Blog: Relativity and Cosmology

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10/04/2020 6:10 AM Pesky Ellipse Circumference
by Jorrie
Pathfinder Tags: circumference ellipse perimeter
Last post: 11/30/2020 12:03 PM
by Haymaker
 8 463
08/24/2020 7:15 AM SpaceProperTime Diagrams and the Central Singularity
by Jorrie
Pathfinder Tags: einstein general relativity
Last post: 08/25/2020 10:56 AM
by Jorrie
 4 293
08/17/2020 3:00 AM SPT-Acceleration and the Equivalence Principle
by Jorrie
Last post: 08/18/2020 12:13 PM
by Jorrie
 8 173
08/11/2020 12:00 AM Space-Propertime Structure and Acceleration II
by Jorrie
Pathfinder Tags: acceleration Propertime spacetime
Last post: 08/18/2020 10:38 AM
by canadianslidewinder
 8 188
08/07/2020 5:00 AM Space-Propertime Structure and Acceleration
by Jorrie
Pathfinder Tags: Propertime spacetime
Last post: 08/08/2020 2:13 PM
by Jorrie
 6 231
08/04/2020 6:00 PM Spacetime Structure
by Jorrie
Last post: 08/12/2020 5:36 AM
by Just an Engineer
 8 158
07/23/2020 6:00 PM Roger Penrose and Conformal Cyclic Cosmology
by Jorrie
Last post: 07/29/2020 3:06 AM
by Jorrie
 9 215
04/11/2016 7:00 AM Another Relativity "Paradox"
by Jorrie
Pathfinder Tags: acceleration relativity
Last post: 01/28/2017 6:26 AM
by Erik Nelson
 28 1931
03/27/2016 11:00 PM Time Dilation and Lorentz Contraction Revisited
by Jorrie
Last post: 08/18/2016 10:43 AM
by ralfcis
 130 2019
01/17/2015 1:55 AM HTRN's Cosmology Questions
by Jorrie
Last post: 01/28/2017 6:47 AM
by Erik Nelson
 17 543
11/30/2014 6:00 PM Heavyweights Flexing BICEP Muscles
by Jorrie
Pathfinder Tags: cosmology Cyclic model inflation
Last post: 12/01/2014 8:03 AM
by Anonymous Hero
 1 423
09/23/2014 12:49 PM Galactic Puzzle (take 2)
by Jorrie
Pathfinder Tags: Expansion rate Hubble flow
Last post: 09/25/2014 12:48 PM
by dkwarner
 23 639
08/28/2014 3:36 AM Do We Live In a White Hole?
by Jorrie
Pathfinder Tags: black hole White hole
Last post: 09/26/2014 12:17 PM
by James Stewart
 29 851
06/13/2013 2:33 PM The One-way Speed of Light Controversy
by Jorrie
Pathfinder Tags: relativity speed of light
Last post: 06/18/2013 1:21 AM
by Jorrie
 15 1371
12/18/2012 10:00 AM One-way Speed of Light
by Jorrie
Last post: 01/29/2013 3:32 PM
by Jorrie
 38 1188
09/18/2012 11:00 AM Cool Cosmo Calculator
by Jorrie
Last post: 09/19/2012 10:56 AM
by SolarEagle
 6 1672
07/23/2012 9:00 AM Our Observable Universe a Transient?
by Jorrie
Last post: 07/25/2012 5:08 PM
by Jorrie
 10 910
06/18/2012 10:00 AM Cosmological Calculator Update
by Jorrie
Last post: 06/19/2012 11:45 PM
by Jorrie
 4 1628
06/04/2012 9:00 AM De Sitter Cosmic Model Revival
by Jorrie
Last post: 06/09/2012 5:24 AM
by Jorrie
 14 779
05/29/2012 8:00 AM SKA shared between Africa and Australia
by Jorrie
Last post: 06/01/2012 4:14 PM
by ss3e55
 14 650
04/03/2012 11:44 PM Did Opera Spokesperson need to Resign?
by Jorrie
Pathfinder Tags: opera Superluminal Neutrinos
Last post: 04/09/2012 12:30 AM
by Cedar
 10 1358
01/24/2012 7:40 AM One-way Speed of Light not C?
by Jorrie
Pathfinder Tags: One-way speed of light
Last post: 08/29/2014 10:26 AM
by adreasler
 29 1357
01/04/2012 10:00 AM Scotty and Spock's CR4 Session
by Jorrie
Last post: 01/14/2012 11:49 PM
by Jorrie
 1 748
12/29/2011 1:00 AM Scotty and Spock's Vulcan Clocks
by Jorrie
Last post: 01/14/2012 11:40 PM
by Jorrie
 8 504
12/14/2011 3:32 AM Higgs Particle Discovered?
