Is the Earth growing? - Page 2

Mise · Jun 04, 2008, 11:34 AM

You can call it "just an approximation", but I'd call it "rounding to a sensible number of significant figures"

Anyway, what you said in the last post seems unrelated to what you said in the post before it. The energy released from chemical reactions comes from the chemical bonds being broken, not from mass turning into energy.

Perfection · Jun 04, 2008, 02:53 PM

In any case, it doesn't produce more atoms, and most of it becomes heat.

uppi · Jun 04, 2008, 04:33 PM

yes, I think we can all agree that there is no way that sunlight contributes any significant amount of mass to the earth and that an expanding earth is a silly idea.

If anyone wants to further discuss mass/energy relations we can do that in another thread.

GoodGame · Jun 04, 2008, 04:50 PM

I have to say that this user's response was enlightening:

Quote:

And why are the rocks with fish on land? Tectonics, pure and simple.

Chieftess · Jun 05, 2008, 05:17 AM

I saw that one the other day. If the Earth expanded like that, then there should be no more volcanic eruptions, since there's a large, empty space. I remember asking my science teacher way back in 6th grade why the Earth doesn't expand if new land is being added (we were learning about plate tectonics).

Leifmk · Jun 10, 2008, 02:59 AM

Quote:

Originally Posted by Mise

The energy is indeed stored in the chemical bonds. Breaking those bonds releases that energy. But you don't lose mass in doing so.

Actually, yes, you do. Chemical bonds have associated mass just like nuclear bonds.

Lord Olleus · Jun 14, 2008, 03:14 PM

But that mass is sooooo small that it can be ignored in 99.99999% of cases. Just like the mass gained due to kinetic energy can be ignored even upto speeds of 5% of the speed of light.

Truronian · Jun 16, 2008, 08:48 AM

I'm gonna hazard a guess that this guy is into jigsaws.

Perfection · Jun 17, 2008, 10:47 PM

Quote:

Originally Posted by Leifmk

Actually, yes, you do. Chemical bonds have associated mass just like nuclear bonds.

I'm not saying one way or another, but do you have a good source for this?

Leifmk · Jul 04, 2008, 01:42 AM

Quote:

Originally Posted by Perfection

I'm not saying one way or another, but do you have a good source for this?

How could it be otherwise? It's simple mass-energy equivalence. Binding energy is binding energy and has associated mass, regardless of which force is doing the binding.

EnglishEdward · Jul 20, 2008, 12:45 PM

Water vapour in the upper atmosphere very very slowly disassociates into oxygen and hydrogen (due to molecular collisions and cosmic rays) resulting in a gradual loss of mass as the hydrogen drifts off into interplanetary space.

Cardiac Kids · Jul 21, 2008, 12:05 AM

in fact i have no knowledge about it

Bomberman2 · Apr 18, 2009, 06:10 PM

Wasn't someone who said 'Matter was nothing
more than slow moving energy'? Even so
someone must be crazy to think that the
sun is causing the earth to grow. It's just
like saying that man is causing global warming.

civ_king · Apr 18, 2009, 11:41 PM

Quote:

Originally Posted by -Tomasz-

Gravity depends on the mass of a celestial body, suppose we can assume that the earth is expanding in diameter, how in the world would its mass increase?
And then again, if there is such phenomenon as gravity, then all the particles that make up earth would be attracted to the common centre of mass of the system (in this case Earth), so instead of expansion we should experience a big crunch (which is why spheres are the perfect shapes in the universe, for they are the only stable shape under the forces of gravity).

One more thing, I thought this was a science forum, what the hell with the conspiracy theories? Growing Earth? Hollow Earth? People living on the far side of the moon? Mission to land on the sun at night???

I'm pretty sure the earth isn't a perfect sphere

Lord Olleus · Apr 19, 2009, 02:42 AM

Thats because the earth is rotating and experiences centrifugal forces that make it bulge at the equator. Its still a perfect sphere to over a part in 1000 though.

Earthling · Apr 20, 2009, 11:04 AM

LOL

"Growing Earth?" This was absolutely crazy funny, though still a necro by some new guy.

"Mission to land on the sun at night" = Hilarious

Omni314 · May 03, 2009, 05:13 AM

I would say that its loosing mass if anything from all the satalites we're launching off it

JonathanStrange · May 03, 2009, 08:04 AM

We used to have many discussions like this back in grad school and we never came to any conclusion other than we weren't drinking enough.

peter grimes · May 04, 2009, 12:54 PM

Quote:

I would say that its loosing mass if anything from all the satalites we're launching off it

Is that not more than compensated for by the gain of material from meteorites and micro-meteorites?

Omni314 · May 11, 2009, 09:03 AM

Quote:

Originally Posted by peter grimes

Is that not more than compensated for by the gain of material from meteorites and micro-meteorites?

I can't say for sure but I would think that it is quite close which ever way

Jun 04, 2008, 11:34 AM	#21
Mise isle of lucy Join Date: Apr 2004 Location: London, UK Posts: 25,062	You can call it "just an approximation", but I'd call it "rounding to a sensible number of significant figures" Anyway, what you said in the last post seems unrelated to what you said in the post before it. The energy released from chemical reactions comes from the chemical bonds being broken, not from mass turning into energy. __________________ Come to fiftychat! It's where downtown hangs out!

