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[RT] Violent, head-to-head crash between Earth and another planet created the moon - Page 6

post #51 of 72
I think its logical to assume that this is how the moon came to be but nobody on Earth can prove beyond anything other than theory that it is the case so arguing about it here on OCN seems kind of pointless...
post #52 of 72
Quote:
Originally Posted by jsc1973 View Post

Possibly, but I think they got this one pretty much right. There aren't many explanations for the existence of the Earth-Moon system in its current configuration that make any sense. The "Theia" hypothesis explains how the Earth could have such a large satellite, and how the Earth is so iron-rich compared to the Moon.

There are some things I think they're full of it on. I think "dark matter" and "dark energy" belong in the same category with Ptolemy's epicycles and Newton's lumineferous aether, stuff they made up to make their observations fit existing theory, rather than seriously question the veracity of the whole concept. But they're probably spot-on about how the Moon got to be where it is.

If they claimed that they knew what dark matter and dark energy were, then I might agree with you that they're full of it. However, all true astronomers say they do not know what dark energy and dark matter are. They explicitly state that based on observations of matter and energy they can see, and what they know about physics, some sort of matter and energy have to exist to explain certain interactions. It is entirely possible that the interactions are caused by forces we have no knowledge about. It is also entirely possible that there is matter that we aren't able to observe that exists, hence it being called dark matter. "Dark matter" and "dark energy" are simply placeholders until we are able to learn more.
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post #53 of 72
Cleaned
Quote:
Originally Posted by Lady Fitzgerald View Post

And ten to twenty years from now, there will be yet another theory on how the moon was formed.

See the quote in my sig. It is relevant. Science is forever changing and forever coming up with better ideas but Science is the closest thing to the truth. This is what most people don't get about science. It's a tool but a very powerful tool that helps us understand the world we live in. Science also involves using observations and gathering of information to reach a conclusion. Those conclusions are constantly put under the microscope to see if new information comes through.


Theories are facts. Evolution is a fact because there is strong scientific evidence to back that up but most people mix up the meaning of scientific theory with the word theory because they see the word theory in it and automatically jump the gun and disprove every observational science there is.
Quote:
Is Evolution a Theory or a Fact?

It is both. But that answer requires looking more deeply at the meanings of the words "theory" and "fact."

In everyday usage, "theory" often refers to a hunch or a speculation. When people say, "I have a theory about why that happened," they are often drawing a conclusion based on fragmentary or inconclusive evidence.

The formal scientific definition of theory is quite different from the everyday meaning of the word. It refers to a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence.

Many scientific theories are so well-established that no new evidence is likely to alter them substantially. For example, no new evidence will demonstrate that the Earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the Earth is not divided into solid plates that have moved over geological timescales (the theory of plate tectonics). Like these other foundational scientific theories, the theory of evolution is supported by so many observations and confirming experiments that scientists are confident that the basic components of the theory will not be overturned by new evidence. However, like all scientific theories, the theory of evolution is subject to continuing refinement as new areas of science emerge or as new technologies enable observations and experiments that were not possible previously.

http://www.nas.edu/evolution/TheoryOrFact.html
post #54 of 72
Quote:
Originally Posted by Majin SSJ Eric View Post

I think its logical to assume that this is how the moon came to be but nobody on Earth can prove beyond anything other than theory that it is the case so arguing about it here on OCN seems kind of pointless...

i don't recall any scientific inquiry starting with, "we'll never prove it . ."

it was just 12 years ago planetary accretion, which happened over 4.6 billion years ago in our solar system, was based on really no more than assumptions until an astronaut shook a bag of salt in space and observed the grains starting to circle and cling to each other forming larger particles.

CERN testing in the large hadron collider confirmed it.

with technology advancing, because of science advancing, it can lead to further discoveries. yeah it gets diluted, as some have pointed out, in the mainstream media and what not. but that's likely because people don't discuss it enough. but you are entitled to your unsolicited opinion and don't need to take part in the discussion.

well except, to add what you had for breakfast . . thumb.gif
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post #55 of 72
I blame the History channel and to a lesser degree Discovery and even NGC for promoting hypotheses as if they are facts. Other mainstream media can barely tell the difference between science and pseudoscience these days. That's why it appears as if "science" is just randomly guessing to the barely informed average joe that picks up some sciency stuff here and there. Meanwhile in reality we've never been more able to prove an hypothesis than during our time and are constantly improving these methods.
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post #56 of 72
Quote:
Originally Posted by Lady Fitzgerald View Post

And ten to twenty years from now, there will be yet another theory on how the moon was formed.

you could be right! When i was young i was told the moon is made of cheese tongue.gif
post #57 of 72
Quote:
Originally Posted by ladcrooks View Post

Quote:
Originally Posted by Lady Fitzgerald View Post

And ten to twenty years from now, there will be yet another theory on how the moon was formed.

you could be right! When i was young i was told the moon is made of cheese tongue.gif

You must be older then me since, by the time I heard that, it was green cheese. wink.gif
     
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post #58 of 72

Let's keep it on topic guys. This is not about evolution, and whether it is true or not. 

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post #59 of 72
Quote:
Originally Posted by looniam View Post

theory in everyday usage doesn't need to be the scientific definition. wink.gif

It does when we're talking about science...
post #60 of 72
Considering the universe is only 51 years old I'm not sure what the arguments are about. I must be undecided. biggrin.giftongue.gif

https://en.wikipedia.org/wiki/Solipsism
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