Can we create Gravity?

RockerHi all Engineers!

I have a question for those interested in Physics. Can we have artifical Gravity? Meaning, can we create gravity under test conditions?

With best regards,
ROCKER

A centrifuge simulates gravity. Commonly used in aerospace for pilot training.

However, gravity as such is a property of mass. Probably if we can have a baby black hole you can have a portable gravity generator. The user may get sucked in and become part of the black hole!

Bioramani

It is rather easy. We can create magnetic force among various test bodies as we know that magnetism and gravity are parallel concepts. You can increase the intensity by increasing the magnetic attraction.

I do not think we can create gravity by simply creating magnetic forced amongst bodies. But yes, creating a small black hole can serve the purpose, but then its effects can be totally unpredictable. it may gulp anything and everything..

We can at least create a condition for zero gravity. See the discovery channel. Any space exploration program involving human beings cannot be conducted if we do not create zero gravity. People have done this many times before. We in NASA give training to astronauts.

If we can wear a suit with correct ballast/buoyancy one can be at zero gravity inside water. Air must be provided for breathing.
Bioramani

Well, for now rotation seems to be the best method. As calculated by some from Stanford uni on a Summer NASA course, they came up with the Stanford Torus. A donut shaped ring with a diameter of 1.8 km. It should rotate at 1 rpm about it's axis to generate 1g (normal gravity on earth).

<a href="https://en.wikipedia.org/wiki/Stanford_torus" target="_blank" rel="nofollow noopener noreferrer">Stanford torus - Wikipedia</a>
<a href="https://en.wikipedia.org/wiki/Artificial_gravity#Rotation" target="_blank" rel="nofollow noopener noreferrer">Artificial gravity - Wikipedia</a>

An excellently detailed explanation of artificial gravity: #-Link-Snipped-#

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'Gravity is the least understood of the four basic forces in Physics (Gravity, Electricity & Magnetism, and the Strong and Weak Nuclear Forces). We do know how to describe it, and understand it seems a property associated with #-Link-Snipped-#. There is no known mechanism at this point for artificially creating gravity, other than having a suitably large mass at hand.'

It could be faked by spinning or with rockets.

The reason why I'd like to create gravity is for inverting it, creating anti-gravity. No suits, no spinning space stations, no machines that accelerate us slow enough to equally counter the force of gravity, or any of that stuff.
If we can create it, then it's possible to invert it. Causing levitation. I always wanted a Hover board...

Sean720The reason why I'd like to create gravity is for inverting it, creating anti-gravity. No suits, no spinning space stations, no machines that accelerate us slow enough to equally counter the force of gravity, or any of that stuff.
If we can create it, then it's possible to invert it. Causing levitation. I always wanted a Hover board...

Gravity can't be created. It's going to exist between any two bodies, no matter what. I see that we're going to rely on rockets to keep us afloat in the air for a few years.

The_Big_KYep!



Of course. There exist a force of attraction between any two masses. This force is called as Gravitational force.

Correct me if I am wrong.

-The Big K-
p.s: Probably this could lead to a discussion on "Can we create zero gravity area on earth?"

well this is a start- to consider this prodject we must need to identify the particular component gravity which i must say causes an effect to space AND time. What is this force or should i say how to define the force that we want to eject from a particular location, is that what you want to do?

happy-bosonwell this is a start- to consider this prodject we must need to identify the particular component gravity which i must say causes an effect to space AND time. What is this force or should i say how to define the force that we want to eject from a particular location, is that what you want to do?

Gravity exists between any two objects. Like my computer's mouse and keyboard have a gravitational attraction between them, but it's so weak because their masses are very small to overcome all the frictional forces acting on them.

In order to eliminate that force from any region on Earth; we'll have to figure out a way to compensate for that force; because by default all the objects on Earth are under Earth's gravitational influence.

I have absolutely no clue how the nature of the force can be studied. Any inputs are welcome.

