Could we one day observe particles without breaking them? We answer a particle pacifist's question and discover why clouds stay up. Does everything really float? We discuss the mystery of electrons: how big are they? We explore JWST and think about the problem of primordial galaxies. What does this discovery change in our understanding of the universe?
Is space an emergent property of the universe and not fundamental? Discover how quantum entanglement can weave the fabric of space-time and why it may be time to rethink string theory. We discuss time dilation on a trip to Mars, what to do when you have an untestable hypothesis, and how Einstein tested the equivalence principle.
Why do photons always travel at the speed of light? What does time look like at the speed of light? Learn about the solar neutrino problem and how neutrinos decay. We also explore the dimensionality of parallel lines and how they can, in fact, intersect. All this and more in another Grab Bag Cosmic Queries!
Thanks to our patrons Jagan, Stephen Abraham, Dalton Gordon, Brent C, Alexander Miller, t K and Bob Morrison for supporting us this week.
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About the footprints surrounding Neil in this video:
/"Black Swan" and /"White Swan/" limited edition screen prints by Coast Salish artist Jane Kwatleematt Marston. For more information on this artist and her work, visit the Inuit Gallery in Vancouver. https://inuit.com/
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About StarTalk:
Science meets pop culture on StarTalk! Neil deGrasse Tyson, astrophysicist and director of the Hayden Planetarium, his comic book co-hosts, celebrity guests and scientists discuss astronomy, physics and everything else about life in the universe. Don't be discouraged!
#StarTalk #neildegrassetyson
00:00 – Purse time
00:45 – Could we observe intact particles without particle accelerators?
3:50 p.m. – If gravity makes everything fall, how do the clouds stay up?
09:54 – Is “Particle” a placeholder name?
12:50 p.m. – Could JWST’s primordial galaxies be a window into another universe?
6:35 p.m. – Why do we think space is emergent and not fundamental?
24:55 – Time Dilation and Journey to Mars
28:54 – If string theory is so impossible to prove, why are we still trying to prove it?
37:32 – If a photon is a particle, can't it stay still? Why does it always move at the speed of light?
42:37 – Parallel lines in the Fourth Dimension
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