31 Subatomic Stories: Why are extra dimensions possible?

Показать описание

Of the four known forces, one of them stands out as different. Gravity is much weaker than the other known forces and nobody knows why. In this video, Fermilab’s Dr. Don Lincoln describes one possible explanation for the weakness of gravity – the existence of extra dimensions of space.

Long video: Extra dimensions

Observation of weak force in atoms:

Fermilab physics 101:

Fermilab home page:

Рекомендации по теме

Комментарии

No matter what happens in my day, I can't help but smile when I see you doc, I guess it's because physics is everything and that matters :)

Jabranalibabry

I like how you answer the tough questions, to the point and intellectually honest.

Justwantahover

Dr. Lincoln and Fermilab, thank you for making all this wonderful and often esoteric information about the fundamental nature of our universe so accessible to even folks like me who aren't knowledgeable about either math or physics! It really is a joy to watch these videos and get informed about these fascinating topics!

andrewjacks

11:00 Thank you! This is such an important point even - especially - in school. When you have the sort of teachers where students leave school and say they hate physics (maths, ...).
The proudest moment I think I ever had was when some (high-school) students, after the year was done, came to me and told me they liked coming to my physics class (and this was not the "physics nerds" but "normal" students). I hope I made an impact on their lives that they won't be parents that tell their children that "they also hated physics in school and it does not matter if their child is good at it".

whuzzzup

Fermilab is a national treasure, we are very fortunate to have all our national laboratories. Dr. Lincoln ably represents them, in my never humble opinion.

markblocker

Knowledge isn't a destination, wisdom is applied knowledge, the journey is everything - thanks for taking us forward with each episode - you are the best!!!

perrymnazjurgens

Dr Lincoln: after discussing hypothetical models of physics, can you also cover some of the famous failed ideas, and why they has failed?
These would be very educational both as case study, and also because time to time I see some of these resurfacing in some arguments.

juzoli

Hi Dr. Lincoln, thanks for another great episode.
Instead of just extra spatial dimensions, what would it be like if there are extra temporal dimensions? What would an extra temporal dimension even mean and are there any theories which talk about them?

adithyar

You remind me of Jack Horkheimer and I always half expect you to end your videos with "Keep looking up!" Your videos are great and I really find it a treat to get to hear from someone really at the heart of new research.

jamesroseii

It would be very nice if gravity had something to do with the weak force
Usually the forces cancel from a distant viewer.
But since electrons are usually orbitating an atom about 1% speed of light.
The relativistic time would make electrons be pulled by other atom protons and vise versa, creating a universal pull.
This could be why gravity is so weak.

I know the weak force has a short range and many other thing, i just found the idea cool.

thegustavodag

I hope this series keeps going forever

"whisper at a rock concert" - I *love* this analogy. Thank you for the concept upgrade!

Arc

Your a brilliant commentator, one who I have always enjoyed receiving educational dialogue, within your presentations.

williamkacensky

I’ve heard it in documentaries that the small dimensions are spacial dimensions, and that there are 8 or 9 spacial dimensions and one temporal dimension. I’ve always wondered why these were classified this way, and time isn’t treated just like another dimension. Thanks, love the show!

ryanmcmenamim