[Tycho?]

http://www.google.com http://www.wikipedia.com

Meh, I stopped watching. That isn't actually showing you how to visualize anything, its just explaining it (in a way which seems quite innaccurate, but then I dont know much about these proposed higher dimensions). For example, they describe the 4th dimension (time) as a line, presumably seperate from 3 dimensional space. Which it is not. Just as the 3 spatial dimensions are at right angles, the 4th is at a right angle to that [err, is this a valid statement?], giving us 4 dimensional space time. Which is exactly why its so hard (impossible, I think) to visualize. That little animation does not assist in that.

Uh, is english your native language? Cause it could use some work. I assume "mints" means minutes. And with Venus's greenhouse effect and extremely thick atmosphere it would take longer than earth to cool down significantly

Well the asteriod belt would by flying off into space as well. And has been mentioned, it probably wouldn't matter anyway. The asteriod belt isn't like how its portrayed in movies, with rocks constantly smashing into eachother, providing a daring challenge to any space craft flying through. Its mostly empty in real life. When one of the voyager probes was passing through the asterioid belt, they had to alter its course to get it close enough to an asteroid to study it.

Yeah, if its a small one and the goal is to just blow it apart. But if its a big one, like end of humanity kind of big, then it wont really matter if its in pieces or not. Your still going to be adding all that heat and dust to earths atmosphere, causing huge climate change.

Very true. Its now believed that many asteriods are little more than clumps of rock held together by gravity alone. Shooting something into an object like this would just disrupt it, but not deflect its course.

We get plenty of idiots here' date=' usually they arn't as aggresive as you are though. I am quite aware of what is going to happen when our sun goes into its red giant phase. This will not be for at least hundreds of millions of years, if not billions. If you can show me a NASA paper, or any other reputable peer reviewed paper that says the sun will go into a red giant phase in [i']a few thousand years[/i], I will take back what I say. (or if you can show me that a red giant sun would cause temperatures of 1 million kelvin on mars). My position is that you made up some bullshit. Post your sources, show me that the sun will go red giant in a few thousand years. Show me that it will result in temperatures of 1 million Kelvin on mars. Since you arn't going to do that, shut the hell up.

You are misunderstanding. You dont "bend" the laws of physics. If you do, it just means that our understanding of that particular phenomenon is incomplete. Physics is not rigid, it is always changing as new theories come about. So this may mean for example that a way to travel faster than c will be discovered. This does not mean you are breaking a physical law (law of phyics is a term with little meaning anyway), only that our initial understanding was not complete. Its unlikely though, given our current understanding.

I hate it when people make stuff up to impress other people. Mars will not become 1 million kelvin. 1 million kelvin is a great deal hotter than the surface of the sun, only towards the core where fusion is taking place are you going to get temperatures that high. Mars will never be 1 million kelvin nor anywhere close to it. And you should be careful about insulting people here, since you were the one who said that the earth would be uninhabitable in a few thousand years due to the sun, which pretty much removes any credibilty you may have had.

You keep on saying that you arn't seeing this mentioned or can't find any info about it. Just use google. I typed in "meteor norway" and the first hit told me all I wanted to know.

Can anybody make sense out of the above post? I know I can't.

A 400m meteor is fairly large; debris from the impact could get large enough to hit the surface of the earth. Although I doubt much, if any damage would be done. A much larger object hitting the moon could cause significant damage to earth however.

This seems like the sort of thing that experiments should/have been conducted on. Have mice get pregnant and give birth on the ISS or something, observe the results.

Uh, well, your height changes while on earth actually. While walking around your back gets compressed due to gravity. If you get up in the morning, measure your height, and then measure it again after being on your feet the whole day you will be shorter. With no gravity to compress you, you will just "stretch out" in space, and compress back down after you stood in gravity.

Be careful what you say is laughable when you dont seem to know what you're talking about. Time dilation do to SR and GR (SR in particular) has a strong theoretical background, and more importantly has been confirmed to exist. What information are we lacking, exactly?

Well this is a science forum! And a good one, a number of people in the physics section are actually physicists; its what they do for a living. Certainly adds some legitimacy to the posts that you dont get in most other places on the net.

...does lack of sleep actually kill braincells? I'd be skeptical that lack of sleep could cause you physical brain damage, regardless of how often it occured.

Oh, it looks to you like entropy has been redefined to fit the Second Law? In your highly educated opinion? Just because you dont know what you're talking about hardly means that the entire physics community is wrong. Go and talk to that physics prof you mentioned, that at least is a good idea.

This 3rd point is kinda messed up. What force is being talked about here? And the passage of time can be manipluated in some ways, at least in comparison to others. You can move at an extremely high velocity relative to some observer, plus a strong gravitational field will indeed alter how time passes in comparison to someone else. And I dont see what any of this has to do with athiesm or religion of any kind.