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Can You Escape the Force of Gravity? [What is gravity?]
universetoday ^ | April 7, 2014 | Fraser Cain on

Posted on 04/07/2014 9:17:43 AM PDT by BenLurkin

There’s no end to it. Gravity appears to be madly greedy and long armed. Members of the Virgo Super cluster are connected to each other, and they’re dozens of millions of light-years apart. Objects in the Pisces-Cetus Super cluster complex are even connected to each other by our invisible and obnoxiously possessive friend. And they are hundreds of millions of light years apart…

In fact, you’re so popular that you are gravitationally pulled towards even most distant object in the observable Universe. And they, in turn, are linked to you. As a result, without the outward expansion and acceleration of the Universe, everything would fall inward to a common center of gravity. Newton thought that gravity was instantaneous and if the Sun disappeared, the Earth would immediately fly away. Einstein realized that gravity is distortions of spacetime caused by mass. And as it turns out, gravity moves at the speed of light.

(Excerpt) Read more at universetoday.com ...


TOPICS: Science
KEYWORDS: gravity; stringtheory
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1 posted on 04/07/2014 9:17:43 AM PDT by BenLurkin
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To: BenLurkin
Gravity isn't just a good idea; it's the law.
2 posted on 04/07/2014 9:22:21 AM PDT by MeganC (Support Matt Bevin to oust Mitch McConnell! https://mattbevin.com/)
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To: BenLurkin

Google “gravity push vs pull”. There is a strong case that gravity doesn’t actually pull. Rather, it is actually a “push” force.

And the fact that the argument can even be made shows how little we know about it.


3 posted on 04/07/2014 9:25:01 AM PDT by cuban leaf
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To: BenLurkin

This cat failed beating gravity though...

4 posted on 04/07/2014 9:25:15 AM PDT by GraceG
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To: BenLurkin

Google “gravity push vs pull”. There is a strong case that gravity doesn’t actually pull. Rather, it is actually a “push” force.

And the fact that the argument can even be made shows how little we know about it.

It’s quite possible that gravity is quite literally the mind of God holding everything together until the day of judgement, when he just mentally says, time for a fresh start.


5 posted on 04/07/2014 9:25:45 AM PDT by cuban leaf
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To: cuban leaf

Gravity operates as a repulsive force at a distance and attractive near it... How would this work...

The Rubber sheet model is WRONG.

Well or not precise..

Imagine the rubber sheet stretched over an above ground pool with NO air space between the sheet and the water and sealed perfectly along the edge...

The Drop a bowling ball in there to represent the sun... Marbles will continue to orbit around it... but look at the edge of the pool.... notice anything... it is is RAISED... ie REPLUSIVE at a distance!

Morons who think up the gravity as heavy ball on a rubber sheet forgot about the other side of deformation, the repulsive part..


6 posted on 04/07/2014 9:28:43 AM PDT by GraceG
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To: BenLurkin
Note this:

"The ground-based LIGO experiment might someday detect a gravitational wave, but there’s been no luck so far. The Space-based LISA experiment should detect gravitational waves with more precision. The first version will launch in 2015, but the real experiment probably won’t be operational until 2030."

Robert Forward (SF writer, scientist, all around smart guy) was searching for Gravity Waves at UCLA in the late 50's. There may have been earlier experiments. But so far we have zero evidence that they exist. Very odd. Very strange.

7 posted on 04/07/2014 9:28:54 AM PDT by InterceptPoint
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To: InterceptPoint

http://www.scientificamerican.com/article/gravity-waves-cmb-b-mode-polarization/

While I agree they have found evidence of gravity waves, I reject their trying to tie to the Big Bang.


8 posted on 04/07/2014 9:32:53 AM PDT by Dead Corpse (Tre Norner eg ber, binde til rota...)
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To: cuban leaf

“Push” implies repulsion versus attraction. If that’s what gravity did, we’d fly off the earth rather than stay on it, and meteors would not land on the planet.


9 posted on 04/07/2014 9:34:25 AM PDT by Olog-hai
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To: GraceG

I never heard the heavy ball thing before. But there is a lot of stuff about gravity actually pushing rather than pulling. It’s kinda based on something called “the ether”, an old term about space. And it does explain why light slows down when passing through water and then speeds up again once it passes through.

