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Topics - robinofloxley

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Flat Earth Community / Has the flat earth movement flatlined?
« on: May 22, 2019, 11:54:55 AM »
Like many, I came across the flat earth movement a while back and the idea that anyone would believe in such an idea seemed ridiculous. However I was intrigued, came on here and watched various videos. I quickly realised that I had been guilty of sloppy thinking in some areas - for example, I had just assumed that I could see the curve from a commercial airliner at 35k feet. No, you can't, realise that now. I learned a lot of really interesting stuff as a by-product of what I read and watched. I know a lot more about maps and map projections then I ever did. I now know that the zero longitude line is actually 100 metres away from the marking strip at Greenwich I stood astride for my pointless selfie a couple of years back - and I know why. I watched the 2017 eclipse (unforgettable, magical experience), watched the shadow move from West to East - and I now know why that happened too. All thanks to questions raised here and elsewhere.

There have been many great questions and great answers too, but to me it's all going a bit stale now. Same old re-hashed questions over and over again, haven't seen a new or interesting one in ages. On the YouTube side, there are some thoroughly excellent FE debunkers out there who (to my satisfaction) have utterly debunked pretty much every FE argument. Trouble is they now seem to have run out of new and interesting stuff to debunk and it's all a bit flat there too. Now it seems FE is debunking itself, examples are Bob Knodel and the farcical ring laser gyroscope experiment and Jeranism's "interesting" experiment. And now we have Eric Dubay attacking pretty much everybody else.

So has the whole thing simply run out of steam now?

Flat Earth Investigations / Antipodal journeys
« on: November 01, 2018, 03:14:31 PM »
One of the problems with flat earth discussions is that there is no consensus behind any particular flat map, however the one thing I assume everyone does agree on is that whatever it looks like, it will be flat.

On any flat surface, there can only be one shortest route between any two points - a straight line - and therefore only ever one sensible direction of travel if you want to get to your destination via the shortest route.

On a sphere, the shortest route between two points is a great circle arc and in general there is only one great circle passing through both points and hence one shortest route. The exception occurs when the two points are antipodal (directly opposite each other). In this case many great circle routes are possible so there is no longer a single shortest route, there are many.

So for example, on a globe earth, the UK and New Zealand are almost antipodal, therefore you can head off in any direction you like from the UK, follow a great circle route for about 12500 miles and you will be more or less in New Zealand. On a globe travelling in opposite directions yet ending up in the same place makes perfect sense, on a flat earth it doesn't.

In reality, from the UK, I can fly west via Los Angeles to New Zealand or I can fly east via Tokyo and there are plenty of other routes to choose from such as via Hong Kong, Dubai, Manilla etc. These routes all have similar flight durations and cost similar amounts of money.

Anyone care to try and explain?

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