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 sleepy
Registered: 01/17/05
Posts: 2,607
Last seen: 12 hours, 41 minutes
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 does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar travel?
#7869486 - 01/12/08 03:40 PM (10 months, 17 days ago) |
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just what the title says. i still can't understand exactly what gravity is, and we know "It" exists, but do we really know what It is? considering this "force" stretches across huge distances, through complete vaccum, and also has NO MASS whatsoever,
along with the fact that every scientific/physical barrier which has seemed to exist is always transcended 100-500 years later, i bet we will soon be able to travel to other galaxies through stargates.
??????? PROFIT!
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 drkrobotnik
lurk moar.
Registered: 04/06/06
Posts: 3,939
Loc: tx
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 Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: sleepy]
#7869525 - 01/12/08 03:50 PM (10 months, 17 days ago) |
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how does gravity stretch through a complete vacuum?
do you mean space as the complete vacuum?
i dont believe there is gravity in space..
plus have you ever seen the movie stargate?
if you can travel like that i wouldn't want to.. 
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honeypotty
Mad Scientist
Registered: 12/14/07
Posts: 19
Last seen: 8 days, 20 hours
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: drkrobotnik]
#7869548 - 01/12/08 04:00 PM (10 months, 17 days ago) |
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In spite of what it sez on star trek there is no sign of any way of travelling faster than light. And because of basic fizziks it aint likely we'll go faster than maybe 100,000mph. So getting to nearby stars is, like, out of the question. People wanna believe there's gonna be some star trek someday but it ain't on. We R stuck here. So party like its 1999.
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drkrobotnik
lurk moar.
Registered: 04/06/06
Posts: 3,939
Loc: tx
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: honeypotty]
#7869564 - 01/12/08 04:05 PM (10 months, 17 days ago) |
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if i can do it in mass effect, then i should be able to do it in real life.. at least in the future!
 ftw!
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 DieCommie
Ally
Registered: 12/11/03
Posts: 7,657
Loc: The Union
Last seen: 7 minutes, 28 seconds
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: sleepy]
#7869592 - 01/12/08 04:12 PM (10 months, 17 days ago) |
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Quote:
sleepy said:
just what the title says. i still can't understand exactly what gravity is, and we know "It" exists, but do we really know what It is?
In science nobody knows what anything is. Everything is described in terms of other things we dont know. Forces, energy, mass... these are basic building block of physics theory, but what they are cannot be known. What we can study is how they interact, and what models predict their interactions.
EDIT - In physics definitions the effect of gravity is from the bending of space time, or the exchange of 'graviton' particles. (depends on if you are thinking relativity theory or quantum theory)
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Behold yon miserable creature. That Point is a Being like ourselves, but confined to the non-dimensional Gulf. He is himself his own World, his own Universe; of any other than himself he can form no conception; he knows not Length, nor Breadth, nor Height, for he has had no experience of them; he has no cognizance even of the number Two; nor has he a thought of Plurality; for he is himself his One and All, being really Nothing. Yet mark his perfect self-contentment, and hence learn his lesson, that to be self-contented is to be vile and ignorant, and that to aspire is better than to be blindly and impotently happy.
Edited by DieCommie (01/12/08 04:14 PM)
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DieCommie
Ally
Registered: 12/11/03
Posts: 7,657
Loc: The Union
Last seen: 7 minutes, 28 seconds
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: drkrobotnik]
#7869614 - 01/12/08 04:16 PM (10 months, 17 days ago) |
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Quote:
drkrobotnik said:
i dont believe there is gravity in space..
Of course there is gravity in space. Thats what keeps the planets in orbit, and galaxies together.
The force of gravity from any object (including yourself) extends through all of space.
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Behold yon miserable creature. That Point is a Being like ourselves, but confined to the non-dimensional Gulf. He is himself his own World, his own Universe; of any other than himself he can form no conception; he knows not Length, nor Breadth, nor Height, for he has had no experience of them; he has no cognizance even of the number Two; nor has he a thought of Plurality; for he is himself his One and All, being really Nothing. Yet mark his perfect self-contentment, and hence learn his lesson, that to be self-contented is to be vile and ignorant, and that to aspire is better than to be blindly and impotently happy.
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sleepy
Registered: 01/17/05
Posts: 2,607
Last seen: 12 hours, 41 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: drkrobotnik]
#7869636 - 01/12/08 04:21 PM (10 months, 17 days ago) |
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Quote:
drkrobotnik said:
how does gravity stretch through a complete vacuum?
do you mean space as the complete vacuum?
i dont believe there is gravity in space..
plus have you ever seen the movie stargate?
if you can travel like that i wouldn't want to..
gravity most definitely travels through the vaccum of space, e.g. the moon causing ocean tides on earth. gravity is what keeps us at the same distance (approx) as we orbit the sun.
don't assume there are going to be super bad monsters on the other side, its just a tv show. imagine if you could stargate to the Haight Ashbury planet in the solar system Hoffmann
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drkrobotnik
lurk moar.
