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Alien Heists and Scimitars with Neil deGrasse Tyson & Charles Liu | Cosmic Queries

2023-02-18 Science & Technology
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Description

What if the laws of physics were different? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly answer grab bag questions with astrophysicist Charles Liu about alien heists, gravity, and space exploration. Is there a way to manipulate time? Is time a constant? Learn about time as a dimension, scimitars, and time as a resource. What would happen if advanced aliens could steal the sun? Would we fall into orbit around Jupiter? We consider the possibilities… Which laws of physics could we change that would have the least effect on everyday? What if the Hubble constant was different? Or if Newton’s laws were slightly tweaked? Plus, learn how one body of mass can have multiple strengths of gravity. When will Earth’s tectonic plates stop moving? We also discuss why we go to space instead of the many unexplored parts of the ocean. How does weather affect a football match? We explore the impact of weather on sports and how Neil, Chuck, and Gary would do in a survival situation. Is it faster to run or dive to a base in baseball? Find out all about physics and astrophysics in another Grab Bag Cosmic Queries episode! 00:00 - Grab Bag 6:35 - Time as a dimension 12:01 - Could an advanced alien steal the sun before the other side of Earth can notice? 18:05 - Which of laws of physics could you change and have least effect on everyday? 23:46 - Could a body of mass have two different strengths of gravity? 26:35 - How long before techtonic plates stop moving? 29:50 - Why don’t we have a deep sea base? 33:50 - How does the weather affect a football match? 40:20 - How expertise in physics might help with survival? 46:40 - Is diving or running faster? Get the NEW Cosmic Queries book (5/5 ⭐s on Amazon!): https://amzn.to/3dYIEQF Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #NeildeGrasseTyson

Top Comments (10)

@mikotagayuna8494 2023-02-20

Just when you thought Neil is such a know-it-all, you get blown away by Charles. No complaints. The banter is just so awesome to listen to.

134 8 replies
@arercee5528 2023-02-18

I’m trying to go to bed right now, you can’t just post videos titled “what if aliens stole the sun”

129 11 replies
@joelpainchaud4887 2023-02-21

I love seeing chuck’s progression from being the class clown to being the class clown getting complimented by the teacher.

100 10 replies
@Chemy. 2023-02-18

I love the fact that many people just ask questions no matter how the physics are because the idea is to exercise the mind, i remember making hypothesis and people just saying "no" because they don't understand the question and didn't know physics

82 5 replies
@StarTalk 2023-02-18

Want your questions featured in a future Cosmic Queries episode? Come join us on Patreon! http://patreon.com/startalkradio

76 24 replies
@joseimpact 2023-02-19

these 4 guys are national treasures . great episode

74 4 replies
@petersage5157 2023-02-18

I can't believe that I'm about to out-geek Charles Liu. "Double-edged sword" simply means that something "cuts both ways"; it has both positive and negative consequences. This phrase is attested to the late 15th century. Charles's story of Richard and Saladin is from Sir Walter Scott's _Tales of the Crusaders_ ca. 1825, but it reminds me of the Japanese story of Muramasa and Masamune. In a challenge to see which swordsmith made the most perfect blades, they both placed their finest swords in a river. Every leaf that floated near Muramasa's sword was drawn toward it and cut; every leaf that floated near Masamune's sword passed by completely unperturbed. Presumably, this was because Masamune's sword was so perfectly honed that it didn't disturb the current of the water flowing past it. Of course these stories are both apocryphal; Richard and Saladin never actually met and Muramasa and Masamune were not contemporaries. They're great stories nonetheless.

30
@lefenyalefenya324 2023-02-22

Charles is such a superb guest. May we please have him back again..

14
@johnnelson63 2023-12-01

This year’s Nobel Prize in Physics goes to Chuck Nice!

6
@Ssjgnolan 2023-02-19

Make the episodes longer :/ I need 2 hrs of this

5

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