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fretty
Hooray, solved it:

 Spoiler (Rollover to View): There is one number that managed to slip through the woodwork in the twenties.

Posted: Thu Aug 03, 2006 11:23 am
doublecross
The card asks for millennia, so surely that's what the unit is.

Am I the 'someone'?

Posted: Thu Aug 03, 2006 9:28 am
Allattar
If anyone is interested

 Spoiler (Rollover to View): If its 26000 years for the precession 22000 years for the ecliptic cycle and 41000 years for the tilt. You would need to wait 2132000 years to return to the same conditions. phew.

Oh and Ben tell us if you used millenia, or years as the answer. Before we go crazy.

Posted: Thu Aug 03, 2006 9:04 am
fretty

Posted: Thu Aug 03, 2006 8:57 am
Dragonscales
Allattar wrote:
Can we get a hint as to how you solved it?

And the answer is just in numbers of millenia? or should it be specified as years?

 Spoiler (Rollover to View): ie: did you put the answer as 26 for 26 millenia (note 26 doesnt work as the answer as noted above) or did you put 25800 for the number of years it takes for the Earth to return to the same point in the Great year.

How I solved it... let me see...

 Spoiler (Rollover to View): Guesswork - I saw that someone had tried *edited*, and guessed it from there. Sorry I can't be of any more use.

Ben

Posted: Thu Aug 03, 2006 8:54 am
doublecross
Nor

 Spoiler (Rollover to View): 41

Posted: Thu Aug 03, 2006 8:50 am
Allattar
grrr its not

 Spoiler (Rollover to View): 22

So that rules out that one.

Posted: Thu Aug 03, 2006 8:34 am
Allattar
ooooh hang on

 Spoiler (Rollover to View): The 25800 year cycle is the precession cycle of the earth. There is a 22000 year elliptical cycle in changes in the ellipse the Earth follows. See Milankovitch cycles. http://en.wikipedia.org/wiki/Milankovitch_cycle However there is also a 41000 year Rotational Angle cycle..... Ow head hurts. Do I pick the one I think it should be from above or is it even more complex than that?

Posted: Thu Aug 03, 2006 8:32 am
fretty
Are you sure the answer's 25800, it says return to first point, this is probably a different value that for one complete cycle. On wikipedia it says that we have already been going for 5000 years, so shouldn't the answer be 20800 years.

Posted: Thu Aug 03, 2006 8:26 am
Allattar
Can we get a hint as to how you solved it?

And the answer is just in numbers of millenia? or should it be specified as years?

 Spoiler (Rollover to View): ie: did you put the answer as 26 for 26 millenia (note 26 doesnt work as the answer as noted above) or did you put 25800 for the number of years it takes for the Earth to return to the same point in the Great year.

Posted: Thu Aug 03, 2006 8:13 am
Dragonscales
 Spoiler (Rollover to View): As always, Von's hint is mostly useless, but thankfully, he's confirmed that it is actually earth and the sun, rather than a PXP or anything like that...

OMG YAY! I just solved it!

 Spoiler (Rollover to View): BIG hint: No decimal places

Ben

Posted: Thu Aug 03, 2006 7:29 am
fretty
I guess Von uses wikipedia aswell, or some perplex city variant:
http://en.wikipedia.org/wiki/Ecliptic

Posted: Thu Aug 03, 2006 5:59 am
hendo77
Von's Hint:

 Spoiler (Rollover to View): The ecliptic is the apparent path the Sun traces out along the sky in the course of a year, independent of the Earth's rotation

Posted: Thu Aug 03, 2006 5:49 am
Allattar
edit: found proper discussion of those long numbers here

http://forums.unfiction.com/forums/viewtopic.php?t=16138&postdays=0&postorder=asc&start=0

edit:
Has anyone signed this card? I can only find image courtesy of Nasa on it

Posted: Thu Aug 03, 2006 3:19 am
domroberts
This card must be to do with the ecliptic orbit of the Earth - the cube indicates it is Earth as we know it is hidden here somewhere.

The cycle is known as :
 Spoiler (Rollover to View): A Great Year, or Platonic Year I have tried the following and have been told they are incorrect : 24, 25, 26, 27

Other than that I'm a bit stumped. Although it would appear that an answer of *edited out - see spoiler* would be too easy for a black card.

Dom

EDIT - more spoilers added as some info should have gone inside them really.

Posted: Wed Aug 02, 2006 1:03 pm
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