Registered: 04/06/06
Posts: 3,939
Loc: tx
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: DieCommie]
#7869645 - 01/12/08 04:22 PM (10 months, 17 days ago) |
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like gravity on a larger scale that's what pulls the planets in orbit.. dude i gotcha thanks dude i understand that.
i wish i wasn't so ignorant about this kinda stuff. i also wish i had more general electives to take so i can learn about this kinda stuff.
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maggotz
Registered: 06/24/06
Posts: 5,937
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: drkrobotnik]
#7869759 - 01/12/08 04:49 PM (10 months, 17 days ago) |
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the internet is your friend.
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Sausage
Hamster with asausage
Registered: 02/04/03
Posts: 55
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: drkrobotnik]
#7869808 - 01/12/08 04:59 PM (10 months, 17 days ago) |
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what you need is a starship equipped with an infinite improbability drive, then there would be no need to go mucking about in hyperspace. 
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Acyl
cyanidepoisoning
Registered: 12/13/05
Posts: 4,346
Loc: N.W.T.
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: sleepy]
#7869874 - 01/12/08 05:18 PM (10 months, 17 days ago) |
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Quote:
sleepy said:
just what the title says. i still can't understand exactly what gravity is, and we know "It" exists, but do we really know what It is? considering this "force" stretches across huge distances, through complete vaccum, and also has NO MASS whatsoever,
along with the fact that every scientific/physical barrier which has seemed to exist is always transcended 100-500 years later, i bet we will soon be able to travel to other galaxies through stargates.
??????? PROFIT!
Well, isnt gravity also limited to the speed of light?
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1 ,2
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Diploid
Cuban
Registered: 01/09/03
Posts: 9,909
Loc: Rabbit Hole
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Sausage]
#7869887 - 01/12/08 05:21 PM (10 months, 17 days ago) |
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Eh, you only need a Finite Probability Drive to get to most places. 
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Wanna hear something depressing? One out of three Shroomerites wants to lock me in a government cage for using a substance they don't like.
Hard to believe, right? Read it for yourself:
http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721
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trendal
point of inflection
Registered: 04/17/01
Posts: 17,687
Loc: Ontario, Canada
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Diploid]
#7870002 - 01/12/08 05:44 PM (10 months, 17 days ago) |
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That's an Infinite Probability Drive 
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You're here because you know something.
What you know you can't explain,
But you feel it;
You've felt it your entire life.
That there's something wrong with the world.
You don't know what it is, but it's there....
Like a splinter in your mind...
Driving you mad.
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Madtowntripper
Sun-Beams out of Cucumbers
Registered: 03/06/03
Posts: 13,991
Last seen: 3 hours, 41 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Acyl]
#7870113 - 01/12/08 06:12 PM (10 months, 17 days ago) |
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Quote:
Acyl said:
Quote:
sleepy said:
just what the title says. i still can't understand exactly what gravity is, and we know "It" exists, but do we really know what It is? considering this "force" stretches across huge distances, through complete vaccum, and also has NO MASS whatsoever,
along with the fact that every scientific/physical barrier which has seemed to exist is always transcended 100-500 years later, i bet we will soon be able to travel to other galaxies through stargates.
??????? PROFIT!
Well, isnt gravity also limited to the speed of light?
I'm no astrophysicist, but I was under the impression that gravity was traveling FTL.
Its entirely possible I misunderstood though.
The math of this stuff goes right over my head...
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DieCommie
Ally
Registered: 12/11/03
Posts: 7,657
Loc: The Union
Last seen: 7 minutes, 28 seconds
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Madtowntripper]
#7870146 - 01/12/08 06:18 PM (10 months, 17 days ago) |
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The force of gravity travels at the speed of light. Otherwise you could communicate faster then light using gravity and violate causality.
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Behold yon miserable creature. That Point is a Being like ourselves, but confined to the non-dimensional Gulf. He is himself his own World, his own Universe; of any other than himself he can form no conception; he knows not Length, nor Breadth, nor Height, for he has had no experience of them; he has no cognizance even of the number Two; nor has he a thought of Plurality; for he is himself his One and All, being really Nothing. Yet mark his perfect self-contentment, and hence learn his lesson, that to be self-contented is to be vile and ignorant, and that to aspire is better than to be blindly and impotently happy.
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Madtowntripper
Sun-Beams out of Cucumbers
Registered: 03/06/03
Posts: 13,991
Last seen: 3 hours, 41 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: DieCommie]
#7870166 - 01/12/08 06:21 PM (10 months, 17 days ago) |
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Like I said, I'm entirely open to the fact that I'm wrong.
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Cubie
El. S. De.
Registered: 01/11/08
Posts: 1,498
Loc: Down the rabbit hole...
