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Prove a spherical earth? (self.Astronomy)

nukemtruthem が 投稿

I want to disprove FE, can you prove a spherical earth? I am anticipating bad answers so I will probably ignore all bad answers.

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[–]__Augustus_ 9ポイント10ポイント  (1子コメント)

You suck.

[–]The_Dead_See 2ポイント3ポイント  (1子コメント)

Ever used your smartphone maps app and actually got to the destination you typed in? Ever got on a plane and actually landed at the airport you expected to instead of somewhere ten miles off the coast? Yep that's because of the global satellite positioning system that works because of spherical earth math.

Oh sorry I forgot. You guys think that all pilots, mathematicians, app coders, communications companies, air traffic controllers, cartographers, and everyone else on the planet is part of a global hoax being played only on you. Never mind, move along.

[–]nukemtruthem[S] -2ポイント-1ポイント  (0子コメント)

GPS is possible on a flat earth, explain how it's not possible. Probably one of the worst answers ever.

[–]astronomy-geek 2ポイント3ポイント  (1子コメント)

If you really need conclusive evidence that the Earth is a sphere (excluding going out into space and looking back at the Earth), you could simply test to see if the parallel postulate holds on the surface of the Earth. That is, see if any two lines that originally are parallel eventually cross (implying a spherical Earth, think about lines of longitude) or remain parallel (implying a flat Earth). You could also test this by seeing if the interior angles of a triangle (whose corners are three arbitrary locations on the surface of the Earth that are sufficiently far away from each other) add up to 180°. If they do, then surface of the Earth is flat. If they add up to a value greater than 180°, then the surface of the Earth is positively curved, implying a spherical Earth.

[–]nukemtruthem[S] 0ポイント1ポイント  (0子コメント)

I'll check that out tomorrow and let you know if that actually proves a spherical earth. Thanks!

[–]Vietoris[🍰] 2ポイント3ポイント  (2子コメント)

Please do not waste your time to answer this guy. He has a set of memorized answers for simplistic arguments.

So if you show him a picture he will say "CGI", if you talk about gravity he will say "gravity is fake", if you talk about GPS he will say that "GPS is ground based", if you say that other planets are spheres he will say "Earth is not a planet".

However, if you say anything where he doesn't have an easy rebuttal, he will simply ask you to reword your post and then ignore it completely.

[–]nukemtruthem[S] 0ポイント1ポイント  (1子コメント)

Pictures: You clearly have not done any bit of research, there is a mountain slide of proof photos from nasa are cgi. I never said GPS is ground based, while most communication is done on the ground I believe satellites are just high altitude balloons. There is some proof for that but let's not get into that. I never said earth is not a planet as my only explanation as to other planets being a sphere, you left out how illogical it is to think we live on a ball, cause things in the sky also appear to be a ball. And again that's false, if you bring up a argument I have no response to I will admit I have no response. There is this one case where I am not understanding someone on how they think stars prove a globe, so I asked for them to elaborate.

[–]Vietoris[🍰] 1ポイント2ポイント  (0子コメント)

There is this one case where I am not understanding someone on how they think stars prove a globe, so I asked for them to elaborate.

Yes, that was me, in this comment

As I said, you asked me to reword or elaborate, and then ignored my answer completely to start a new thread the next morning.

[–]kobullso 2ポイント3ポイント  (2子コメント)

2 off the top of my head.1 Change in constelations. If the earth was flat everyone would see the same ones. They don't.

2 The sticks and shadows experiment was a pretty ingenious way they figured it out over 1000 years ago.

edit. thought of another. Being able to see farther by getting higher. If things dissappear like flat earth predicts then being high doesn't make the object any closer. In fact it makes it further away. But it is pretty easy to see that we see further higher.

[–]nukemtruthem[S] 0ポイント1ポイント  (0子コメント)

1: watch Eric dubays star trails video. 2: The sun is smaller and closer, so shadows are the same. 3: We see better at higher altitudes cause there are less obstructions such as dirt, dust, light, dark, shadows, sand, objects, Haze, rain, snow, leaves, heat, etc etc.

[–]__Augustus_ 1ポイント2ポイント  (3子コメント)

Why can you see clouds at the horizon? If the earth were flat they'd be at the same apparent altitude.