Here is an interesting antigravity application:
#-Link-Snipped-#

bioramaniHere is an interesting antigravity application:
#-Link-Snipped-#

#-Link-Snipped-#
i like the anti gravity balls it would be amazing if they illuminate them with soothing colors

magnetism is a start magnetic levitation goes against gravity forces of the earth

The_Big_KGravity exists between any two objects. Like my computer's mouse and keyboard have a gravitational attraction between them, but it's so weak because their masses are very small to overcome all the frictional forces acting on them.

In order to eliminate that force from any region on Earth; we'll have to figure out a way to compensate for that force; because by default all the objects on Earth are under Earth's gravitational influence.

I have absolutely no clue how the nature of the force can be studied. Any inputs are welcome.

we have forces amongst matter because it has mass

any matter which will have mass, will be under forces


when there is no mass in matter, forces are over


hence, try to create a massless matter, like LIGHT


but it also experiences forces

RockerHi all Engineers!

I have a question for those interested in Physics. Can we have artifical Gravity? Meaning, can we create gravity under test conditions?

With best regards,
ROCKER

NASA trains their astronauts in ZERO GRAVITY ROOMS. If that is possible then creating a gravity hole is not far off. But the risk involved is worth

jeffrey samuelNASA trains their astronauts in ZERO GRAVITY ROOMS.

That is not quite the case. Any object in free fall in vacuum is in a sense in a micro gravity situation. What NASA has is a free fall tower. Humans are not tested in this. Only equipment. That too for all of 5 seconds.
The other situation is flight in a parabolic path. This also does not last too long.

The Zero-G facility provides researchers with a near weightless or microgravity environment for a duration of 5.18 seconds. Microgravity, which is the condition of relative near weightlessness, can only be achieved on Earth by putting an object in a state of free fall. NASA conducts microgravity experiments on earth using drops towers and aircraft flying parabolic trajectories. Allowing the experiment hardware to free fall a distance of 432 feet (132 m) creates the microgravity environment at the Zero-G facility.

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interesting

strange more news and valuable info always happy to gain them

micro gravity quite interesting changes the ideas of gravity simulation

reivieing the old thread.
Gravity as it self is not a attracting force. So I dont think you can 'create gravity'.
Gavity per theory of relatiivty (classical physics by Newton said its force) , mentions gravity as only curvature of space and time. I have been trying to understand this whole concept since many months now and best example so far what I came across - I am giving here.
Consider a trampolean. Put a bowling ball, the ball rests in some place, making a curvature. now all smaller objects what you put on the trampolean would 'move' towards the heavier object. This 2d trampolean surface is your space time and objects moving towards heavier obj is your gravity.
to compare with flying objects being hung to earth is to comapre this trampolean in 3d

mahulmaybe some time in future we can create gravity, stephen hawking says that gravitational force is experienced by two bodies due to the exchange of a particle named graviton between them(brief history of time). now maybe this phenomenon could be manipulated too(correct me if i'm wrong).

hmm.. gravtion comes into picture only in quantum physics, not in real life scenario i suppose.

quantum physics is still debated in many fields once they are proved true then gravit will become more and more easier to comprehend in real world items

well suppose if we can increase the density of a substance,(increasing mass without changing volume), the net effect of gravity will increase, so in my opinion, gravity can be created with such a material (although it is just a hypothesis), ....well this thought needs refinement..😁

That is what happens in a black hole. Gravitation is an inherent property of mass. What is created is mass. Not gravity. Massless gravity is unknown.

#-Link-Snipped-# sir,
many things stll baffle me.
for example - I consider a 2D plane concaved at a location where there is heavy body. , so what exaclty stops another object from completly sliding towards th heavier object?? and in return put itself into orbit ??
In another words - what made earth be where it is w.r.t sun and to save itself , it later started rotating?what determines that distance? if i roll a ball into this concave plane - it wont stop at a place and start revolving around the centre heavy object right? It would rather go and sit next to that huge body
may be I missed somthing very obvious- but I have been thinking of this question since long

..or
since gravity is emulation in space time fabric, the movement (travel in space , over a specific time) relates itself to gravity?? and thus may be while formation earth put itself in orbit? I dont know. As I think I go mad

durga#-Link-Snipped-# sir,
many things stll baffle me.