Jun 04, 2008, 02:53 PM	#22
Perfection The Great Head. Join Date: Apr 2002 Location: Salisbury Plain Posts: 45,343 Images: 30	In any case, it doesn't produce more atoms, and most of it becomes heat. __________________ MORTALS: KNEEL BEFORE THE HEAD! Bask in its awesome might and wisdom. ~ Make your area in MountCFC - My Sim City 2000 Cities! - Don't like me? Ignore me! - Watch me KO creationism DO YOU LIKE FUN? JOIN FIFTYCHAT - The origin of Giant Death Robots

Jun 05, 2008, 05:17 AM	#25
Chieftess Moderator Join Date: Feb 2002 Location: Baltimore Posts: 23,546	I saw that one the other day. If the Earth expanded like that, then there should be no more volcanic eruptions, since there's a large, empty space. I remember asking my science teacher way back in 6th grade why the Earth doesn't expand if new land is being added (we were learning about plate tectonics). __________________ "Never trust an Aztec with nukes!" (Civ1 - unknown) \| 2nd user of the Ancient Style. South America (based on El Mencey's Map) \| N & S America (based on El Mencey's Map) \| C3C Scenario: 7,000 Turns Civ2 Earth for C3C \| Old Style Civ3 for C3C \| "Future is Wild" map How to upload multiple files to a post \| File Upload \| Paint Shop Pro 3.11 shareware (screenshot util - doesn't expire) \| Chieftess' Culture Flip Calc \| Don't wind up like this AI! \| resource icons file To download a patch: Select "Advanced" from the main menu, and go to "Check for Updates". \|\| My Web Journal (yes, it's a "blog")

Jun 14, 2008, 03:14 PM	#27
Lord Olleus Deity Join Date: Oct 2005 Location: England Posts: 4,985	But that mass is sooooo small that it can be ignored in 99.99999% of cases. Just like the mass gained due to kinetic energy can be ignored even upto speeds of 5% of the speed of light. __________________ Most zealously I seek for erudition. Much do I know, but to know all is my ambition. -Faust

Jun 16, 2008, 08:48 AM	#28
Truronian Quite unfamiliar Join Date: Aug 2005 Location: Near Cornwall Posts: 9,466 Images: 1	I'm gonna hazard a guess that this guy is into jigsaws. __________________ Better to serve in hell than to reign in Devon...

Jun 04, 2008, 04:33 PM	#23
uppi Deity Join Date: Feb 2007 Posts: 2,268	yes, I think we can all agree that there is no way that sunlight contributes any significant amount of mass to the earth and that an expanding earth is a silly idea. If anyone wants to further discuss mass/energy relations we can do that in another thread.

Jul 20, 2008, 12:45 PM	#31
EnglishEdward King Join Date: Jul 2008 Location: England Posts: 907	Water vapour in the upper atmosphere very very slowly disassociates into oxygen and hydrogen (due to molecular collisions and cosmic rays) resulting in a gradual loss of mass as the hydrogen drifts off into interplanetary space.

Jul 21, 2008, 12:05 AM	#32
Cardiac Kids Chieftain Join Date: Jun 2008 Posts: 53	in fact i have no knowledge about it

Apr 18, 2009, 06:10 PM	#33
Bomberman2 Chieftain Join Date: Feb 2009 Posts: 11	Matter Wasn't someone who said 'Matter was nothing more than slow moving energy'? Even so someone must be crazy to think that the sun is causing the earth to grow. It's just like saying that man is causing global warming.

Apr 19, 2009, 02:42 AM	#35
Lord Olleus Deity Join Date: Oct 2005 Location: England Posts: 4,985	Thats because the earth is rotating and experiences centrifugal forces that make it bulge at the equator. Its still a perfect sphere to over a part in 1000 though. __________________ Most zealously I seek for erudition. Much do I know, but to know all is my ambition. -Faust

Apr 20, 2009, 11:04 AM	#36
Earthling Deity Join Date: Nov 2008 Posts: 6,545	LOL "Growing Earth?" This was absolutely crazy funny, though still a necro by some new guy. "Mission to land on the sun at night" = Hilarious

May 03, 2009, 05:13 AM	#37
Omni314 Prince Join Date: Mar 2009 Location: Great Britain Posts: 582	I would say that its loosing mass if anything from all the satalites we're launching off it

May 03, 2009, 08:04 AM	#38
JonathanStrange PrinceWithA1000Enemies Join Date: Dec 2005 Location: TThe Dreaming Posts: 1,306	We used to have many discussions like this back in grad school and we never came to any conclusion other than we weren't drinking enough. __________________ "I don't run from danger. I walk ... very fast." -- JonathanStrange “Can a magician kill a man by magic?” Amelanchier asked Strange. Strange frowned. He seemed to dislike the question. “I suppose a magician might,” he admitted, “but a gentleman never could.” -- Elfland Tales "I will be a wise and tolerant monarch, dispensing justice fairly, and only setting nightmares to rip out the minds of the evil and wicked. Or just anybody I don't like."Morpheus, Balseraph leader for a time.

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