The earth is growing?

[Mr. Wyndham]

Originally Posted by kdbolt70

I guess my biggest problem with this is that there is a finite amount of matter that makes up the earth. How does that "expand"? For the earth to the double in size, wouldn't it need twice the matter it originally possessed? Or is this assuming the matter of the earth is itself expanding, becoming less dense?

I think you hit it on the last part. Supposedly, the Earth's mantle (lava/magma) is twice as dense as the most desnse rock. But it's also fluid, and HOT...so the concept that it's expanding isn't suprising to me, at least. Heat up a filled ballon, or even steel....what happens? It expands. Pressurize a balloon...what happens when you let go? It expands.

Originally Posted by kdbolt70

Also, how did the Himalayas get created? he said there was no great raisings of land.

Personally -- I think there are still a few holes in his theory. This is one of them...there's tons of mountain ranges on the planet...and there's islands like Hawaii. The only thing to explain those phenominon sufficiently, imo, is plate tectonics. But maybe the percieved movement of the plates is actually the earth's expansion?

[kdbolt70]

Originally Posted by Milk 1027

The sun grows. So why not the earth?

The sun has nuclear fusion inside of it. It grows and shrinks over time. It eventually will expand greatly as it uses up most of its core hydrogen, and starts fusing heavier elements.

Originally Posted by Mr_Draco

Another thing, with his shrunk Earth, Earth would not have had enough gravity to hold on to much less create the atmosphere that it did when it did. In order for his theory to be partial correct, the Earth would have had to reach the size it is now hundreds of millions of years before Pangaea existed as there was an atmosphere and animals living on Pangaea. This would had 1 billion - 1.5 billion years to the age of the Earth. Since we know with fairly scientific certainty the age of the Earth and the length of time it takes for the processes to take place, there isn't enough time in the time frame for this theory to do what he claims it does. Considering Neal's main goal of creating this theory was to debunk what we currently believe about tectonics and about Pangaea, this little detail collides with this theory.

Actually, if we assume the earths matter is "expanding", it would have had much higher gravity on the surface than it does now. F = GMm/R²

[kdbolt70]

I'm working on a calculation to prove this is pretty much impossible, we'll see how it goes

(used to be an astrophysicist )

Also interesting:

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.[6] 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.[7]

The primary objections to an expanding Earth have centered around the lack of an accepted process by which the Earth's radius could increase and on the inability to find an actual increase of earth's radius by modern measurements. This issue, along with the evidence for the process of subduction, caused the scientific community to dismiss the theory of an expanding Earth.


Edit: Oh boy, I just read how he explained the expansion: "His divergence from older versions of Expanded Earth is his proposed mechanism of expansion, in which new mass is created by some sort of electron/positron pair production within the core of the Earth." So the earth is creating matter now. Interesting.

[Mr. Wyndham]

Originally Posted by kdbolt70

Edit: Oh boy, I just read how he explained the expansion: "His divergence from older versions of Expanded Earth is his proposed mechanism of expansion, in which new mass is created by some sort of electron/positron pair production within the core of the Earth." So the earth is creating matter now. Interesting.

I must've missed that.......

Color me very sceptical, now.

[DGthe3]

heres the problem with the water. There is currently some 1.4 billion cubic kilometres in the ocean. And half of this has arrived in the last ~65 million years? Thats nearly 11 cubic kilometres added every year during that time. Assume that everything from outer space that reaches the earth is made 100% out of water (not even close, but it doesn't mater). Then, lets say that the estimates are way off, and that there is actually 100x the amount of mater reaching the earth than is currently thought. So after all that, we are still off by a factor of 1000 in order to fill the oceans in 65 million years. Whoopsie. Guess that guy never figures anyone will do some math to counter his convincing video. Shame how that works.

[Georgie]

if the core creates matter its possible

[Georgie]

Originally Posted by kdbolt70

Edit: Oh boy, I just read how he explained the expansion: "His divergence from older versions of Expanded Earth is his proposed mechanism of expansion, in which new mass is created by some sort of electron/positron pair production within the core of the Earth." So the earth is creating matter now. Interesting.

now that would turn the current scientific community on its head

[kdbolt70]

Originally Posted by Georgie

if the core creates matter its possible

A fairly simple statement, however innumerably more difficult to believe than the fact that the earth is expanding.

[CamaroSpike23]

Originally Posted by XanthosV6

Completely true.

All gases are fluids. Fluid =/= liquid, necessarily.
- Xanthos

correct.

Originally Posted by duder4thgen

One thing I never got about this global warming thing, if water expands when it freezes into ice, how is melting it going to cause the oceans to rise?

we went over this a while back in another thread. ill give a basic recap: the ice caps are fresh water, floating in saltwater. so they are slightly more buoyant than if they were floating in regular freshwater. now anywhere from 8-15% of ice will be above the surface, waters expansion rate at freezing however is lower than that. so even tho it expands as it freezes, the amount of ice above the surface is what will really add to the ocean level

[Kyle2k]

Originally Posted by XanthosV6

Completely true.

All gases are fluids. Fluid =/= liquid, necessarily.
- Xanthos

However, I think all liquids can be fluids, but all fluids can't be liquids. In order to be a gas it needs to be compressible.

[CamaroSpike23]

Originally Posted by Kyle2k

However, I think all liquids can be fluids, but all fluids can't be liquids. In order to be a gas it needs to be compressible.

all liquids are fluids. all gases are fluids.

[DGthe3]

Originally Posted by Georgie

if the core creates matter its possible

If is a wonderful word isn't it? For example, if my aunts name was Bob she'd be my uncle (there are other versions of that statement that I don't post )

Originally Posted by CamaroSpike23

correct.




we went over this a while back in another thread. ill give a basic recap: the ice caps are fresh water, floating in saltwater. so they are slightly more buoyant than if they were floating in regular freshwater. now anywhere from 8-15% of ice will be above the surface, waters expansion rate at freezing however is lower than that. so even tho it expands as it freezes, the amount of ice above the surface is what will really add to the ocean level

Well, that and the fact that Greenland and Antarctica are land covered in ice, so their glaciers aren't displacing any water.

[Georgie]

of course if is a wonderful word, what if we could fly what if we could make this car go faster

it helps lead into how and why and all those good things, don't discount if

[PQ]

Ok, assuming the rest of the theory were plausible. How about the moon. Surely a shrunken earth couldn't create the type of gravitational orbit condition for a mass the size of the moon to hold it in orbit. And then push it into a further or wider orbit as the earth grew without pulling the moon in on it's self. Or pushing it away.

If not then the moon would have had to be introduced at a later time.