The Biggest Ideas in the Universe | 4. Space

The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody.

This is Idea #4, "Space." We talk about what is meant by three-dimensional space, why it might be three-dimensional, and why space exists at all. Why do we live in position space, rather than in momentum space, anyway? And what's so important about "locality"?

#science #physics #ideas #universe #learning #cosmology #philosophy #math #space #locality #dimensions

[hero]

Thanks Sean, for putting out these videos. We often take for granted how the internet grants us a wealth of knowledge at our fingertips, but it's like you're literally giving us a 1-on-1 lesson on these topics from the comfort of our homes. I find them incredibly interesting & informative.

[vansdan.]

These videos are exactly what I need. I could listen to you talking about science for hours, and you're granting me that ability; thank you!

[avrenna]

I love how relaxed and friendly these are. Check out the phenomenal sound effects at 16:43. :)

[soulremoval]

so grateful the internet exists, letting people like Dr. Carroll and Dr. Greene give these amazing lessons.

[sandrasandra]

Thank you dr Carroll, great lessons! High school made me hate physics, now I love it! Thank you
for using your intelligence, your knowledge and skills to make the world a better place

[veroosh]

I showed this to my dad and it turns out he's a fan too. His words, "he's a really great teacher." I agree.

[christopher]

Sean, the production quality paired with your concise communication style makes this series an invaluable asset to the physics/cosmology community. We sincerely appreciate the time, effort, and thought you invest in these learning tools. All the best to you, Mr. Carroll.

[archaicentity]

This is genuinely one of the biggest ideas in the universe: "Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space." - Douglas Adams

[johnphil]

Can we expect your next book: "The Biggest Ideas in the Universe". Much deserved one.

[TheJonlamb]

I’m trying to “wrap” my head around thinking in four dimensions, but the idea seems to pass right by. Oh wait...

Great video! Thanks for making this quarantine interesting.

[danstrtelagergren]

You are making the lockdown bearable, and through this video series reaching people all over the world. Sean, keep spreading knowledge to the world! It’s your gift! Thanks from Norway!

[drwaynebuck]

To sum up - space is the thing that enables stuff to bump into other stuff. So without space we wouldn't have to social distance!

[PavaniGanga]

Thank you! Only one physics course decades ago. It took me twelve hours, reduced playback speed, pausing the subtitles, multiple repetitions, and so much scratching my head, mulling my notes, and wrinkling my math-challenged brow. But I finally pulled through. I a 73 yo retired nurse was motivated, because you make the subject so interesting! (The other videos were much easier for me, but for some reason the Hamiltonian was tough.)

[dizy]

Sean what you dont get is this is extremely important... you do these to educate and expand minds .... even if only 500 ppl watch these ... idk man I've spent years reading physics books ...what you are doing breaking it down and keeping it real ... is massive ... if I had these 20 years ago ... my life would be different... thank you is all I can say

[veroosh]

This is brain candy - just in the first five minutes you've explained several concepts in a totally unique way I have never heard them explained before.

[edmeko]

Sean, what you are trying to do here for all of us trying to learn about this Universe is really fantastic. Each episode gives me another small window into what is happening around me every day. Knowledge of the immense space in which I am swimming. Thank You so much. I also enjoy many of the episodes in Mindscape.

[tonib]

Thankyou Professor Carroll, not just for the maths but for also being a decent person exactly when we need it. T.B from the U.K.

[jcliggett]

Great series! I love that you bring up questions to which you don't have an answer, and even say "maybe one of you knows the answer". Great way to entice budding physicists to explore the ideas that interest them!

[BishopNE]

Sean, thank you SO MUCH for the free education. You are my favorite professor. We loved you on Joe Rogan as well. I wish you and your family the best!

[supersleeper]

The quality of content here and your podcasts are a massive contribution to science education. Thank you. May God bless you with a long and healthy life. It is a privilege to be alive in a time when access to this knowledge from such a deep knowing perspective is accessible.