In another words - what made earth be where it is w.r.t sun and to save itself , it later started rotating?what determines that distance? if i roll a ball into this concave plane - it wont stop at a place and start revolving around the centre heavy object right? It would rather go and sit next to that huge body
may be I missed somthing very obvious- but I have been thinking of this question since long

Earth was formed by matter spinning off from the sun itself, as also the other planets. These bits of matter collapsed on themselves to form a sphere that slowly cooled to the present state. The collapse itself was due to the gravitational force radiating from the centre of mass of that bunch of matter.

Whenever some thing spins off another spinning object, it will take off along the tangent. But the gravitational attraction of the parent body (the sun in this case) pulls it back. Ultimately the second body stabilizes in an equilibrium orbit.
If you consider our solar system, all planets are (almost) in one plane, which is what you would expect if all of them spun off the Sun.

Cosmologists will be horrified by the rather simple explanation that is given here. However, this is basically what happened. Interested persons can go into greater detail if needed. Incidentally Indian Institute of Astrophysics, Raman Research Institute and the I.I.Sc. are all in Bangalore with extensive libraries on astrophysics.

Now that you have some clue about it, your head can stop its own spinning.

Sir, are you here refering to the laws of centripetal and centrifugal forces ?

Yes, in a sense.Suppose you spin a large wet ball. You will see drops of water thrown out near the middle plane. Similarly, matter spun out of the middle plane of the sun in the early days. Whenever a large blob of matter (even if they were discrete liquid or gas bubbles) comes off this will have its own gravitational field centred at the centre of mass. There will be some residual spin as well. Gradually the bits will coalesce together to form a planet which will be spinning and in a stable orbit around the parent body.

Are the forces related to outer space bodies heavily active in organizing our solar system? I was thinking through the last few posts and wondered, are our planets are arranged, not entirely but mostly, smallest at the edges and largest in the center due to a balance between the gravitational pull of the sun and the other large bodies in our galaxy? I suppose it seems logical and reasonable that our solar system is not an isolated set of forces, but the point off of which my tangent wanders was the concept of planets, having been flung from the sun, maintaining stable orbit: is stable orbit achieved as a consequence of being flung in space, or is stable orbit achieved by being hung in a path between large bodies?
Maybe this is obvious or entry-level astrophysics, I never studied it 😔

#-Link-Snipped-# Sir,
I get what you are saying ..I am relating the same example with another illusion.If I have a huge ball hung with a thread in space. There are other tiny balls tied to the bigger ball at its diameter at varying lenghts, when this huge suspended ball rotates, all the tiny balls rotate along the daimeter of the larger ball and as soon as the suspended ball stops rotating, they collapse downwards .
we cant in this instance call the threads as gavity as gravity was never a force exerted by masses, but we can only compare it with gravity
#-Link-Snipped-#
I think its far more complex than what we are discussing :-s.
Leave alone coglomation of masses, we are not even sure where the mass/energy have come from???

According to einstein space contains 4 dimensions (3dimen+time) space fabric which is stretchable. Any body having mass alters this fabric resulting gravitational pull. This concept came because of cosmic speed limit, I.e speed of light. Gravity is just an effect.

Just for the sake of curiosity - I wish to know whether Einstein really proposed the concept of 4th dimension? Has time been accepted as the 4th dimension by all the science community?

ya now they say that there are 11 dimensions according to string theory, but we are only aware of these 4 dimensions. protons are made up of quarks and quarks are made up of tiny vibration strings. you can Google about string theory, it defines dimensions.

The_Big_KHas time been accepted as the 4th dimension by all the science community?

"Time" is not 4th dimension.The fourth dimension is "Space-Time".
And the entire string theory is dependent on Space-time concept.

By the way,accepting & not accepting the theory is scientist's personal choice.
Anyways,theoretically it's proved about concept of 4th dimension,but there are many researchers/scientists at the same time are pointing out the flaws in the theory.

Untill practically we don't use 4th dimension in any practical purpose,not everyone will believe in assumption based mathematical theory.

mechanical24any one can tell me abt any small project a mechanical project.
plz reply me fast

Read project thread.. Its useful for you.