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Australia is drifting

Posted: Sat Sep 24, 2016 8:57 pm
by janto
Headline: Australia Is Drifting So Fast GPS Can't Keep Up

http://news.nationalgeographic.com/2016 ... tal-drift/

Image

Re: Australia is drifting

Posted: Sun Sep 25, 2016 9:18 am
by LoneBear
That seems to be moving a bit more than 4.9 feet...

But is it moving, or part of a global expansion? Also remember that they tend to diminish magnitudes by a factor of 10, so that 656 feet over the last 50 years is probably more like 6560--more like a mile and a quarter.

Re: Australia is drifting

Posted: Sun Sep 25, 2016 11:38 am
by janto
I'm quite certain the gif is for illustrative purposes only, not accuracy. Graphic designers don't usually obey technical accuracy when trying to communicate a message through visual impact, but rather focus on the impression. If it was realistic, from that distance, wouldn't be noticeable. Unless it moved, say, 60 miles instead?
But is it moving, or part of a global expansion?
Or both? That's a question I would ask you. Is expansion even being measured by anyone? Is it expanding now, or stopped? How would you prove it?

I thought I'd read an article a few years ago, describing how the ocean floor around Australia was rising quite rapidly (in terms of geological time), which might relate to these movements, but can't seem to locate the reference any longer.