by BDanielMayfield » Sat May 31, 2014 2:25 pm
Beyond wrote:You mean James Cagney has been wrong all these years?
Click to play embedded YouTube video.
Oh
whell.
Being on top wasn't all that swell for him, was it?
Nitpicker wrote:eigerzoom wrote:so southern lights are always red / yellow and northern lights always blue / green
I'll stop right there. It is not true.
So true Nitpicker, but is there any difference at all between northern and southern aurora, other than location? From what I've read there isn't any difference.
Nah. It just raises more questions, like
Why does the Earth's magnetic field flip,
When will it next flip,
What will happen when it flips, and
Who gives a flip (are Austrailans rooting for it to flip).
Edit: the notion of positive vs negative polarity is entirely contrived. It is based on the human decision to nominate positive and negative electric charge in the way we do. So there is no true top of the universe, the galaxy, the solar system, or the world.
Stated like a
true southerner. In the interest of breaking with Northward bias (and because I am partly contrarian) I propose that henceforth half of all maps, globes, star charts, etc. should be produced with South on top. Top of the evening to you sir.
Bruce
[quote="Beyond"]You mean James Cagney has been wrong all these years? [youtube]http://www.youtube.com/watch?v=4t4YiXWPBpo[/youtube] Oh [s]w[/s]hell.[/quote]
Being on top wasn't all that swell for him, was it? :lol2:
[quote="Nitpicker"][quote="eigerzoom"]so southern lights are always red / yellow and northern lights always blue / green
[/quote]
I'll stop right there. It is not true.[/quote]
So true Nitpicker, but is there any difference at all between northern and southern aurora, other than location? From what I've read there isn't any difference.
[quote]But this article may answer some of your questions:
[url]http://en.wikipedia.org/wiki/Earth%27s_magnetic_field#Dipolar_approximation[/url][/quote]
Nah. It just raises more questions, like [b]Why[/b] does the Earth's magnetic field flip, [b]When[/b] will it next flip, [b]What[/b] will happen when it flips, and [b]Who[/b] gives a flip (are Austrailans rooting for it to flip). :D
[quote][i]Edit: the notion of positive vs negative polarity is entirely contrived. It is based on the human decision to nominate positive and negative electric charge in the way we do. So there is no true top of the universe, the galaxy, the solar system, or the world.[/i][/quote]
Stated like a [u]true[/u] southerner. In the interest of breaking with Northward bias (and because I am partly contrarian) I propose that henceforth half of all maps, globes, star charts, etc. should be produced with South on top. Top of the evening to you sir.
Bruce