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Thunderbird and loveritas:
Earth's obliquity is always changing. It is not a fixed constant value. The astrophysical literature contains mathematical models that can be used to calculate our best available determination of what Earth's obliquity was in the past. There has actually been a significant amount of interest in, and accurate determination of, that in recent decades because it is important to climate change calculations (affecting how much sunlight impacts different latitudes, etc.)

My discussion with Starry Night is asking them what method they use to calculate Earth's obliquity in the past, especially circa 12,000 BC. I referenced the publication containing the mathematical model I use to calculate Earth's obliquity. Starry Night has not yet referenced or published what mathematical model they use.


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Subject Views Written By Posted
Zep Tepi 462 loveritas 07-Mar-13 11:01
Re: Zep Tepi 294 PB Bytes 08-Mar-13 15:17
Re: Zep Tepi 290 loveritas 08-Mar-13 20:31
Mostly offline next couple of days 324 Thomas Brophy 08-Mar-13 23:57
Re: Mostly offline next couple of days 265 loveritas 09-Mar-13 00:34
Re:the waves of which dashed in powerless fury against its base. 303 Thunderbird 10-Mar-13 20:18
Nice To See You're Back 326 loveritas 12-Mar-13 04:22
Re: Nice To See You're Back 305 Thomas Brophy 16-Mar-13 04:52
GHMB 'Decorum' and Other Issues 301 Dr. Lew Graham 16-Mar-13 14:03
Re: GHMB 'Decorum' and Other Issues 300 Thomas Brophy 16-Mar-13 20:18
High on Ego 272 loveritas 16-Mar-13 21:59
and self righteous arrogance 305 Sirius7237 16-Mar-13 22:18
Re: GHMB 'Decorum' and Other Issues 326 Bobajot 17-Mar-13 02:15
Re: GHMB 'Decorum' and Other Issues 303 Aine 17-Mar-13 22:04
Relying Upon One's Discernment 351 Dr. Lew Graham 18-Mar-13 01:35
Re: Relying Upon One's Discernment 829 cladking 18-Mar-13 20:58
Atrophy of Discernment 338 Dr. Lew Graham 18-Mar-13 21:34
Re: Atrophy of Discernment 340 cladking 18-Mar-13 21:59
A Miracle? 319 Dr. Lew Graham 18-Mar-13 23:42
Accidently hit "quote" instead of post and failed to correct 324 cladking 19-Mar-13 00:20
Miracles? 284 Dr. Lew Graham 19-Mar-13 00:30
Re: A Miracle? 216 PB Bytes 19-Mar-13 00:47
Typo 322 Dr. Lew Graham 19-Mar-13 01:00
Sarcasm? 298 Sirius7237 19-Mar-13 03:04
More Hypocrisy 301 loveritas 19-Mar-13 05:32
Re: Typo 280 PB Bytes 19-Mar-13 03:26
yes, maybe thinking is not ultimate ground of being 291 Thomas Brophy 18-Mar-13 23:03
Re: yes, maybe thinking is not ultimate ground of being 306 cladking 19-Mar-13 02:16
I addressed your question on Zep Tepi, no? 292 Thomas Brophy 18-Mar-13 04:41
Re: I addressed your question on Zep Tepi, no? 306 loveritas 18-Mar-13 06:07
Re: I addressed your question on Zep Tepi, no? 373 Thomas Brophy 18-Mar-13 22:30
Re: I addressed your question on Zep Tepi, no? 340 loveritas 18-Mar-13 22:38
I'll Rephrase the Question 317 loveritas 19-Mar-13 20:42
Re: I'll Rephrase the Question 313 Aine 19-Mar-13 21:37
Re: I'll Rephrase the Question 315 loveritas 20-Mar-13 11:54
Re: I'll Rephrase the Question 323 Thomas Brophy 20-Mar-13 17:47
