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Post by grumpybill on Apr 15, 2018 16:09:29 GMT -5
Our solar system makes one revolution around the center of our galaxy every 250 million years, or there abouts.
Maybe we should start measuring geologic time in "galaxian years".
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Post by mohs on Apr 15, 2018 18:01:02 GMT -5
geologist’s are on fairly solid ground
using the earth’s revolution around the sun
as a time frame
Where problems arise is:
time estimates of the big bang
What does 13.7 billion years ago even mean?
What is used as that time frame reference?
Galaxies didn’t exist.
I suppose one can sort of extrapolate it out.
Ink Mathematics & atom smashing is key…
nonetheless an interesting problem Bill
among many...
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Post by grumpybill on Apr 15, 2018 19:03:06 GMT -5
mohs The problem is that the human brain can't work with big numbers. Millions? Maybe. 100s of millions? Not likely. Billions? No way. I think it's easier to comprehend that the Atlantic Ocean formed it the amount f time it took the solar system to make one revolution around the Milky Way than that it took several hundred million years.
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Post by parfive on Apr 15, 2018 19:50:56 GMT -5
Human brains ain’t too keen on that stroke of the nail file either. : )
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Post by 1dave on Apr 15, 2018 21:10:55 GMT -5
geologist’s are on fairly solid ground using the earth’s revolution around the sun as a time frame Where problems arise is: time estimates of the big bang What does 13.7 billion years ago even mean? What is used as that time frame reference? Galaxies didn’t exist. I suppose one can sort of extrapolate it out. Ink Mathematics & atom smashing is key… nonetheless an interesting problem Bill among many... They took the rate at which galaxies are racing away from each other and worked backward. Correct to .000000000000000000000000000000000000000000000000000001 - Or maybe not. |
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Post by mohs on Apr 15, 2018 22:18:04 GMT -5
ha ha dave!
1x 10-51
that pretty finite
or
infinite
depending on the radiation directional shifting momentum of the roll
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Post by 1dave on Apr 15, 2018 22:32:54 GMT -5
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gemfeller
Cave Dweller 
Member since June 2011
Posts: 4,060 
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Post by gemfeller on Apr 15, 2018 22:42:00 GMT -5
mohs The problem is that the human brain can't work with big numbers. Millions? Maybe. 100s of millions? Not likely. Billions? No way. I think it's easier to comprehend that the Atlantic Ocean formed it the amount f time it took the solar system to make one revolution around the Milky Way than that it took several hundred million years. Do you actually think most people even realize the Solar System orbits the Milky Way center? That would be a Very Big Idea for most folks I run into. |
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Post by grumpybill on Apr 16, 2018 4:12:36 GMT -5
Do you actually think most people even realize the Solar System orbits the Milky Way center? That would be a Very Big Idea for most folks I run into. People are constantly deluged with numbers too large to comprehend. Billions of miles. Trillions of dollars. It becomes meaning less to them. But, if you present them with something like "the time it takes the solar system to go around the galaxy" they'll think "Wow! That's a LONG time!". Kinda like measuring distance in light years is somehow easier to comprehend than trillions of miles. (And just so everyone knows: This all sorta' tongue in cheek.) |
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gemfeller
Cave Dweller
Member since June 2011
Posts: 4,060
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Post by gemfeller on Apr 16, 2018 12:44:37 GMT -5
grumpybill, Took you literally; sounds like a non-sequitur in answer to a non-sequitur. Sort've like comparing Astronomical Units to Parsecs.
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