I imagine an infinite number of rope tows intersecting at every point in the universe. Energy grabs onto one of these and never goes as fast as the rope tow, but loses its grip a bit when passing through some items. And when a large mass blocks the rope tow, it reduces the speed further, allowing more grip on the rope tow going in exactly the opposite direction. When in stasis, the energy has an equal grip on all the rope tows passing through all the points it comes into contact with.


10 posted on 04/07/2014 9:35:16 AM PDT by cuban leaf
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To: GraceG

11 posted on 04/07/2014 9:35:46 AM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
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To: MeganC

And it’s funny how atheistic self-described scientists want to claim that such laws write themselves. Just like the codes in our DNA (incredibly more complex than any computer code mankind ever devised) wrote themselves.


12 posted on 04/07/2014 9:36:42 AM PDT by Olog-hai
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To: cuban leaf

“There is a strong case that gravity doesn’t actually pull. Rather, it is actually a “push” force.”

There’s no strong case, in fact quite the opposite, which is why physicists abandoned that idea at the turn of the last century.


13 posted on 04/07/2014 9:37:30 AM PDT by Boogieman
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To: GraceG

I think a truer understanding of gravity and how to manipulate and use it is the key to serious space travel.

Supposedly nothing can move faster than the speed of light but gravity can overcome it. In the case of black holes I begin to wonder if there is a speed of gravity.


14 posted on 04/07/2014 9:38:01 AM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: GraceG
but look at the edge of the pool.... notice anything... it is is RAISED... ie REPLUSIVE at a distance!

Sure, but that's because your demonstration is contained within a finite structure sitting atop a fluid medium. That said, there are the things we know about gravity which can then be used to determine some of its other properties.

But only the Almighty knows how gravity or magnetism or other forces really work. At least for now...

15 posted on 04/07/2014 9:41:25 AM PDT by Errant (Surround yourself with intelligent and industrious people who help and support each other.)
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To: Olog-hai

“Push” implies repulsion versus attraction. If that’s what gravity did, we’d fly off the earth rather than stay on it, and meteors would not land on the planet.


Yeah, that was how I saw it until I read the nuances in the theories.

When I was VERY young (like six), A friend of ours had one of those newfangled color TV’s. Now, my dad had actually explained to me, at a VERY high level, how TV’s worked. When he and his friend were messing around with the color TV, as a child, all I was noticing was them making the screen a full blue tint or full red tint and I remember (to this day) thinking, “Who would want a TV that gave the black and white picture a color tint?” It is because I knew that it was impossible to produce a picture that had multiple colors in it. I mean, that’s not how the electron beam worked. It didn’t come in colors.

But here we are...


16 posted on 04/07/2014 9:41:32 AM PDT by cuban leaf
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To: Olog-hai

The “push” theories don’t describe a force where the earth would be pushing us off the surface. Instead, they theorize that pressure is coming from all directions pushing us down to hold us against the earth. In those theories, the “attraction” we experience is a result of a graviational shadow... the earth blocks us from the pressure from one direction, so the pressure is no longer in equilibrium and we feel a pull in one direction.

The theories don’t work, but that is the idea behind them.


17 posted on 04/07/2014 9:42:14 AM PDT by Boogieman
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To: cuban leaf

“It’s kinda based on something called “the ether”, an old term about space.”

The ether is another idea that was abandoned because it failed to meet experimental testing. The Michelson-Morley experiment put the nails in that coffin, and paved the way for relativity.


18 posted on 04/07/2014 9:44:17 AM PDT by Boogieman
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Gravity is basically the force of weak implosion.


19 posted on 04/07/2014 9:46:34 AM PDT by Heartlander (We are all Rodeo Clowns now!)
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To: cuban leaf
And the fact that the argument can even be made shows how little we know about [gravity]

Al Gore used to promote global warming by stating that 'just like gravity, global warming is settled science.'

Which is deeply embarrassing to climate scientists who promote AGW, and hillarious to real scientists.

20 posted on 04/07/2014 9:51:21 AM PDT by kidd
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