Re: I'll Rephrase the Question 328 Thunderbird 20-Mar-13 18:29
Re: I'll Rephrase the Question 307 loveritas 20-Mar-13 21:33
Re: I'll Rephrase the Question 300 Spiros 20-Mar-13 22:13
Re: I'll Rephrase the Question 338 Laird Scranton 21-Mar-13 16:50
Re: I'll Rephrase the Question 344 Spiros 21-Mar-13 19:16
Re: I'll Rephrase the Question 333 Audrey 24-Mar-13 04:25
Re: I'll Rephrase the Question 299 Thomas Brophy 24-Mar-13 06:10
Re: I'll Rephrase the Question 263 loveritas 24-Mar-13 06:54
Starry Night Pro calculation still not clarified 349 Thomas Brophy 29-Mar-13 22:02
Re: Starry Night Pro calculation still not clarified 323 loveritas 30-Mar-13 02:05
Re: What if?...... 288 Thunderbird 30-Mar-13 20:56
Re: What if?...... 284 loveritas 30-Mar-13 23:55
Re: Zawiyet el-Aryan meridian observation shaft/Water clock 535 Thunderbird 31-Mar-13 03:37
Re: Zawiyet el-Aryan meridian observation shaft/Water clock 316 loveritas 31-Mar-13 07:56
Bond of Heaven and Earth 474 loveritas 01-Apr-13 01:25
Djed-raising ropes? 321 Thomas Brophy 01-Apr-13 01:40
Re: Djed-raising ropes? 329 loveritas 01-Apr-13 05:18
Re: Djed-raising ropes? 300 Thomas Brophy 01-Apr-13 06:47
Re: Djed-raising ropes? 323 loveritas 01-Apr-13 06:58
Re: Djed-raising ropes? 309 Thomas Brophy 01-Apr-13 07:05
Re: Djed-raising ropes? 294 loveritas 01-Apr-13 07:11
Re: Djed-raising ropes? 315 Thomas Brophy 01-Apr-13 07:24
Re: Ability....and transitions of time. 315 Thunderbird 01-Apr-13 23:19
Re: Ability....and transitions of time. 289 loveritas 01-Apr-13 23:53
Re: King and Queen Ascending/Descending 379 Thunderbird 02-Apr-13 20:07
Re: King and Queen Ascending/Descending 283 loveritas 02-Apr-13 22:37
Re: Bond of Heaven and Earth 339 Thunderbird 01-Apr-13 03:55
Some basics... 323 Thomas Brophy 31-Mar-13 00:16
Re: Starry Night Pro calculation still not clarified 329 Spiros 30-Mar-13 06:30
Help ask Starry Night 303 Thomas Brophy 31-Mar-13 00:58
Re: Help ask Starry Night 384 Spiros 31-Mar-13 17:58
Starry Night Pro 'fesses up to precession calculation errors 882 Thomas Brophy 02-Apr-13 19:29
Re: Starry Night Pro 'fesses up to precession calculation errors 367 Spiros 02-Apr-13 20:59
Re: Starry Night Pro 'fesses up to precession calculation errors 301 Thomas Brophy 02-Apr-13 21:22
Starry Night Pro precession calculation fix delayed 372 Thomas Brophy 10-May-13 22:39
Re: Starry Night Pro precession calculation fix delayed 323 loveritas 11-May-13 01:22
Re: Starry Night Pro precession calculation fix delayed 309 Spiros 13-May-13 22:10
What is your culminating declination? 305 Thomas Brophy 13-May-13 22:49
Re: What is your culminating declination? 291 Spiros 13-May-13 23:27
Re: What is your culminating declination? 314 Thomas Brophy 14-May-13 00:13
Re: What is your culminating declination? 264 Spiros 19-May-13 01:31
Re: I'll Rephrase the Question 394 Thomas Brophy 21-Mar-13 04:20
Einstein Not Necessary 296 loveritas 21-Mar-13 06:37
Memory & Einstein 293 loveritas 24-Mar-13 23:10
Re: Memory & Einstein 331 Thomas Brophy 24-Mar-13 23:43
Re: Zep Tepi 300 Eddie Larry 14-May-13 03:45
Re: Zep Tepi 310 Sirfiroth 15-May-13 02:15
Re: Zep Tepi 272 Eddie Larry 15-May-13 03:02


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