I have been reading about that. FEs claim that GPS doesnt exist and is all ground based just like LORAN was:
The problem with that claim is that you can point directional GPS antennas at the sky and see that the signals are coming from discrete, slowly moving points whose locations are accurately given by mathematical models that assume an ellipsoidal earth of a very specific mass, shape and size.
Also, GPS transmits on the L-band at 1575.42 MHz, far above the ionosphere's critical frequency so it passes right through it from space. LORAN-C transmits (or transmitted, in the US) at only 100 kHz, well below the AM broadcast band (535-1705 kHz in the USA) and far below the ionosphere's critical frequency so it is reflected back toward earth. Because of the much longer wavelength and the somewhat unpredictable, non-line-of-sight path, LORAN-C was much less accurate than GPS.
Shouldnt radio signals reach everywhere in the world since there is not ground to stop them? Radio towers would not need to be built very tall since there is no horizon. That would mean it is possible to see other cities thousands of miles away with a radio telescope.
Yup.
Of course, the atmosphere could effect radio waves.
And it does. Most analyses of tropospheric radio wave propagation model the earth as having 4/3 its actual radius to account for atmospheric refraction. The same thing happens at optical wavelengths, so sunset/sunrise appears to occur when the sun is actually slightly below the horizon. If the earth were flat, refraction as well as geometry would keep the sun from ever appearing to set anywhere.
Well, the sun cannot set or rise in a flat earth since it is 3000 miles up so you are right.
Here is a 3D model of it:
In this Image you can see the sun as a dot in the right above the edge of the earth.
In this one you see the sun from the other edge.
It never sets and If it did, there would not be timezones.
Or it would not be possible for the sun to be under the clouds:
There is so much wrong with this idea of flat earth...
As Alfred Russel Wallace's experience showed, Flat-Earthers are remarkably good at not seeing anything they don't want to...
This is a letter from the John Hampden directed to Russel`s wife soon after he lost the weager:
"Mrs. Wallace,—Madam, if your infernal thief of a husband is brought home some day on a hurdle, with every bone in his head smashed to pulp, you will know the reason. Do you tell him from me he is a lying infernal thief, and as sure as his name is Wallace he never dies in his bed.
"You must be a miserable wretch to be obliged to live with a convicted felon. Do not think or let him think I have done with him.
"John Hampden."
Blimey....was he an ancestor of The Blunder???
Maybe.
Is he a flat earther?
I have run into a lot of flat-Earthers lately. Along the way I have posted 16 illustrations and accompanying arguments on Photobucket. (I hope it's not as slow for you guys as it is for me on my portable wi-fi hotspot.)
I humbly request that anyone who is interested review as many of them as you like, and point out anything that you think should be changed. I don't mind PMs if you feel that would be warranted. In your responses, please include the number of the disproof along with your suggestions. This will make it easier for others to keep track of which ones have gotten feedback, in case they want to choose some others to look at.
http://s813.photobucket.com/user/astrobrant2/library/Disproofs%20of%20Flat%20Earth?sort=6&page=1
Clear skies,
Brant
I note that pictures 2 and 8 show different views of illumination of the Earth as required by FE theory at equinox and southern summer solstice.
Just a thought, but is there a way to show how the Earth would be illuminated at a few other times of the year?
Ideally, would it be possible to create an animation showing the illumination of the FE over a 24 hour period for a bunch of dates through the year - say, on the first day of each month of the year? (Even better would be an animation showing it continuously for the whole year, but I assume that would be tricky to do.)
I'm currently finding it hard to visualise how the night-time shadow must be required to move around the Earth in a 24 hour period, particularly around the solstices. Just looking at these animations must surely raise some questions in some doubters' minds...
Flat earthers argue the sun is a spotlight.
I think I have what you ask:
Here is a test of that.
This is a picture of the sun at the Equinox that I made myself with model to scale:
As you can see, the sun rises first before south of the equator. This is wrong since the sun iluminates the hemispheres equally in the equinox.
