We're sunsetting PodQuest on 2025-07-28. Thank you for your support!
Export Podcast Subscriptions
cover of episode Consider a Spherical Cow with Lara Anderson

Consider a Spherical Cow with Lara Anderson

2025/6/17
logo of podcast StarTalk Radio

StarTalk Radio
AI Deep Dive AI Chapters Transcript
People
C
Chuck Nice
L
Lara Anderson
N
Neil deGrasse Tyson
以主持《宇宙：时空之旅》和《星谈》等科学节目而闻名的美国天体物理学家和科学传播者。
Topics
Lara Anderson: 弦理论是一个试图协调爱因斯坦的广义相对论和量子力学的尝试，它是一个一致的量子引力理论。虽然它可能不是我们宇宙中量子引力运作的方式，但至少它是一个理论上的游乐场，我们可以在这里提出关于量子引力的问题。我试图将爱因斯坦的广义相对论纳入量子描述，因为广义相对论本质上是经典的，不适用于粒子物理学中的量子不确定性。因此，我认为爱因斯坦的理论在微观层面上应该演变成某种量子力学的东西。此外，弦理论认为粒子不是点粒子，而是具有一定长度的弦，弦的不同振动模式对应于不同的粒子。 Neil deGrasse Tyson: 我们试图将爱因斯坦的广义相对论纳入量子描述，因为广义相对论本质上是经典的，不适用于粒子物理学中的量子不确定性。因此，我认为爱因斯坦的理论在微观层面上应该演变成某种量子力学的东西。此外，弦理论认为粒子不是点粒子，而是具有一定长度的弦，弦的不同振动模式对应于不同的粒子。 Chuck Nice: 广义相对论和量子力学之间一定存在不一致之处，这导致我们试图协调它们。弦理论需要额外的维度才能成立。

Deep Dive

Chapters
String theory attempts to unify general relativity and quantum mechanics, but requires extra dimensions to function. The theory proposes fundamental strings as the building blocks of matter, whose vibrations determine particle properties.
  • String theory aims to reconcile Einstein's general relativity with quantum mechanics.
  • It posits that fundamental particles are one-dimensional vibrating strings.
  • The theory requires extra dimensions, which are compactified and small to be consistent with our observations.

Shownotes Transcript

What is string theory, really? Why does it need extra dimensions? Neil deGrasse Tyson and comedian Chuck Nice welcome theoretical physicist and mathematician Lara Anderson to guide us through string theory, higher dimensions, and finding a unifying theory of everything.

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/consider-a-spherical-cow-with-lara-anderson/

Thanks to our Patrons Rachel Burns, GTH, Ali Al-Mubarak, Tinashe Munyaradzi Majada Duma, Lester Hairston, Shelbi Frowein, Daryl Sheppard, Carlos Fernandez, Bryan Skelton, SHONE JOE, Beverly Jo, Dr. Rob Bryan, Mark Swehla Jr, Jake, Jake, Parvaneh Alavi, Caleb Rohrer, Cryosminitar, Joe Oggier, A Tedla, Chris Crisco, Olga, Colby Hyde, Trevor Morrison, Elizabeth P, Adam Haynes, ice age, craig henry, McKenna Lineback, Emily Martinez, Laura V Pagliaro, Tactalpotato750, Raymond Hal Bonnin II, Vladlen Kogan, Matthias Sabourin, Allan Watson, Jimmy Rose, Joe DiRosa, Cal Mathison, Lex Hayes, Quince Poston, Kathleen OBrien, Ryan Enright, Mahi, and Thomas S. for supporting us this week.

Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus).