Proof of alien's influence on earthlings: Gravity

Yeah, I know about gravity. It's why we haven't fall through the clouds.

But no one can explain what gravity truly is beyond giving this phenomenon a name. I can name anything too, I mean, Newton didn't discover gravity, he just gave it a name, d'oh.

Why, and what is gravity, really. Why do large things stick like magnets even when their compositon is pure dirt. By physical attractions, why only a few things stick and smaller things don't stick, why human don't stick to eachother. Why all the special rules to explain away those we can't explain when it comes to planets, asteroids, why don't moon's surface have accumulation of rocks like you have when you put a magnet ball amongst ball bearings, etc, etc, etc.

Well, one explanation outside of the box is that gravity is a handicap imposed by aliens.

Gravity, it's artificial.

well humans only stick to humans if you put them on top of each other, and even then, they tend to crush each other.

Gravity, on this earth pulls us towards the earth, i am no physicist by any stretch of the imagination, but seriously if i take a few physics lessons, why don't you join me and perhaps we could just end this silly thread right here.

Gravity is only one of four forces that keep us all together. It's the weakest! You might as well say that the weak nuclear force, strong nuclear force, and electromagnetic force are all proof of aliens :|

reply to post by evanmontegarde



"Forces"? Like energy? Where did it come from? What makes the forces last? Like Jedi Master Force?

Stop giving it name and explain it!

Originally posted by chickeneater
reply to post by evanmontegarde

 

"Forces"? Like energy? Where did it come from? What makes the forces last? Like Jedi Master Force?

Stop giving it name and explain it!

go get a degree in physics. then you can understand the forces.

and no... aliens dont control the forces.

all forces exist throughout the universe. gravity is not only an earthly force. its everywhere.

reply to post by omi_kron_gravitron



So forces just exist? I studied physics thank you (Harvard grad with MIT credits), and it's never explains anything, and neither have you beyond accepting it as a "force".

Think, beyond text books.

IMO gravity's been around for quite a long time, not only present on earth, but like everyone says, in the universe. I think its our orbit around the sun that determines our gravity, which is why on earth we may weigh a certain number, while on a different planet we'd weigh significantly less, or more, depending on the planet's orbit around the sun. Atmosphere also determines gravity, I think. Another reason we weigh less on the moon. Our weight is determined on gravity pull into the 'center'.

(sorry this seems a bit jumbled, something woke me up and its only 1230 am )

[edit on 16-9-2007 by Chiiru]

Its about the spinning of the earth.. like if you swung a bucket of water upside down fast enough it dont fall out, but if you slow down..... splash.

At the poles, the Earth hardly spins at all, but as you travel towards the equator, the rotational speed picks up. This makes sense -- as the circumference of a circle increases, a single point along it has to travel faster to complete a revolution in the same amount of time.

The rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth's rotation decreases to 700 to 900 miles per hour.

If the Earth were to stop spinning suddenly, the atmosphere would still be zipping along nicely at around 1,000 miles an hour. As a result, everything not attached to bedrock would pretty much be scoured clean.

Hope this helps

reply to post by chickeneater


You're right to say that there isn't any single accepted explanation for the force of gravity. Basically it's only a theory, but one that happens to be very accurate when tested experimentally. Physicists don't have to know what causes gravity, it suffices to be able to describe gravity's effect on objects.

It's silly to make a claim that aliens created gravity here. If anything, aliens understand more about gravity than we do here on earth, and may be able to manipulate gravity in ways we are not aware of, at least in the mainstream of science. A common explanation of some UFO's is that they are a result of alien technology that can manipulate gravity somehow. This doesn't mean that they are responsible for the fact that we stick to the earth.

Does space put pressure on the planet creating gravity? Imagine a sphere like Earth deep underwater where pressure is greatest. Now imagine your a bacteria on that sphere. Could you jump off the sphere or would the pressure surrounding the sphere keep you stuck to the surface?

Originally posted by Sekhemet
Its about the spinning of the earth.. like if you swung a bucket of water upside down fast enough it dont fall out, but if you slow down..... splash.

That I don't understand. The reason water stays in the bucket is inertia. But by the laws of inertia, we should pull AWAY from the Earth's surface due to rotation (ignoring gravity).
This would certainly explain why we weigh slightly less at the equator, as the faster your "speed", the more you would "pull away".
Also, there is SLIGHTLY more atmospheric pressure at our feet then, say, at our heads. So the weight of the atmosphere doesn't hold us here, if anything, it should "push" us away from the surface also. That's two forces I can think of that gravity works AGAINST. Good question Chickeneater, I don't understand gravity either.


[edit on 16/9/07 by NuclearPaul]

The late great Carl Sagan illustrated gravity nicely in his "Cosmos"
TV series. He stretched out a thin layer of rubber that was a few
feet square, placed a small metal ball in the center of it and said
that it was Earth. He then placed a smaller ball on the edges
and pushed it. The smaller ball circled and rolled down to the
center of the rubber sheet where the big steely was resting.

He said that the moon would "roll" down and crash into Earth
if it stopped circling the planet. It's a perfect balance between
the gravitational pull of Earth and the tendency of the moon to
want to pull away by the intertia it generates via its orbit.

I think Carl also said that the moon is slowing and is indeed
getting closer to Earth, just like the little steel ball gradually
circled around the big steel ball slower and eventually rolled
into it and sat there.

So space is a huge fabric and where there is mass, there's a
gravity well..or something like that. What keeps the balance
between these opposing forces is mother nature, God, or
whatever term you care to use for the creator of the Universe.

At least that's the way I visualize gravity..based on Mr. Sagan's
illustration a couple decades ago. -cwm

@chickeneater - Not everything that cant be explained has to be made by aliens ...gravity is just one of the forces that exists in the universe to regulate it so it wont fall appart I guess you could call it a internal regulator that helps keep the planets in check so they wont destroy themselves right after the big bang.. So I guess if anybody did "invent" gravity You would have to ask the "alien" that made the Big Bang as he was the one writing the rules . Its just one of the forces of nature .

Thinking this way we could say that photosintesis is a alien creation to give earth its air so that we can breathe

What I'm trying to say I guess is that some stuff even thou very mysterious is just natural and not artificial.

PS: Dont get me wrong I could belive that gravity was invented by aliens but then this race woule have to be responsible for the creation of the universe as we know it and I guess they could be called God's , by us and any race out there (and they would deserve the name) .

So ya if God is a alien then aliens created gravity

[edit on 16-9-2007 by Thill]

Gravity is a force that increases proportionally with the mass of the objects and decreases with the distance between those objects.

Two objects with the same weight near each other feel an equal force pulling them together. If there is nothing keeping those objects from moving they will get closer, and the closer they get the stronger is the force that pulls them together.

For example, if those objects have a mass of 1.000kg and they are 10 metres apart, then the force pulling them together would be 0,0000067 Newton.


If one of these two objects has a much bigger mass than the other, then the force acting on both objects will be bigger, but as one of the objects has a much smaller mass its inertia will be less than that of the bigger object, and so that object will be pulled to the bigger not with a greater force but with a smaller inertia, making accelerate quicker than the other.

If in this case the bigger object has a mass of 1.000.000 kg and the other has the same 1.000kg, and the distance is the same, the force pulling them together would be 0,0067 N, so it's a force ten times bigger than before acting on the smaller 1.000kg object but it's a force ten time bigger acting on a 1.000 times bigger object, making the smaller object react much faster to the force than the bigger.

Gravity can be seen on Earth in some conditions, for example, near a large mountain, a pendulum made with a long string and a small object at the end would be slightly attracted to the mountain, deviating from the vertical.


Gravity is a phenomenon that can be seen and measured, although its explanation has not yet been achieved. Newton's theory (the one I used in my example, the only one for which I know the formula) was (and still is) good enough for simpler cases, Einstein's theory explains some of the more complex cases also, but it is still not a full explanation of the way gravity works.

carewemusts example describes it best.

in simpe terms its the warping of spacetime by large objects that creates the effect we know as gravity. - Einstein

this video explains what gravity is watch from -2:25 minutes onwards for the info



so NO its not a force created by aliens , its a force created by large objects distorting spacetime, capiche? Harvard must be really going downhill if they leave this out....

[edit on 16-9-2007 by yeti101]

I think it would be useful to explain a bit more about gravity, since there are some obvious misunderstandings here. I leave it to the rest of you to decide whether a force that we see acting everywhere in the universe is created by aliens or not.

Originally posted by chickeneater
But no one can explain what gravity truly is beyond giving this phenomenon a name. I can name anything too, I mean, Newton didn't discover gravity, he just gave it a name, d'oh.

Gravity is a empirical phenomena completely determined by what we see. We like to describe it using some mathematical theory, because this allows us to give predictions, but the theories always remain falsifiable and are never absolute truth. Gravity in essence is the effect we measure and there is no further purpose or meaning to it, according to science.

In modern physics, gravity is seen as a effective force between massive objects caused by the theory of general theory. This is a theory that thinks of empty spacetime like a pseudo-Riemannian four-dimensional manifold, which is a fancy way of saying curved space, where the curvature is determined by the matter present. Now, you may think this is a view of the world which is completely preposterous, but the fact remains that it explains a lot of physical phenomena on medium (several centimeters) to extremely large scales (intergalactic distances) very accurately. Misner, Thorpe & Wheeler's book, Gravitation, which you should be able to get at any university library, has a large section (starting at page 1045, note especially box 40.4 on page 1129) about experimental evidence.

Especially, by looking comparing the motion of stars in other galaxies with those of stars in our own galaxy and comparing this motion of planets in our solar system, we see that general relativity explains these equally well. This shows that we can determine with high precision that the motion of distant stars goes by the same mathematical rules that apply in our solar system. The aliens should be able to control gravity in the entire universe for this to be true.

Originally posted by Chiiru
IMO gravity's been around for quite a long time, not only present on earth, but like everyone says, in the universe. I think its our orbit around the sun that determines our gravity, which is why on earth we may weigh a certain number, while on a different planet we'd weigh significantly less, or more, depending on the planet's orbit around the sun. Atmosphere also determines gravity, I think. Another reason we weigh less on the moon. Our weight is determined on gravity pull into the 'center'.

Furthermore, one can show a good approximation to general relativity at low densities and low speeds is Newtonian gravity. In most everyday situations (except GPS, where very high precision is needed) Newtonian gravity will give you very accurate predictions. This shows that the gravity we experience on earth is determined largely by the mass and radius of the earth, with some very small contributions by the rotation of the earth (variation of local gravitational constant g by latitude), the moon (tides) and the sun (spring tides).

Our orbit is determined by the mass of the sun, our distance to the sun and our angular momentum with respect to the sun. However, this orbit doesn't influence the gravity on earth in any meaningful way (one could imagine some extreme cases with stars rotating closely around black holes where it does matter, but here these effects are very small). Earth rotating at twice the distance around the sun would have almost identical gravity for its inhabitants.

The atmosphere of the earth has a very small mass in comparison to the rock and iron the earth is composed of. Furthermore, it is almost spherically symmetric and above us. Newton's theorem for the gravitational field of a spherical shell of mass, says that inside a spherically symmetric shell of mass, the contribution of this shell to the gravitational field is zero. Both its small mass and its symmetry show that the atmosphere of the earth is negligible for the gravity on the surface of the earth. There is a atmospheric pressure around the atmosphere around us, but it exerts forces to all sides of us (unless you have a vacuum between your shoes and the ground, similar to what happens with those plastic suckers you can put on the wall), thus not contributing a net force in any direction.

Yep, it's a weird one alright is ol' gravity...

I've always thought that gravity may be some kind of 'negative' force, as we are seemingly able to move around without too much of a problem whilst massive objects at a distance such as meteors can be "pulled in" by the Earth's gravity. Perhaps there is a "sphere of influence" which is strongest at its outer edge.

Perhaps this force is actually pushing objects towards the Earth as opposed to the Earth pulling on them. What I mean is that at greater distances from the Earth gravity may be stronger, propelling objects such as meteors our way, whilst being weaker at the Earth itself as we don't get pushed to the ground by it. The initial push on a distant object towards the Earth is perhaps what give it its speed, and as it gets closer, gravity gradually weakens but the object's speed is relatively unchanged due to inertia.

Perhaps there is a combination of both centrifugal force and this pushing force at work? If you think about the bucket of water example, yes the water stays in the bucket, but only because it is prevented from being thrown outwards by the bottom of the bucket itself. Perhaps we are prevented from flying off of the Earth by this gravitational sphere acting like the bottom of the bucket?

To be honest I don't really know, as I'm not any kind of physicist. This is just what I've come up with based on my limited grasp of logic...and now my brain is going to explode!

sotp - spacetime is bent more near the earth surface than it is further away. Lots of experiments using atomic clocks have been done to verify the results. Einstein had all your questions licked 90 years ago

you can find out all about it here en.wikipedia.org... & i'll post the youtube vid 1 more time as it seems people arnt even watching it




[edit on 16-9-2007 by yeti101]

Originally posted by chickeneater
So forces just exist? I studied physics thank you (Harvard grad with MIT credits), and it's never explains anything, and neither have you beyond accepting it as a "force".

mmmmkayyy... I'll bite.

So why does a person with a physics degree from Harvard with MIT credits have a problem understanding forces -- and why ask here rather than ask profs and students in the physics department? Was their instruction THAT bad?

Or is this a hypothetical and you're simply presenting an idea that was dismissed by folks who worked with quantum gravity, space-time concepts, and vector alorgebras and hoping it gets a better response here because most folks here wouldn't know how to multiply a vector matrix by a scalar and therefore would be more likely to accept badly constructed concepts and ideas?

Inquiring minds want to know.

dam it.. messed up my quote who i was replying to. back soon



[edit on 16-9-2007 by Sekhemet]