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cover of episode Cosmic Queries – Before the Big Bang

Cosmic Queries – Before the Big Bang

2025/3/11
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StarTalk Radio

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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
Neil deGrasse Tyson: 我认为无限的概念没有明确的答案。关于大爆炸之前存在什么,我们一无所知。我们甚至不知道如何通过实验验证我们的想法。但是,当我们根据广义相对论和量子物理学的方程式回溯时间时,我们会产生一个能够产生宇宙的实体,可能是无限数量的宇宙。我们称之为多重宇宙。 关于超导超级对撞机(SSC)项目的取消,我认为这是一个错误。如果SSC项目没有被取消,我们可能会在几十年前提早发现希格斯玻色子,并可能取得其他科学突破。冷战的结束以及其他政治因素可能导致了SSC项目的取消。 关于时间旅行,我认为我们无法回到过去,因为改变过去可能会带来无法预料的后果。时间的流逝是相对的,只有外部观察者才能感知。 关于星尘,我认为我们呼吸的空气中含有星尘的成分。我们是由恒星中锻造的元素构成的,这些元素在恒星生命结束时通过超新星爆炸散布到整个星系中。 总而言之,科学探索是一个持续的过程,我们永远无法找到所有问题的答案。提出正确的问题比找到所有答案更重要。 Paul Mercurio: 我同意Neil的观点,无限的概念难以捉摸,大爆炸之前可能存在多重宇宙。关于SSC项目,我认为预算超支和冷战结束是导致其取消的主要原因。关于时间旅行,我认为回到过去是不可能的,因为这可能会改变未来。关于星尘,我认为我们都是由星尘构成的,这是一种诗意的说法,也是一种科学事实。

Deep Dive

Chapters
Neil deGrasse Tyson and Paul Mercurio discuss the implications of the canceled Superconducting Super Collider (SSC) project and how its completion could have advanced particle physics in the United States.
  • The SSC, if completed, would have been the largest and most powerful supercollider globally, surpassing the LHC.
  • Cancellation of the SSC project shifted the center of mass of particle physics to Europe.
  • The Large Hadron Collider eventually discovered the Higgs boson, often called the 'God particle'.
  • U.S. politics played a significant role in the cancellation, with factors including budget concerns and the end of the Cold War.
  • The LHC's discovery of the Higgs boson was delayed due to the SSC's cancellation.

Shownotes Transcript

What does it really mean for us to be made of stardust? Neil deGrasse Tyson and co-host Paul Mecurio answer fan questions about particle colliders, time travel, and what existed before the Big Bang. 

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/cosmic-queries-before-the-big-bang/)

Thanks to our Patrons John 73, BrianSmiley, Brian Johnson, TIm, Klaus Wagner, Cynthia A Stevens, Valentijn van tongeren, Jmcarman23, J Gonzales, Kaden Brown, Sam Spencer, BSM1989, Caleb, Cristian Gonzalez, Stephen Davis, Stefan Jones, Walt Krutzfeldt, Hazel, Lukáš Mašek, Andrew, Craig Haagenson, Jessi, Taj Orndorff, Jacob Hernandez, Keith Thienpondt, Dusty Salyer-Elliott, Ignacio Karacsonyi, Bradley Foster, Melissa Forlini, Seth Lotstein, Hamid Pourkasraei, Linda, Ali Mojabi, and Mahmoud Hassan for supporting us this week.

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