Tommahawk Posted December 10, 2004 Share Posted December 10, 2004 Hi, I am writing a little software program that displays time on the basis that a earth year is a measure of the earth making 1 revolution around the sun. In contrast to "In the year of our Lord 2004" or in contrast to another culture ideal of time. The question is what year is it? or how manyrevolutions has the earth made around the sun? Link to comment Share on other sites More sharing options...
TimeTraveler Posted December 10, 2004 Share Posted December 10, 2004 I don't think it is possible to get a firm answer, but a close estimate would be the year: 5,000,000,000 Link to comment Share on other sites More sharing options...
ecoli Posted December 10, 2004 Share Posted December 10, 2004 Uranium Dating in the rocks estimate that the earth is around 4.5 billion years old. However, because how the earth formed is mostly speculative, we can't know for sure how long the body we know as earth as been revolving around the sun. There could have been matter circiling the sun, that would become our earth long before it actually formed. Link to comment Share on other sites More sharing options...
jay geo Posted December 17, 2004 Share Posted December 17, 2004 yes the earth is abt 4.5 b yrs old and men has been around for the last 6000 yrs only... Link to comment Share on other sites More sharing options...
Ophiolite Posted December 17, 2004 Share Posted December 17, 2004 yes the earth is abt 4.5 b yrs old and men has been around for the last 6000 yrs only...If you would just care to multiply that last figure by thirty (30) please. Civilisation alone is older than 6000 years. Link to comment Share on other sites More sharing options...
swansont Posted December 17, 2004 Share Posted December 17, 2004 yes the earth is abt 4.5 b yrs old and men has been around for the last 6000 yrs only... Humans (Homo sapiens) have been around a tad longer than that; ~50k years. Agriculture has been around for ~10k years. Link to comment Share on other sites More sharing options...
Auk Posted December 17, 2004 Share Posted December 17, 2004 I don't think it is possible to get a firm answer, but a close estimate would be the year: 5,000,000,000 How did you estimate that? Link to comment Share on other sites More sharing options...
JaKiri Posted December 17, 2004 Share Posted December 17, 2004 Read the post after his. Link to comment Share on other sites More sharing options...
Auk Posted December 18, 2004 Share Posted December 18, 2004 I know but why add another 0.5 billion was the question? Link to comment Share on other sites More sharing options...
2004einstein Posted December 18, 2004 Share Posted December 18, 2004 Can you really put a date on when we actually became Homo sapiens, Isnt it less of a linear thing, we didnt just sublimate from what ever came before. Plus there is interbreading to take into account. I like this non-creationalist calendar idea seeing as I am an athiest but I would put the start date at the point life in general started myself, but then you still have pin-pointing problems there. :grin: Link to comment Share on other sites More sharing options...
swansont Posted December 18, 2004 Share Posted December 18, 2004 Can you really put a date on when we actually became Homo sapiens, You're right - all dates are approximate. Link to comment Share on other sites More sharing options...
JaKiri Posted December 18, 2004 Share Posted December 18, 2004 I know but why add another 0.5 billion was the question? It's all fairly approximate; obviously he didn't mean 5,000,000,000 exactly, but 5x10^9. One significant figure. Link to comment Share on other sites More sharing options...
Guest Caesar Rahil Posted January 6, 2005 Share Posted January 6, 2005 The Earth may be, at an estimate, 4.5 to 5 billion years old. But at first it was in the Hot, Gaseous state and has been cooled down. Link to comment Share on other sites More sharing options...
Tommahawk Posted April 29, 2005 Author Share Posted April 29, 2005 So in this case what I am going to do is take 5,000,000,000 years and add the current date which is another 2005 years to it and call it a new name and say that is the date/time. Any objections or ideas on making this more precise or acceptable. Link to comment Share on other sites More sharing options...
Xavier Posted May 2, 2005 Share Posted May 2, 2005 Don't forget that the Earth has been slowing down. It loses energy due to friction and widens its orbit, conserving angular momentum so a year took less than a year back then. Link to comment Share on other sites More sharing options...
nomadd22 Posted May 12, 2005 Share Posted May 12, 2005 4,856,985.36 Link to comment Share on other sites More sharing options...
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