The_Rev Posted January 23, 2019 Share Posted January 23, 2019 On 22/01/2019 at 11:07, Chindie said: This reminds me of a friend of mine who insists that 'the South' in the UK is literally London and Kent, and everything else is the North. I used to work with a Geordie bloke who insisted 'The South' started at South Shields. Link to comment Share on other sites More sharing options...
bickster Posted January 23, 2019 Moderator Share Posted January 23, 2019 30 minutes ago, The_Rev said: I used to work with a Geordie bloke who insisted 'The South' started at South Shields. That's South Scotland though Link to comment Share on other sites More sharing options...
choffer Posted January 23, 2019 VT Supporter Share Posted January 23, 2019 26 minutes ago, bickster said: That's South Scotland though Aye. You're all southerners to me. Link to comment Share on other sites More sharing options...
Xann Posted January 28, 2019 Share Posted January 28, 2019 (edited) Accent had me lunging for pause, but it's pretty good this. That you get the movement of individual divisions is neat. Edited January 28, 2019 by Xann 3 1 Link to comment Share on other sites More sharing options...
Lichfield Dean Posted February 11, 2019 VT Supporter Share Posted February 11, 2019 Magnetic north (in red) has wandered such that it is now pretty much directly in line with geographic north as viewed from Britain: Link to comment Share on other sites More sharing options...
mjmooney Posted February 11, 2019 VT Supporter Share Posted February 11, 2019 8 minutes ago, Lichfield Dean said: Magnetic north (in red) has wandered such that it is now pretty much directly in line with geographic north as viewed from Britain: I hope the poles aren't about to flip (which will eventually happen) anytime soon. The effect on climate could be a bit dramatic. 1 Link to comment Share on other sites More sharing options...
limpid Posted February 11, 2019 Administrator Share Posted February 11, 2019 1 hour ago, mjmooney said: I hope the poles aren't about to flip (which will eventually happen) anytime soon. The effect on climate could be a bit dramatic. In what way? Link to comment Share on other sites More sharing options...
mjmooney Posted February 11, 2019 VT Supporter Share Posted February 11, 2019 12 minutes ago, limpid said: In what way? Mea culpa. I've always understood it would cause climate problems. But a bit of research seems to indicate that this is not the case - although it seems that (for example) satellite communications could be adversely affected. 2 Link to comment Share on other sites More sharing options...
Lichfield Dean Posted February 11, 2019 VT Supporter Share Posted February 11, 2019 2 hours ago, mjmooney said: I hope the poles aren't about to flip (which will eventually happen) anytime soon. The effect on climate could be a bit dramatic. I understand that the experts don't think this is indicative of a pole switch as the South pole isn't moving. In fact, one guy supposedly thinks that the North pole is actually the sum of two magnetic hotspots, one under Canada and one under Siberia and that the moving of the pole we see here is simply the waxing and waning of those two areas in their respective strengths. Could be complete bunkum though. The biggest problem with the pole switch is believed to be the collapse of the magnetosphere during the transition, opening the surface up to all sorts of nasty cosmic rays and radiation from the Sun. Would be a bad time for electronics I expect but a good time for the sunscreen manufacturers. Link to comment Share on other sites More sharing options...
chrisp65 Posted February 11, 2019 Share Posted February 11, 2019 I'd be genuinely pissed off if I was a penguin and I had to up sticks and move all that way up north. 3 1 Link to comment Share on other sites More sharing options...
limpid Posted February 11, 2019 Administrator Share Posted February 11, 2019 4 minutes ago, Lichfield Dean said: The biggest problem with the pole switch is believed to be the collapse of the magnetosphere during the transition, opening the surface up to all sorts of nasty cosmic rays and radiation from the Sun. Would be a bad time for electronics I expect but a good time for the sunscreen manufacturers. Believed by whom? I'm happy to be corrected, but 6,000,000,000, 000,000,000,000,000 kg of mass (mainly liquid iron) spinning is what generates the magnetosphere. It's not going to stop spinning. 1 Link to comment Share on other sites More sharing options...
Popular Post sharkyvilla Posted February 11, 2019 Popular Post Share Posted February 11, 2019 Once we leave the EU the Poles can do whatever the **** they want 2 4 Link to comment Share on other sites More sharing options...
Lichfield Dean Posted February 11, 2019 VT Supporter Share Posted February 11, 2019 1 hour ago, limpid said: Believed by whom? I'm happy to be corrected, but 6,000,000,000, 000,000,000,000,000 kg of mass (mainly liquid iron) spinning is what generates the magnetosphere. It's not going to stop spinning. There is plenty of evidence in the geological record. The earth's magnetic field becomes unstable during the process of transition. The fields are generated as you say due to the iron motion in the core, but simulations show that this motion is basically unstable and occasionally it all goes nuts and you end up with the poles switching. The magnetosphere won't vanish entirely but it will be chaotic and can be hugely diminished during this time, which seems to be for around a hundred years or so. The fields always seem to strengthen back up afterwards fortunately. Link to comment Share on other sites More sharing options...
limpid Posted February 11, 2019 Administrator Share Posted February 11, 2019 21 minutes ago, Lichfield Dean said: There is plenty of evidence in the geological record. The earth's magnetic field becomes unstable during the process of transition. The fields are generated as you say due to the iron motion in the core, but simulations show that this motion is basically unstable and occasionally it all goes nuts and you end up with the poles switching. The magnetosphere won't vanish entirely but it will be chaotic and can be hugely diminished during this time, which seems to be for around a hundred years or so. The fields always seem to strengthen back up afterwards fortunately. There is evidence of the magnetic poles flipping (and generally meandering around). What energy is going to overcome the inertia of that much mass spinning, because for the magnetosphere to diminish noticeably you need to add or remove energy to counteract that spin. What is that energy exchange mechanism? Link to comment Share on other sites More sharing options...
MrDuck Posted March 5, 2019 Share Posted March 5, 2019 Waterways of Europe: 2 Link to comment Share on other sites More sharing options...
Vive_La_Villa Posted March 5, 2019 Share Posted March 5, 2019 On 18/12/2018 at 08:44, Stevo985 said: That tiny sliver of Russia at the top is fascinating me. It must squeeze past the edge of the UK and then just miss the Faroes, then squeeze past greenland and go over the arctic to Russia? Maybe it being a globe makes it easier to picture, but just from my head I'm really surprised at that bit. This is fascinating but I still can’t see how it can hit Russia. Link to comment Share on other sites More sharing options...
Popular Post HanoiVillan Posted March 5, 2019 Popular Post Share Posted March 5, 2019 4 hours ago, Vive_La_Villa said: This is fascinating but I still can’t see how it can hit Russia. You can see it on Google Maps if you zoom out pretty far: 5 1 Link to comment Share on other sites More sharing options...
Vive_La_Villa Posted March 5, 2019 Share Posted March 5, 2019 (edited) 2 hours ago, HanoiVillan said: You can see it on Google Maps if you zoom out pretty far: Thanks. How cool is that? I don’t know many people that would find this as fascinating as I do so this thread is now officially my favourite thread of all time. Edited March 5, 2019 by Vive_La_Villa 1 Link to comment Share on other sites More sharing options...
Mozzavfc Posted March 5, 2019 Share Posted March 5, 2019 Location of every city in Europe founded by the Roman Empire outside of Italy 4 Link to comment Share on other sites More sharing options...
Popular Post wilko154 Posted March 5, 2019 Popular Post Share Posted March 5, 2019 Maps showing which export makes each country the most money. How do Africa have some of the richest resources but also be so poor?! 5 Link to comment Share on other sites More sharing options...
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