by Jorrie
Pathfinder Tags: "God particle" Higgs
Last post: 12/16/2011 6:48 AM
by Jorrie
 16 857
11/10/2011 4:00 AM Einstein Clocks and the Sagnac Effect
by Jorrie
Last post: 11/21/2011 10:53 PM
by Jorrie
 39 1072
11/03/2011 12:00 AM GPS and Relativity Misconceptions 3
by Jorrie
Pathfinder Tags: GPS relativity Sagnac effect
Last post: 11/04/2011 3:39 PM
by Jorrie
 10 510
10/31/2011 5:00 AM GPS and Relativity Misconceptions 2
by Jorrie
Pathfinder Tags: GPS Gravity relativity
Last post: 11/07/2011 1:22 PM
by Anonymous Poster
 28 539
10/24/2011 2:17 PM GPS and Relativity Misconceptions 1
by Jorrie
Pathfinder Tags: GPS relativity
Last post: 10/31/2011 2:46 PM
by Jorrie
 82 817
10/03/2011 6:00 PM New 'Blast-from-the Past' Record Confirmed
by Jorrie
Last post: 10/12/2011 3:09 AM
by Jorrie
 4 2149
09/27/2011 5:08 AM Neutrinos Go Superluminal?
by Jorrie
Pathfinder Tags: CERN speed of light Tachyon
Last post: 02/23/2012 7:02 AM
by Jorrie
 176 1378
06/08/2011 11:00 PM Spacetime Curvature
by Jorrie
Pathfinder Tags: curvature spacetime
Last post: 11/21/2011 10:41 PM
by Jorrie
 77 1778
05/03/2011 6:00 PM Wiltshire and the Cosmic Bell
by Jorrie
Pathfinder Tags: cosmic expansion hubble
Last post: 12/18/2011 9:05 PM
by Widdekind
 30 447
04/12/2011 4:00 AM Fractal Hubble Bubbles?
by Jorrie
Pathfinder Tags: cosmology Hubble-bubble
Last post: 12/15/2011 8:23 AM
by Widdekind
 30 675
03/10/2011 4:55 AM Equatorial Bulge
by Jorrie
Pathfinder Tags: Equatorial bulge Gravity
Last post: 04/13/2011 1:25 AM
by 34point5
 27 605
02/22/2011 12:00 AM Relativistic Two-Body Orbits
by Jorrie
Last post: 02/24/2011 8:49 PM
by George Hatt Jr
 9 315
02/14/2011 4:55 AM Two-Body Orbits
by Jorrie
Last post: 02/15/2011 2:59 PM
by Jorrie
 3 267
02/05/2011 10:00 PM Ekpyrotic Cosmic Balloon
by Jorrie
Last post: 02/11/2011 2:40 PM
by Jorrie
 6 202
01/26/2011 10:00 PM Colliding Branes Cosmic Model
by Jorrie
Last post: 02/04/2011 8:33 AM
by Jorrie
 46 690
11/29/2010 6:00 AM Orbit Energy Puzzle II
by Jorrie
Last post: 12/05/2010 6:33 AM
by Jorrie
 16 415
11/23/2010 5:00 AM Orbit Energy Puzzle
by Jorrie
Pathfinder Tags: Orbit energy puzzle
Last post: 11/27/2010 12:52 PM
by StandardsGuy
 23 384
10/24/2010 11:00 PM The Cosmic Teardrop
by Jorrie
Last post: 10/29/2010 11:57 PM
by Anonymous Poster
 7 572
10/14/2010 4:00 AM Cosmos now Bigger!
by Jorrie
Pathfinder Tags: Size of the universe WMAP7
Last post: 10/19/2010 12:52 AM
by Jorrie
 13 411
10/06/2010 1:00 AM Cosmic 'Dark Flow'
by Jorrie
Pathfinder Tags: dark energy Dark flow dark matter
Last post: 10/14/2010 2:08 AM
by cwarner7_11
 25 561
08/18/2010 11:00 PM Measuring Cosmic Expansion
by Jorrie
Pathfinder Tags: cosmic expansion Redshift
Last post: 08/26/2010 8:12 PM
by Transcendian
 6 542
08/04/2010 11:00 PM Dark Energy Superfluous?
by Jorrie
Pathfinder Tags: cosmology dark energy
Last post: 09/04/2012 8:15 AM
by Jorrie
 45 673
04/28/2010 12:00 AM Relativistic Sling Forces
by Jorrie
Pathfinder Tags: Centripetal force relativity
Last post: 10/07/2010 7:49 AM
by Jorrie
 4 837
02/18/2010 12:41 AM Amazing New Einstein Test
by Jorrie
Last post: 05/04/2011 12:21 PM
by Jorrie
 21 896
01/11/2010 11:00 PM The 'Half-Twin' Puzzle
by Jorrie
Pathfinder Tags: special relativity Twin Paradox
Last post: 06/16/2017 1:30 AM
by gyeongmeen
 64 1343
12/10/2009 12:00 AM Cosmic Ballistics Anyone?
by Jorrie
Last post: 01/13/2010 1:25 AM
by chrisg288
 11 460
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