Last seen: 9 days, 18 hours
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Madtowntripper]
#7870490 - 01/12/08 07:26 PM (10 months, 17 days ago) |
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Many many very smart people think that by using a super strong electromagnetic field around something it will create an antigravity efféct and slip through dimensions giving way to intersteller travel and the billions of possabilitys for anti gravity.
There are a bunch of documentrys about a airforce carrier doing this a long ass time ago and it disappeared and ended up thousands of miles away. With people stuck halfway in walls and the floor n shit.
Crazy stuff
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Diploid
Cuban
Registered: 01/09/03
Posts: 9,909
Loc: Rabbit Hole
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Cubie]
#7870504 - 01/12/08 07:29 PM (10 months, 17 days ago) |
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That was a movie, not reality.
--------------------
Wanna hear something depressing? One out of three Shroomerites wants to lock me in a government cage for using a substance they don't like.
Hard to believe, right? Read it for yourself:
http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721
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Madtowntripper
Sun-Beams out of Cucumbers
Registered: 03/06/03
Posts: 13,991
Last seen: 3 hours, 41 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Diploid]
#7870542 - 01/12/08 07:37 PM (10 months, 17 days ago) |
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Cubie
El. S. De.
Registered: 01/11/08
Posts: 1,498
Loc: Down the rabbit hole...
Last seen: 9 days, 18 hours
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Madtowntripper]
#7870555 - 01/12/08 07:40 PM (10 months, 17 days ago) |
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It was based ón Reality. Really, look it up
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Cubie
El. S. De.
Registered: 01/11/08
Posts: 1,498
Loc: Down the rabbit hole...
Last seen: 9 days, 18 hours
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Cubie]
#7870566 - 01/12/08 07:43 PM (10 months, 17 days ago) |
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Well I mean witness reports, documentrys, n stuff like roswell. Noone "knows" for sure but when has our government NOT lied to us?
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Cepheus
Balance
Registered: 04/19/06
Posts: 5,190
Loc: the space between reality...
Last seen: 3 hours, 4 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Cubie]
#7874550 - 01/13/08 05:45 PM (10 months, 16 days ago) |
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Gravity is a weird one.. we touched on it in the physics class I'm taking.. When people talk about gravitational potential, according to this formula; GM[1/r1-1/r2], theres an absolute limit at infinite: -62.6MJ
Then as the gravitational potential approaches zero the gravitational force is really strong..
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Cepheus
"Facts do not cease to exist because they are ignored" ~ Aldous Huxley.
 "The sun may set in the west, but it will always rise again in the east the next morning"
Free Spore Ring Europe
Send any spare spore prints you might have and help the distribution 
Open Source. Freedom. GNU/Linux
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Annom
※※※※※※
Registered: 12/22/02
Posts: 5,292
Loc: sdnalrehteN ehT
Last seen: 18 hours, 48 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Cepheus]
#7875007 - 01/13/08 07:14 PM (10 months, 16 days ago) |
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Quote:
When people talk about gravitational potential, according to this formula; GM[1/r1-1/r2], theres an absolute limit at infinite: -62.6MJ
Then as the gravitational potential approaches zero the gravitational force is really strong..
That's incorrect. There is a limit for gravitational potential at infinity = 0. It becomes more negative when you approach, for example, Earth. The maximum (negative) potential energy on the surface of the earth is -62.6MJ.
When using potential, the absolute number is of little importance, it is the slope of the potential hill that gives the gravitational force.
You can add a constant to your formula, Up = GM[1/r1-1/r2]+U0, and this wouldn't change the forces derived from it. When this constant is set to 0, the formula corresponds to a potential at infinity of 0. This is what is done in orbital mechanics.
The gradient of the scaler field(gravitational potential) is a vector field(gravitational force field). This defines potential energy.
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Ginseng1
Elegant Universe
Registered: 09/02/04
Posts: 2,238
Last seen: 13 hours, 50 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: honeypotty]
#7875111 - 01/13/08 07:32 PM (10 months, 16 days ago) |
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Quote:
honeypotty said:
In spite of what it sez on star trek there is no sign of any way of travelling faster than light. And because of basic fizziks it aint likely we'll go faster than maybe 100,000mph. So getting to nearby stars is, like, out of the question. People wanna believe there's gonna be some star trek someday but it ain't on. We R stuck here. So party like its 1999.
No, no, no!
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"The universe is honest, humanity is not." - A star
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Ginseng1
Elegant Universe
Registered: 09/02/04
Posts: 2,238
Last seen: 13 hours, 50 minutes
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Re: does "gravity" (whatever gravity is) insinuate the possibility of instantaneous interstellar tra [Re: Cubie]
#7875143 - 01/13/08 07:36 PM (10 months, 16 days ago) |
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Does anybody here know anything about Lockheed Martin?
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"The universe is honest, humanity is not." - A star
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