On the shortest day of the year......
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On the shortest day of the year......
.....and because we can't be arsed to do anything in work on the run up to Xmas, we have been discussing at what point does the earth stop, then start to move 'down', as it were, to lengthen the days?
Is this known? Is it possible to tell? How can we find out? Does anyone else care?
Geezer
Is this known? Is it possible to tell? How can we find out? Does anyone else care?
Geezer
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Originally Posted by Geezer
.....and because we can't be arsed to do anything in work on the run up to Xmas, we have been discussing at what point does the earth stop, then start to move 'down', as it were, to lengthen the days?
Is this known? Is it possible to tell? How can we find out? Does anyone else care?
Geezer
Is this known? Is it possible to tell? How can we find out? Does anyone else care?
Geezer
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I looked into this last year, as it puzzled me as to why the nights start to draw out after the 21st December, but the mornings continue to draw IN right up to mid January
It's due to something called the "analemma" ( I think that's spelled right), and the explanation can be found on the Greenwich Observatory site:
http://www.rog.nmm.ac.uk/
Alcazar
It's due to something called the "analemma" ( I think that's spelled right), and the explanation can be found on the Greenwich Observatory site:
http://www.rog.nmm.ac.uk/
Alcazar
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Days stay at 24 hours long. They don't get longer or shorter. Now the amount of light in a day changes of course.
At what point - once the orbit has reached the furthest point I guess.
At what point - once the orbit has reached the furthest point I guess.
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Let me see.......... given that today is the shortest day....... and the days can only get longer....... I'd guess the answer is..... today!
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#9
alcazar
Do you have a phone number for "**** emma" as seeing its the shortest day, she should be doing her stuff!!! LOL
Do you have a phone number for "**** emma" as seeing its the shortest day, she should be doing her stuff!!! LOL
Last edited by Tracktive Solutions; 21 December 2005 at 04:28 PM.
#10
Originally Posted by Geezer
Have you made that up, and if not, how do you know?
The info you need is here:
http://aa.usno.navy.mil/data/docs/EarthSeasons.html
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OK, I understand it's easy to plot planetary motion etc., but how do they know the exact moment the earth turns?
Thanks for the link BTW.
Geezer
Thanks for the link BTW.
Geezer
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