Rotation of Earth
« on: July 13, 2022, 04:16:06 PM »
I'm new here, but, this is where my head is:

If the Earth is spinning perpetually due to the void/vacuum offering no resistance to the spin and there is no force currently acting upon it to spin, how is it that introducing another axis of spin does NOT cause complete chaos?

I understand that the imaginary poles that people envision are just that; imaginings and should play no role in our investigations.  Therefore, when another axis of spin is introduced (again, within a vacuum and nothing to stop it), how does it just loop around causing the seasons on this N/S shift?

I'd like to see a supercomputer figure this out for me... because, in reality, I cannot make it happen.  Using levitation 'balls' one can get a spin on it, but, the introduction of the second is impossible as far as I can determine without catastrophic failure upon earth

How is this possible?
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Re: Rotation of Earth
« Reply #1 on: July 13, 2022, 04:26:04 PM »
how is it that introducing another axis of spin does NOT cause complete chaos?
What other axis of spin?
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Offline BillO

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Re: Rotation of Earth
« Reply #2 on: July 13, 2022, 07:01:25 PM »
What other axis of spin?
I think he thinks that it's path around the sun means there is another axis of spin.

That's not the case.  At least not in RE science.  In RE science the earth is in orbit around the sun.  From a GR perspective it's just falling through it's local space.  There is no "spin" axis evolved. 
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Re: Rotation of Earth
« Reply #3 on: July 14, 2022, 04:56:00 PM »
What other axis of spin?
I think he thinks that it's path around the sun means there is another axis of spin.

That's not the case.  At least not in RE science.  In RE science the earth is in orbit around the sun.  From a GR perspective it's just falling through it's local space.  There is no "spin" axis evolved.

Thanks... for the reply.  I was just creatively thinking.  It was from trying to figure out how this was possible in a void.  If you are hit and rotate, what will stop you from continuing?   It's truly hard for me to read anything from NASA and take them seriously.   From NASA.

"But what caused Earth to tilt?
Cartoon of large object hitting Earth, knocking out big chunks of material that become the future Moon, and tilting the Earth's axis.  :)  lol


Long, long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter. So instead of rotating with its axis straight up and down, it leans over a bit.

By the way, that big thing that hit Earth is called Theia. It also blasted a big hole in the surface. That big hit sent a huge amount of dust and rubble into orbit. Most scientists think that that rubble, in time, became our Moon.

As Earth orbits the Sun, its tilted axis always points in the same direction. So, throughout the year, different parts of Earth get the Sun’s direct rays..."
« Last Edit: July 14, 2022, 05:05:36 PM by Truth or Fiction »
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Offline BillO

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Re: Rotation of Earth
« Reply #4 on: July 14, 2022, 07:05:56 PM »
"But what caused Earth to tilt?
Cartoon of large object hitting Earth, knocking out big chunks of material that become the future Moon, and tilting the Earth's axis.  :)  lol
Why do you find this so unbelievable?
Quote from: Ironic Pete
I DO NOT NEED DATA, I'M PRETTY SURE I'M RIGHT!!!!

You think something is true, and that's good enough for you.

Re: Rotation of Earth
« Reply #5 on: July 14, 2022, 11:01:12 PM »
"But what caused Earth to tilt?
Cartoon of large object hitting Earth, knocking out big chunks of material that become the future Moon, and tilting the Earth's axis.  :)  lol
Why do you find this so unbelievable?

Because, in a vacuum, void, etc., which is supposedly where the earth resides, it's ONLY because it's a vacuum with no resistance that the perpetual motion of earth continues.  I might be incorrect in my understanding of that, but, let's continue.

If Earth were spinning, and had a certain alignment with the Sun, I find it hard that a collision that knocks it hard enough to cause it to move 23.5 degrees (mind you, that movement must have some 'imaginary' axis through the earth, right?) is not going to do more than that.  It's as if a spin were initiated and then halted somehow.  I'm not buying the 'somehow', nor am I buying that the collision that large would not have sent the earth off it's current trajectory--before the collision.

Spin a globe in a vacuum and then add a collision to knock it off kilter, and if it does what earth does, I'll be satisfied, I imagine.  Only, it can't be CG.   Another thought is this:  There is no pole in which the earth revolves around  that would help 'balance' it or revolve around; this event would cause chaos to any rotation and alignment as far as I believe.  We tend to forget, when we imagine, it as being just a globe randomly spinning NOT on any 'pole' that exists in reality.

That's my issue.  A force caused something to happen, then no force stopped it.
« Last Edit: July 14, 2022, 11:10:41 PM by Truth or Fiction »
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Offline Iceman

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Re: Rotation of Earth
« Reply #6 on: July 15, 2022, 12:38:56 AM »
I think that what you’re saying would be true for a homogenous object with regular dimensions and even mass distribution with no other external forces acting on it.

But the earth ain’t those things.