4.7 • 1.1K Ratings
🗓️ 9 July 2023
⏱️ 60 minutes
🧾️ Download transcript
Click on a timestamp to play from that location
0:00.0 | These are the best tools that we have and when we measure it we get an answer that's somewhat different and the size of this tension or significance of the difference has grown over 10 years pretty steadily |
0:14.8 | so that we've reached, you know, more than 5 Sigma. |
0:18.6 | And through duplication of measurements other people have done with other techniques, what has of seems to depend on whether you start from the beginning shortly after the Big Bang or |
0:35.8 | whether you start from the present and you know a story shouldn't depend on which end of |
0:40.4 | the story you started that's how it looks to us and so that's why a lot of people |
0:44.7 | are suspecting maybe it's the cosmological model itself the story we tell ourselves |
0:48.8 | to connect the beginning and end. Welcome listeners. |
0:57.0 | Prepare for a mini master class in cosmology with another appearance |
1:00.3 | under the impossible of Nobel Laureate Adam Reese. |
1:04.6 | The Hubble Constant is a pillar of our understanding of the universe. |
1:07.8 | Since the observation is made by its namesake, Edwin Hubble, in 1929, the galaxies were |
1:11.8 | moving away from each other, the Hubble constant has been |
1:14.6 | persistently measured and confirmed. In 2011, Adam Reese shared a Nobel Prize by showing |
1:20.9 | that the expansion rate was also accelerating. |
1:24.8 | Since then, Dr. Reese has persevered in his quest to determine why, depending on how it's |
1:29.6 | measured, the rate of expansion varies far beyond the margin for error. |
1:34.0 | Why? Is there a problem with the cosmological principle, a pillar of cosmology? |
1:39.0 | What other forces of nature could be at work? |
1:41.0 | In this fast-moving discussion, Brian and Adam explore how the |
1:44.6 | Hubble tension is being measured using the world's most advanced |
1:46.8 | observational instruments on Earth and in space. Find out what drives precision |
1:51.6 | science forward and keeps Dr. Reese motivated even after receiving the |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from Brian Keating, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of Brian Keating and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2025.