelling to smell! This crazy conclusion comes from the latest interpretations of the evidence about how our smell receptors detect odour molecules. This video summarises the two models of smell: shape theory and vibration theory, and concludes that you need both to explain how we smell.

#quantum #biology #DomainOfScience

Here are some other links you can look at if you want to find out more:

To err is to human, and I human a lot. I always try my best to be as correct as possible, but unfortunately I make mistakes. This is the errata where I correct my silly mistakes. My goal is to one day do a video with no errors!

1. I misspelled Planck's Constant and wrote Plank's constant. Silly me!

Also, if you enjoyed this video, you will probably like my science books, available in all good books shops around the work and is printed in 16 languages. Links are below or just search for Professor Astro Cat. They are fun children's books aimed at the age range 7-12. But they are also a hit with adults who want good explanations of science. The books have won awards and the app won a Webby.

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[domainofscience]

If you don't know why you are subscribed to this channel, I just changed the channel name from DominicWalliman, so you probably subscribed after my Map of Physics or Map of Mathematics videos. Even though I changed the name, everything else is the same, and I'll be doing more of the same kind of videos! Sorry for any confusion.

[ricoreyes]

I can honestly say I learned something completely new today.

Great video, thanks!

[_buns_]

Your method of visually presenting everything does an amazing job of hammering in concepts and better understanding it all. Keep it up!

[Majoen]

"because we can smell in the dark" is such a great line out of context

[athoye]

You should've mentioned that the both Vibration and Quantum tunneling theory explains why we can't smell relatively cold objects.

[JonUhhThan]

you should make a map of engineering. I feel like it'd be really interesting

[silnalapa]

As a med student, I really appreciate that you explained the complex concepts in such an entertaining way. I recently was taking my receptor classes of physiology and I was particularly interested in sense of smell and that how little we know about it. Great video.

[KleRoi]

dude your science communication is ON POINT!

[theWinterWalker]

I can't believe u haven't found your channel before now! As soon as I'm able I'm buying some posters, these are AMAZING 🤩

[pushkarlakhe]

Ohh my god ... I have been searching about Smell for months now and did not understand a thing .. This video is godsend !!

[TheOwlGilga]

That also means taste is effected by quantum physics, it's been stated quite a lot that heavy water tastes sweet.
Also with mirrored molecules, it should make a tiny difference how they are since the atoms outside of the benzene ring interact with each other in a very small manner. Or as you said, they just do both.

[Hsquared]

After watching the science part of YouTube for about 6-7 years, I had never learned this before and you explain things so well it's amazing. Keep up the great work!

[valeriaitzelarteagamuniz]

This is actually one of the best videos I've watched ever. Thanks for your time and good explanations always

[tammy]

I discovered this channel today and I was totally impressed by all the science videos. I'm going to be a college freshman by this fall, and my major is probably physic or applied physics. Physics has been a huge part of my life since my junior year of high school and I found it extremely fascinating and enthralling. I just wanted to say thank you so much for making all the videos, keep up the good work! (tbh, all these videos should be on YouTube trending)

[evasara]

I love your videos and the posters are so good! Never did I have a clearer picture (quite literally) of all kinds of sciences. This is amazing, thank you so much for divulging knowledge to those who are not experts in this field, great work.

[narrotibi]

Your channel is kind of a gold nugget, which I've found recently.
Great work, waiting for more!

[MinionNoMore]

👋 Hello I am a request:
'Map of Philosophy' por favor
:)

[caraphelan]

Just finished chapter 5 of “Life on Edge” and needed additional help to understand inelastic quantum tunnelling. This is such a great video and animation to visualise the mechanics covered in that chapter, love it!

[karinwhitwood]

Love the video, thanks! I wonder how you would explain varying smelling ability. For example, dogs can smell seizures coming - presumably chemical changes in the body prior to a seizure. But, even staying within the human species, there are people with more adept senses of smell. More receptors? Ability to sense different vibrations? Interested in your thoughts. Thanks again - love the mapping.

[KillerIguanas]

Fantastic video, interesting as always. Keep it up!