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Author Topic:   Flat Earth Society
ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 5 of 119 (706308)
09-09-2013 12:47 PM
Reply to: Message 1 by bluegenes
09-09-2013 2:53 AM


Of course, a lot of people do believe in a(n approximately) spherical earth for poor reasons. My father used to cite the fact that ships disappear over the horizon a little bit at a time - which indicates curvature but not necesarily a complete sphere.

There is no magic bullet that definitively proves a spherical earth; it's an accumulation of little bits of evidence. Like evolution, it's easy to argue against individual points but it's unreasonable to disregard the whole weight of evidence at once.


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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 16 of 119 (706487)
09-12-2013 12:23 PM
Reply to: Message 14 by bluegenes
09-12-2013 10:46 AM


Re: from the FAQ
bluegenes writes:

It's often been noted by the society that round earthers will suggest what they think would be experiments which would falsify a flat earth, but that they seem to lack the confidence to actually go out and do them.


I remember reading about an experiment that was done a hundred years or so ago in England:

There was a stretch of canal that was perfectly straight for six miles or so. They set up markers at a fixed height above the water at each end and in the middle. Sighting along the markers, it was observed that they fell in a straight line, indicating that the surface of the water was perfectly flat.

Unfortunately, the actual data has been lost and the canal no longer exists.


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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 32 of 119 (706543)
09-13-2013 12:34 PM
Reply to: Message 30 by New Cat's Eye
09-13-2013 12:25 PM


Catholic Scientist writes:

I think its so they can have the ice wall (Antarctica) surrounding everything and holding the oceans in.


Global warming is going to be a problem - if they believe in it.

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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 44 of 119 (819044)
09-05-2017 12:38 PM
Reply to: Message 38 by CRR
09-04-2017 8:06 PM


CRR writes:

Do the physics and you will find this is only true on a flat Earth. In fact, we Round Earthers believe that if a bullet is fired level fast enough (>11.2 km/s) it will never hit the ground!


As long as gravity is orthogonal to the surface, I don't think it makes any difference whether the surface is flat or convex - gravity will pull the bullet toward the surface. To fit the physics, a flat earth would need "lines of gravity" that were parallel instead of convergent at the center of mass. The theory would be different but the observations would be the same.

As for escape velocity, the question is: What happens to gravity when you're beyond the edge of the flat earth? That would depend on the alternate theory of how gravity works.


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Replies to this message:
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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 52 of 119 (819123)
09-06-2017 3:17 PM
Reply to: Message 46 by CRR
09-05-2017 9:50 PM


Re: Neil deGrasse Tyson is a Flat Earther!
CRR writes:

I must admit I was surprised myself at the difference the Earth's curvature could make over a few kilometers. I wonder where we could find a flat (i.e. spherical) plain of sufficient extent to confirm this experimentally?


See the Bedford Level Experiment.

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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 84 of 119 (819265)
09-08-2017 12:17 PM
Reply to: Message 78 by Porkncheese
09-08-2017 10:57 AM


Re: Crepuscular rays
Porkncheese writes:

Can someone please add something constructive


How far away do they think the sun is?

This message is a reply to:
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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 86 of 119 (819269)
09-08-2017 12:54 PM
Reply to: Message 85 by Porkncheese
09-08-2017 12:33 PM


Re: Crepuscular rays
Porkncheese writes:

According to google its 149.6 million km.


No, we think it's 149.6 million km. I asked you what they think.

In Message 62 you said, "They claim these rays ought to be vertical and parallel (as I also envisage) but that their angled rays show that the sun is not far from us." So how far from us do "they" think the sun is?

The point being that we have other ways of measuring the distance to the sun. Even if the crepuscular thingy was a valid, it wouldn't negate everything else we know. There is no silver bullet.


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Replies to this message:
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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 95 of 119 (819315)
09-09-2017 11:40 AM
Reply to: Message 87 by Porkncheese
09-08-2017 2:44 PM


Re: Crepuscular rays
Porkncheese writes:

What silver bullet?


A silver bullet is a magic weapon - one shot and you win. My point was that you can't have one magic argument against a flat earth or against evolution or against anything else. One point against it doesn't defeat it.

You don't have to take that as a personal insult.

Prokncheese writes:

So far no one has helped me understand anything apart from this stupid war.


The only one who thinks its a war is you.

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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 98 of 119 (819393)
09-10-2017 2:21 PM
Reply to: Message 97 by CRR
09-10-2017 6:12 AM


Re: Crepuscular rays
CRR writes:

Must be a reference to the Lone Ranger ;-)


It's a reference to the Wolfman.

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Replies to this message:
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ringo
Member
Posts: 17829
From: frozen wasteland
Joined: 03-23-2005
Member Rating: 2.6


Message 100 of 119 (819396)
09-10-2017 2:45 PM
Reply to: Message 99 by dwise1
09-10-2017 2:38 PM


Re: Crepuscular rays
dwise1 writes:

It's a reference to a cure for syphilis circa 1900 by Paul Ehrlich. "Magic bullet" is synonymous.


Silver bullets go back to the Brothers Grimm, etc.

This message is a reply to:
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