Is the earth growing?

Started by: 2-D | Replies: 63 | Views: 3,203

Peppar
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Mar 19, 2010 5:44 PM #557375
Well, the earth is probably expanding. And i agree with Exilement. Point: just because the continents are moving 0.5 mm a year does not mean the earth is expanding. (probably.)
Zed
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Mar 19, 2010 6:12 PM #557377
Quote from alive
err, I don't know shit about this, but isn't it pretty much accepted fact that the earth is expanding, at least at some rate? I just went to an archeology lecture, and the teacher said that as a general rule, you go further back in time as you dig deeper down. He showed us an anagram that I can't find, but it pretty much showed the earth cut in half (like the anagrams showing the structure of the earth, with crust, upper mantle and so forth), with different layers representing different times.

If things are buried with time, does that not mean the earth must be expanding?



No, things get buried under landslides and at the bottom of oceans where the silt and sand is moving about constantly. Anything which isn't buried is destroyed so archaeologists and palaeontologists have to dig to find anything. A lot of the stuff that's on the top now would have been on the top a long time ago too, but nothing up here lasts long because of weathering etc. Same amount of earth but it gets shifted around more.



hmm.. "Modern measurements have established very stringent upper bound limits for the expansion rate, which very much reduces the possibility of an expanding Earth. For example, paleomagnetic data has been used to calculate that the radius of the Earth 400 million years ago was 102 ± 2.8% of today's radius.[8] Furthermore, examinations of earth's moment of inertia suggest that no significant change of earth's radius in the last 620 million years could have taken place and therefore earth expansion is untenable." http://en.wikipedia.org/wiki/Expanding_Earth


Yep. 2.8% in the last 400,000,000 years. The youtube nons[ci]ence was claiming 100% in the last 65,000,000.




Think about it. Where could the matter possibly have come from to generate that much growth. That's like being hit by county-sized meteors constantly. Life could not exist if the Earth was expanding at the rate they suggest.
Exile
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Mar 19, 2010 7:30 PM #557379
Quote from Zed
Where could the matter possibly have come from to generate that much growth. That's like being hit by county-sized meteors constantly.


Something like 40-50 tons of space material from meteorites/dust lands on earth every day
Zed
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Mar 19, 2010 8:37 PM #557392
Quote from Exilement
Something like 40-50 tons of space material from meteorites/dust lands on earth every day


Video's claim: Radius of earth doubled in 65,000,000 years

Volume of a spere: 4/3xpixr^3

Current radius of earth: 6378km

Claimed previous radius of earth: 3189km

Volume of Earth has therefore increased 8 fold.

Current mass of earth: 6,000,000,000,000,000,000,000,000kg (6x10^24)

7/8 of earth's mass = the claimed increase in mass = 5,250,000,000,000,000,000,000,000

65,000,000 years = 23725000000 days

increase in mass / days of increase = 221,285,563,751,317.176



That's approximately 220 billion tons per day. Somehow I can't see it happening.
Exile
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Mar 19, 2010 9:30 PM #557407
Well, I think as ash said, if the mass changed dramatically it would have had a profound effect on both the gravitational pull on earth's surface and its orbit around the sun, which it obviously hasn't. And volume doesn't necessarily relate to mass when you're talking about an object expanding.

Like I said I don't think the video's true, just arguing for the sake of itself.
OGrilla
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Mar 19, 2010 9:57 PM #557426
That's what I was trying to get across in my post. I think this hypothesis has more to do with changing volume than mass. I don't know the detailed scientific explanation, but it doesn't matter I suppose since it's so outlandish to think of such a thing. And I love how he mentioned that magma is so dense so the tectonic plates can't subdue when it takes millions of years and over that time I think what's going on is less about big floating things sinking in fluid than the plates deciding who gets turned into the fluid. The idea of subduction being an optional process yet stretching is a constant is very funny to me.
Peppar
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Mar 19, 2010 10:55 PM #557441
Conclusion: There is probably no possible way the earth could be growing physically. If mentally, they would conclude that the number of people are growing. I do not think it is possible for the earth and the continents to be growing. the continents are spacing 0.5 mm a year.
NumberedSpartan

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Mar 20, 2010 2:35 AM #557507
the earth can't grow but it only grows in years it is 2010 years old
Ash
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Mar 20, 2010 4:27 AM #557527
...



Wow. That is so damned stupid I can't even being to say. You do realize that the Julian calendar marks year 0 as the birth of Christ, right?
Automaton
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Mar 20, 2010 11:56 AM #557617
Quote from NumberedSpartan
the earth can't grow but it only grows in years it is 2010 years old

actually It's about 4,500,000,000 years old.
2-D
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Mar 20, 2010 1:02 PM #557627
Quote from NumberedSpartan
the earth can't grow but it only grows in years it is 2010 years old


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alive
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Mar 20, 2010 1:03 PM #557628
Quote from Zed
No, things get buried under landslides and at the bottom of oceans where the silt and sand is moving about constantly. Anything which isn't buried is destroyed so archaeologists and palaeontologists have to dig to find anything. A lot of the stuff that's on the top now would have been on the top a long time ago too, but nothing up here lasts long because of weathering etc. Same amount of earth but it gets shifted around more.

Oh, I see. Thanks. For the record, I didn't argue in favour of this theory, I just wanted to learn how things got buried like that.

Quote from Zed

Yep. 2.8% in the last 400,000,000 years. The youtube nons[ci]ence was claiming 100% in the last 65,000,000.




Think about it. Where could the matter possibly have come from to generate that much growth. That's like being hit by county-sized meteors constantly. Life could not exist if the Earth was expanding at the rate they suggest.

I know, I posted that quote to show that the expanding earth theory is false. Hence the "therefore earth expansion is untenable." end of it.
Zed
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Mar 20, 2010 2:37 PM #557646
Quote from alive
I know, I posted that quote to show that the expanding earth theory is false. Hence the "therefore earth expansion is untenable." end of it.


Oh, right, my bad.
Tovarich Ivanov
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Mar 20, 2010 6:48 PM #557695
2-D, I don't knew you can provide so comprehensive information. Thank you very much
Peppar
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Mar 20, 2010 11:11 PM #557780
Quote from NumberedSpartan
the earth can't grow but it only grows in years it is 2010 years old
your homeschooled. arent you?