# The Naked Scientists Forum

### Author Topic: SPACE TUNNEL  (Read 2834 times)

#### pandey_23ajay

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##### SPACE TUNNEL
« on: 23/04/2012 18:55:28 »
Lets say, there is a planet 'x', with diameter 100 km with its gravitational forces extending upto 1000 km from the centre of planet, planet is in vaccum devoid of any environment upto 1000 km. now question is why its gravity extends only upto 1000 km ??
As there is nothing to hinder gravity in its path, so i think, it is space which acts as resistance for flow of gravity, that means, if we compress space of thickness 1000, km gravitational forces will not be able to pass through it, in this way, we can construct a channel in space (tunnel),denying gravity and move with great speed, say light speed in space tunnel.
« Last Edit: 23/04/2012 18:57:38 by pandey_23ajay »

#### CliffordK

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##### Re: SPACE TUNNEL
« Reply #1 on: 24/04/2012 06:35:13 »
Gravity, of course, doesn't stop at an arbitrary distance.

Force due to gravity =

Where G is the gravitation constant: 6.67384 x 10-11
r is the distance between the center of gravity of the two bodies, and can be any distance including billions of lightyears.
m1 & m2 are the masses of the two bodies.

Perhaps gravity shouldn't be considered the force between the center of masses of the two bodies, but rather the sum of the force of gravity between every particle, and every other particle in each body.

So, to stop gravity at an arbitrary distance, one must essentially stop space.

Yet, at this point, nobody is quite sure what the fabric of space, or the fabric of space-time actually is.  Exiting into another dimension out of the fabric of space is good for science fiction, but there is no evidence that it will in fact ever be possible to do.

#### pandey_23ajay

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##### Re: SPACE TUNNEL
« Reply #2 on: 24/04/2012 09:21:56 »
Here we are talking about effective gravity-that is till how much distance a planet can pull an object towards itself to bring it to its surface. with larger distance between two bodies as you said, may be billions of light years, then gravity will be negligible and will not hinder motion or affect it in significant way so i think the  force due to gravity =G M-1*M-2/R2 is insignificant for larger distance, say light years.
Also to stop gravity, we should compress space as space provides resistance to flow of gravity.

#### simplified

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##### Re: SPACE TUNNEL
« Reply #3 on: 24/04/2012 14:12:06 »
Lets say, there is a planet 'x', with diameter 100 km with its gravitational forces extending upto 1000 km from the centre of planet, planet is in vaccum devoid of any environment upto 1000 km. now question is why its gravity extends only upto 1000 km ??
As there is nothing to hinder gravity in its path, so i think, it is space which acts as resistance for flow of gravity, that means, if we compress space of thickness 1000, km gravitational forces will not be able to pass through it, in this way, we can construct a channel in space (tunnel),denying gravity and move with great speed, say light speed in space tunnel.
Any "compressed space" reduces speed.The tunnel for storage of food. :P

#### pandey_23ajay

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##### Re: SPACE TUNNEL
« Reply #4 on: 24/04/2012 17:27:45 »
no one is able to compress space and no one knows the features of space, then how can you say that compressed space reduces speed. infact compressed space acts as barrier to gravity, so we are denying gravity, creating tunnel and increasing speed :)

#### CliffordK

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##### Re: SPACE TUNNEL
« Reply #5 on: 25/04/2012 00:04:41 »
Does the Earth pull the Moon towards the Earth?
Or does the Moon pull the Earth towards the Moon?
In fact, it is a bit of both.

The Earth's pull on the moon causes the moon to orbit the Earth at 384,000 km.  Yet, the Moon's pull on the Earth causes the Earth to wobble in it's motion, and is one of the factors of the two daily tides.

Likewise, the Sun pulls on the Earth, and the Earth pulls on the Sun with an equal, but opposite force.

Surely the Voyager, now at 1.8 billion km from the Earth is beyond Earth's influence?  Read about microgravity.  Earth continues to exert about 1 pm/s2 of acceleration on the Voyager back towards the Earth.

What about Andromeda, at about 2.54 million lightyears away?

If you consider the Milky Way, not as a single entity with mass of 2×1042 kg, but rather the sum of 300 billion individual stars, and perhaps a trillion planets, each interacting with the trillion stars in Andromeda.  If one considers the particle interpretation of gravity I suggested above, then it is not the entire mass of the Milky Way interacting with Andromeda, but rather the sum of the individual interactions.  Earth being pulled by the billion stars in Andromeda, and exerting it's own tiny force on all of the stars within Andromeda.

The only true way to escape gravity and micro-gravity is to escape space itself.

#### pandey_23ajay

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##### Re: SPACE TUNNEL
« Reply #6 on: 25/04/2012 17:06:40 »
if there are billion of planets and stars interacting with earth, how the balance between forces have been maintained, how is earth in such a balanced motion ? i think gravitational forces too have limit like magnetic forces and they can not extend upto infinite distance, i will give u good reason for it.
all heavenly bodies in universe have variable gravity, some have more, some less, that means gravity have varying strength, then you can not say that gravity of any strength extends upto infinity, so microgravity is only theoretical concept and not practical.
DOES TWO BODIES AT INFINITE DISTANCE ATTRACT EACH OTHER, DEFINATELY NOT BECAUSE, TO ATTRACT SOME FORCE IS REQUIRED AND NO FORCE CAN EXTEND UPTO INFINITE DISTANCE.

#### simplified

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##### Re: SPACE TUNNEL
« Reply #7 on: 25/04/2012 18:57:48 »
if there are billion of planets and stars interacting with earth, how the balance between forces have been maintained, how is earth in such a balanced motion ? i think gravitational forces too have limit like magnetic forces and they can not extend upto infinite distance, i will give u good reason for it.
all heavenly bodies in universe have variable gravity, some have more, some less, that means gravity have varying strength, then you can not say that gravity of any strength extends upto infinity, so microgravity is only theoretical concept and not practical.
DOES TWO BODIES AT INFINITE DISTANCE ATTRACT EACH OTHER, DEFINATELY NOT BECAUSE, TO ATTRACT SOME FORCE IS REQUIRED AND NO FORCE CAN EXTEND UPTO INFINITE DISTANCE.
Then is denominator "r^2" wrong?

#### pandey_23ajay

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##### Re: SPACE TUNNEL
« Reply #8 on: 26/04/2012 17:05:18 »
yes, i think "r2" is true for limited distance and not for large / infinite distance.
there is something in space which acts as resistance to gravity, which lowers its strength as distance increases.

#### The Naked Scientists Forum

##### Re: SPACE TUNNEL
« Reply #8 on: 26/04/2012 17:05:18 »

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