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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 335 loveritas 07-Mar-13 11:01
Re: Zep Tepi 185 Poster Boy 08-Mar-13 15:17
Re: Zep Tepi 201 loveritas 08-Mar-13 20:31
Mostly offline next couple of days 205 Thomas Brophy 08-Mar-13 23:57
Re: Mostly offline next couple of days 166 loveritas 09-Mar-13 00:34
Re:the waves of which dashed in powerless fury against its base. 199 Thunderbird 10-Mar-13 20:18
Nice To See You're Back 225 loveritas 12-Mar-13 04:22
Re: Nice To See You're Back 211 Thomas Brophy 16-Mar-13 04:52
GHMB 'Decorum' and Other Issues 182 Dr. Lew Graham 16-Mar-13 14:03
Re: GHMB 'Decorum' and Other Issues 204 Thomas Brophy 16-Mar-13 20:18
High on Ego 179 loveritas 16-Mar-13 21:59
and self righteous arrogance 216 Sirius7237 16-Mar-13 22:18
Re: GHMB 'Decorum' and Other Issues 208 Bobajot 17-Mar-13 02:15
Re: GHMB 'Decorum' and Other Issues 194 Aine 17-Mar-13 22:04
Relying Upon One's Discernment 242 Dr. Lew Graham 18-Mar-13 01:35
Re: Relying Upon One's Discernment 715 cladking 18-Mar-13 20:58
Atrophy of Discernment 223 Dr. Lew Graham 18-Mar-13 21:34
Re: Atrophy of Discernment 239 cladking 18-Mar-13 21:59
A Miracle? 222 Dr. Lew Graham 18-Mar-13 23:42
Accidently hit "quote" instead of post and failed to correct 224 cladking 19-Mar-13 00:20
Miracles? 194 Dr. Lew Graham 19-Mar-13 00:30
Re: A Miracle? 133 Poster Boy 19-Mar-13 00:47
Typo 220 Dr. Lew Graham 19-Mar-13 01:00
Sarcasm? 199 Sirius7237 19-Mar-13 03:04
More Hypocrisy 205 loveritas 19-Mar-13 05:32
Re: Typo 179 Poster Boy 19-Mar-13 03:26
yes, maybe thinking is not ultimate ground of being 182 Thomas Brophy 18-Mar-13 23:03
Re: yes, maybe thinking is not ultimate ground of being 214 cladking 19-Mar-13 02:16
I addressed your question on Zep Tepi, no? 183 Thomas Brophy 18-Mar-13 04:41
Re: I addressed your question on Zep Tepi, no? 205 loveritas 18-Mar-13 06:07
Re: I addressed your question on Zep Tepi, no? 261 Thomas Brophy 18-Mar-13 22:30
Re: I addressed your question on Zep Tepi, no? 230 loveritas 18-Mar-13 22:38
I'll Rephrase the Question 217 loveritas 19-Mar-13 20:42
Re: I'll Rephrase the Question 213 Aine 19-Mar-13 21:37
Re: I'll Rephrase the Question 208 loveritas 20-Mar-13 11:54
Re: I'll Rephrase the Question 215 Thomas Brophy 20-Mar-13 17:47
Re: I'll Rephrase the Question 218 Thunderbird 20-Mar-13 18:29
Re: I'll Rephrase the Question 198 loveritas 20-Mar-13 21:33
Re: I'll Rephrase the Question 202 Spiros 20-Mar-13 22:13
Re: I'll Rephrase the Question 225 Laird Scranton 21-Mar-13 16:50
Re: I'll Rephrase the Question 244 Spiros 21-Mar-13 19:16
Re: I'll Rephrase the Question 224 Audrey 24-Mar-13 04:25
Re: I'll Rephrase the Question 197 Thomas Brophy 24-Mar-13 06:10
Re: I'll Rephrase the Question 169 loveritas 24-Mar-13 06:54
Starry Night Pro calculation still not clarified 239 Thomas Brophy 29-Mar-13 22:02
Re: Starry Night Pro calculation still not clarified 219 loveritas 30-Mar-13 02:05
Re: What if?...... 185 Thunderbird 30-Mar-13 20:56
Re: What if?...... 198 loveritas 30-Mar-13 23:55
Re: Zawiyet el-Aryan meridian observation shaft/Water clock 367 Thunderbird 31-Mar-13 03:37
Re: Zawiyet el-Aryan meridian observation shaft/Water clock 213 loveritas 31-Mar-13 07:56
Bond of Heaven and Earth 359 loveritas 01-Apr-13 01:25
Djed-raising ropes? 217 Thomas Brophy 01-Apr-13 01:40
Re: Djed-raising ropes? 222 loveritas 01-Apr-13 05:18
Re: Djed-raising ropes? 211 Thomas Brophy 01-Apr-13 06:47
Re: Djed-raising ropes? 222 loveritas 01-Apr-13 06:58
Re: Djed-raising ropes? 211 Thomas Brophy 01-Apr-13 07:05
Re: Djed-raising ropes? 196 loveritas 01-Apr-13 07:11
Re: Djed-raising ropes? 221 Thomas Brophy 01-Apr-13 07:24
Re: Ability....and transitions of time. 208 Thunderbird 01-Apr-13 23:19
Re: Ability....and transitions of time. 189 loveritas 01-Apr-13 23:53
Re: King and Queen Ascending/Descending 252 Thunderbird 02-Apr-13 20:07
Re: King and Queen Ascending/Descending 187 loveritas 02-Apr-13 22:37
Re: Bond of Heaven and Earth 230 Thunderbird 01-Apr-13 03:55
Some basics... 221 Thomas Brophy 31-Mar-13 00:16
Re: Starry Night Pro calculation still not clarified 218 Spiros 30-Mar-13 06:30
Help ask Starry Night 210 Thomas Brophy 31-Mar-13 00:58
Re: Help ask Starry Night 255 Spiros 31-Mar-13 17:58
Starry Night Pro 'fesses up to precession calculation errors 645 Thomas Brophy 02-Apr-13 19:29
Re: Starry Night Pro 'fesses up to precession calculation errors 262 Spiros 02-Apr-13 20:59
Re: Starry Night Pro 'fesses up to precession calculation errors 197 Thomas Brophy 02-Apr-13 21:22
Starry Night Pro precession calculation fix delayed 256 Thomas Brophy 10-May-13 22:39
Re: Starry Night Pro precession calculation fix delayed 223 loveritas 11-May-13 01:22
Re: Starry Night Pro precession calculation fix delayed 207 Spiros 13-May-13 22:10
What is your culminating declination? 206 Thomas Brophy 13-May-13 22:49
Re: What is your culminating declination? 204 Spiros 13-May-13 23:27
Re: What is your culminating declination? 217 Thomas Brophy 14-May-13 00:13
Re: What is your culminating declination? 169 Spiros 19-May-13 01:31
Re: I'll Rephrase the Question 272 Thomas Brophy 21-Mar-13 04:20
Einstein Not Necessary 195 loveritas 21-Mar-13 06:37
Memory & Einstein 198 loveritas 24-Mar-13 23:10
Re: Memory & Einstein 216 Thomas Brophy 24-Mar-13 23:43
Re: Zep Tepi 196 Eddie Larry 14-May-13 03:45
Re: Zep Tepi 201 Sirfiroth 15-May-13 02:15
Re: Zep Tepi 183 Eddie Larry 15-May-13 03:02


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