Skip to comments.Warp drive looks more promising than ever in recent NASA studies
Posted on 11/24/2012 1:33:34 PM PST by 2ndDivisionVet
The first steps towards interstellar travel have been taken, but the stars are very far away. Voyager 1 is about 17 light-hours distant from Earth and is traveling with a velocity of 0.006 percent of light speed, meaning it will take about 17,000 years to travel one light-year. Fortunately, the elusive "warp drive" now appears to be evolving past difficulties with new theoretical advances and a NASA test rig under development to measure artificially generated warping of space-time.
The warp drive broke away from being a wholly fictional concept in 1994, when physicist Miguel Alcubierre suggested that faster-than-light (FTL) travel was possible if you remained still on a flat piece of spacetime inside a warp bubble that was made to move at superluminal velocity. Rather like a magic carpet. The main idea here is that, although no material objects can travel faster than light, there is no known upper speed to the ability of spacetime itself to expand and contract. The only real hint we have is that the minimum velocity of spacetime expansion during the period of cosmological inflation was about 30 million billion times the speed of light...
(Excerpt) Read more at gizmag.com ...
even if pacetime were barely bent a tiny amount, we could see a prove shoot past Voyager 1 like it was sitting still.
Even a little could see us roam the solar system at will, even if other stars would still be too far away.
And here I thought the speed of light was the universal speed limit. Travel 30 million billion times faster???!?
Interstellar Highway Patrol Officer: Do you know why I stopped you?
Acceleration and deceleration stresses would have to be handled somehow- as would unexpected collisions with stray bits of mass in space, unless the bubble has some interesting properties of its own.
..missed it by that much! :-D
Actually officer, I'd like to know how you stopped me.
Let me be the first to say (in my best Scottish brogue): “We need more power!”
Even if we could build a vessel that could travel at 0.1% of the speed of light, we can colonize this entire solar system at will.
I had a physics conversation with my nephew the other day. It ended with him saying his physics prof would hate me. He teaches basic classical physics that don’t like to be jiggled around.
I simply pointed out that a point in space has no physical speed limit.
It’s the universal speed limit for material objects; spacetime isn’t a material object.
“WHy, I simply increased local gravity to infinity and it shut down your drives ability to create forward momentum. Look, you’re still at fulll throttle. Here’s your ticket. Time dialation fine increments may be incurred.”
There would be no G-forces inside of the bubble, nothing is actually moving inside the bubble
Hundred bucks for every ten over.
That takes care of the debt problem, right there.
“Even if we could build a vessel that could travel at 0.1% of the speed of light, we can colonize this entire solar system at will.”
How so? The place still has to be livable...
Does it require work by community organizers and/or the Muslim brotherhood then no thanks. I’ll wait for alcubierre to develop it himself.
“That’ll be twenty petillion dollars, sign here.”
There would be no acceleration; the ship does not move in the normal space. The acceleration (such as stretching of the space) occurs within an infinitely thin border of the bubble, but that border is far enough from the outer walls of the spacecraft.
As an example, take a sailor inside a submarine. The submarine may be moving pretty fast underwater, but the sailor is not feeling any pressure of water - there is some other shell, well away from him, that takes care of that. As far as the sailor is concerned, he is not moving anywhere.
At the rate the Dollar degrades- by then you might just be likely have that in your checking account.
Space stations and stuff can be colonies of a sort.
Give Obama a few more terms and you will beg for a patch of land on Pluto.
Supposedly from the point of view of the object being ