Replies to This Discussion

Permalink Reply by Gregg RThomas on December 25, 2016 at 11:42pm

"Would you still be spinning? Relative to what?"

If Space-Time was still part of the Universe that you found yourself in, then Gravity would still be the dominate force and you would still be spinning, relative to the mass bending the Space-Time affecting you.

Also spinning in a vacuum provides no friction so you would spin forever unless acted upon by a different force.

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Permalink Reply by Pope Beanie on December 26, 2016 at 8:36pm

"But suppose you were spinning and suddenly everything else in the universe suddenly disappeared."

Aha, another kind of *God-poof* proof, eh?

Wish I knew the nature of space-time fabric, but I've wondered if perhaps dark energy expansion could be explained by a spinning universe, with a virtual center or axis that's in one of those rumored extra dimensions we can't yet detect.

Pope Beanie's Miracle-Dimension Entanglement Hypothesis and Snake Oil Formula.

You can fact check this one, someday: PBMDEH&SOF.

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Permalink Reply by Doc Feral on December 27, 2016 at 4:38pm

You would still spin, but wouldn't have a reference point to know that you were spinning. Except, for maybe your inner ear would tell you.. maybe

When you consider for a moment that centrifugal force is generated when you spin. The more spin the greater the force, you could be spinning so slow you may never notice or so fast that you might be glad you don't have a reference point to look at. With slow spins your inner ear may not be effected at all, whereas with higher spins it would be. 

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Permalink Reply by Unseen on December 28, 2016 at 10:47pm

One of the discoveries of recent physics (past several decades) is that space isn't nothingness. So-called "empty space" is only empty of matter, but it isn't empty in terms of subatomic particles, which are constantly coming into and passing out of existence. So, space is actually a kind of "stuff." A stuff you can spin in reference to.

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Permalink Reply by matt.clerke on December 29, 2016 at 5:47pm

Would you still be spinning?

Yes

Relative to what?

Yourself, a moment ago.

Why is the title in ALL CAPS? It makes this feel like a sensationalised discussion, but it's not.

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Permalink Reply by Pope Beanie on January 2, 2017 at 11:09pm

Here's a relevant article: Why Rotation Makes No Sense Sometimes

Like you say, there's something more to empty space than nothing... entanglement seems to prove instant "connections" of some kind across vast distances or nearby in a higher dimension. God, I hate sounding like another Doctor Woo. Difference is, I'm not declaring that this higher dimension or whatever it is actually exists, or that it explains other mysteries I want answers to. We just don't understand its mechanism, yet.

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Permalink Reply by Dale Headley on January 4, 2017 at 1:14pm

Space-time and gravity only exist as an artifact of the matter that permeates it. Bottom line: all motion is relative, so even if the observer is a material entity, space-time/gravity does not exist without other material entities with which to interact.  Therefore, spinning is a meaningless concept in a universe devoid of interacting, material entities. 

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Permalink Reply by Unseen on January 4, 2017 at 1:20pm

So, if your arms are out, blood will not rush to your fingertips and you won't get dizzy without another massive object with which to interact? There will be no evidence or sensation of spinning?

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Permalink Reply by Unseen on January 5, 2017 at 8:33pm

So-called "centrifugal force" isn't a physical force. The physical forces are "gravitational,electromagnetic, strong nuclear, and weak nuclear. Each one is described mathematically as a field. The gravitational force is modelled as a continuous classical field." (source)

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Permalink Reply by Zenith on January 5, 2017 at 6:25pm

It only works for spherical chickens in a vacuum.

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