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= Reality is Not What It Seems ===
=== The Journey to Quantum Gravity ===
== Carlo Rovelli 2017 . Cedar Mill 503.143 ==
= Reality is Not What It Seems =
== The Journey to Quantum Gravity ==
=== Carlo Rovelli 2017 . Cedar Mill 503.143 ===
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 . Author of [[http://catalog.wccls.org/polaris/search/searchresults.aspx?ctx=1.1033.0.0.6&type=Browse&term=Seven%20brief%20lessons%20on%20physics&by=TI&sort=TI&limit=TOM=*&query=MTE=%2767669298%27&page=0&searchid=0 | "Seven Brief Lessons on Physics"  . Author of [[ http://catalog.wccls.org/polaris/search/searchresults.aspx?ctx=1.1033.0.0.6&type=Browse&term=Seven%20brief%20lessons%20on%20physics&by=TI&sort=TI&limit=TOM=*&query=MTE=%2767669298%27&page=0&searchid=0 | "Seven Brief Lessons on Physics" ]]

Idea is that spacetime is quantized, connection graphs between nodes at Planck scale. "Big bang" is "big bounce"

 .p059 Maxwell's equations: dF = 0, d*F = J (?? divergence and curl of "field" ?? )
 .p157 [[ http://www.webofstories.com/play/9542?o=MS | John Wheeler audio ]]
 .p182 "time does not exist" at the Planck scale, time is relational at large scale
 .p220 Possible loop quantum gravity prediction of background radiation spectrum
  . graph vs. k,,(co-moving),, which ranges from 0 to 20 ... and what is k,,(co-moving),,?
  . A. Ashtekar, I. Agullo, W. Nelson ... probably fig. 1 of [[ https://arxiv.org/pdf/1209.1609 | Quantum gravity extension of the inflationary scenario]] , 2012

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== Seven Brief Lessons on Physics ==
=== Hillsboro 530 Rovelli 2016 ===
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Quick fluff ... page 48 shows "bounce" from prior phase. Would that bounce homogenize the universe ... instead of inflation?

Reality is Not What It Seems

The Journey to Quantum Gravity

Carlo Rovelli 2017 . Cedar Mill 503.143


Idea is that spacetime is quantized, connection graphs between nodes at Planck scale. "Big bang" is "big bounce"

  • p059 Maxwell's equations: dF = 0, d*F = J (?? divergence and curl of "field" ?? )
  • p157 John Wheeler audio

  • p182 "time does not exist" at the Planck scale, time is relational at large scale
  • p220 Possible loop quantum gravity prediction of background radiation spectrum


Seven Brief Lessons on Physics

Hillsboro 530 Rovelli 2016


Quick fluff ... page 48 shows "bounce" from prior phase. Would that bounce homogenize the universe ... instead of inflation?

Rovelli (last edited 2023-10-23 09:32:06 by KeithLofstrom)