121

Flat Earth Theory / Re: The earth's magnetic field flipping

« on: November 09, 2017, 03:41:55 PM »

Frankly, saying something doesn't happen because it happens over a long time period isn't a valid reason for refuting it.  Just because it isn't good enough for you doesn't make it wrong.  It would be easier to hold a logical debate if you would actually counter an argument rather than just saying "It's not good enough.... next" or "that happened thousands of years ago, so I don't think it really happened."

From National Geographic, https://news.nationalgeographic.com/news/2004/09/0927_040927_field_flip.html (Not some crackpot web site !)

"Our planet's magnetic field reverses about once every 200,000 years on average. However, the time between reversals is highly variable. The last time Earth's magnetic field flipped was 780,000 years ago, according to the geologic record of Earth's polarity.
The information is captured when molten lava erupts onto Earth's crust and hardens, much in the way that iron filings on a piece of cardboard align themselves to the field of a magnet held beneath it."

The phenomena is generally accepted, and we know that the magnetic field does move around.  Magnetic North moves about 40 miles a year further away from the geographic (true) north pole. This is well established and corrections are published for use on navigational charts.  This difference is important as a magnetic compass points to magnetic north, whereas a gyrocompass points to true north.
So let's go back to the original question.  We know the magnetic north moves as we can measure it.  We know that the magnetic field flips from geological records.  So how does the flat earth theory explain this ?

122

Flat Earth Theory / Re: The earth's magnetic field flipping

« on: November 09, 2017, 03:08:37 PM »

There is no proof that there is a molten outer core, nor a solid inner core for that matter.  The structure of the earth is a theory that is supported by observable facts.  E.g.  Seismic surveys, the behaviour of the magnetic field, volcanic activity, tectonic plate movement, and so on.  Theories change as our understanding of the planet gets better and technology improves.  40 years ago we believed the earth had a molten inner core and a solid outer core. 

Anyway, I digress.  The question I posed was how does the flat earth theory explain how the magnetic field of the earth flips ?

123

Flat Earth Theory / Re: How can the sun be a spot light?

« on: November 09, 2017, 01:28:40 PM »

the observations of any one human trump the observations of any other human at the same time. duh, the earth is flat, but it has mountains and valleys. this makes sense if you digest it on an empty skull.

Yeah, I get it that you think it's broadly flat, just as we like to consider a oblate spheroid a ball.  However, you forgot to answer the key point of the original question.  How can the sun behave like a spotlight ?

124

Flat Earth Theory / The earth's magnetic field flipping

« on: November 09, 2017, 01:23:09 PM »

It's well established that the earth's magnetic field 'flips' every few hundred thousand years.  Scientists have developed a computer model that explains explains the earths magnetic field being generated by a solid core causing turbulence in a molten outer core, which generates electric currents that in turn generate the magnetic field.  This is the same physics that allow generators to work (I'm an electrical design engineer, so you're gonna have to trust me on that one !) The same model predicts the the field flipping.  Obviously, this model works for a spherical spinning earth, and wouldn't work on a flat earth.  How does the fact earth theory explain how the earth's magnetic field is generated, and how it 'flips' periodically.

125

Flat Earth Theory / Re: Wait, hold on a second? NO GRAVITY?!?!

« on: November 09, 2017, 05:04:14 AM »

To add to the questions about the sun, what keeps it up, and why does it circle as it's believed ?  According to the universal acceleration theory, it should come crashing down to the earth unless there is something holding it up.  According to Newton, it should fly off in a straight line unless there is something keeping it swinging round in a circle (think of a ball on a bit of string).

Furthermore, we know the sun rotates with a period of about 25 days as we can observe sunspot patterns.  Therefore we know that is a sphere.  Therefore, is radiates light equally in all directions, and as such, it would be visible 24 hours a day unless there was some sort of lamp shade.  Is there a theory about what form this shade takes, and why is has never been observed ?

126

Flat Earth Theory / Re: Universal Acceleration debunked

« on: November 09, 2017, 04:52:42 AM »

You've missed my point.  Your Wiki quotes Einstein's theories of relativity and special relativity as the reason why the earth does not exceed the speed of light under the UA theory.  However, these theories are intertwined with Einstein's theories about gravity.  You can't have one without the other.  Therefore, either Einstein is correct, and gravity exists, or Einstein is wrong and there is no gravity, but then the speed of light is no longer a constant.  And we know from observations that the speed of light is a constant.

I'd be interested to hear a clear explanation.

More to the point, you Wiki quotes Einstein's theory of relativity as the explanation for why UA doesn't exceed the speed of light.  However, Einstein's theories explain gravity as a distortion space/time.  This only work with a spherical earth, and explains why the earth is spherical, why the atmosphere doesn't get sucked into space, why the water doesn't fall off the south pole, etc.  Why are you 'cherry picking' the parts of his theories that suit you, but are ignoring the parts you don't like.

Junker and I are referencing Einstein's Equivelence Principle.

127

Flat Earth Theory / Re: Universal Acceleration debunked

« on: November 08, 2017, 05:04:28 AM »

More to the point, you Wiki quotes Einstein's theory of relativity as the explanation for why UA doesn't exceed the speed of light.  However, Einstein's theories explain gravity as a distortion space/time.  This only work with a spherical earth, and explains why the earth is spherical, why the atmosphere doesn't get sucked into space, why the water doesn't fall off the south pole, etc.  Why are you 'cherry picking' the parts of his theories that suit you, but are ignoring the parts you don't like.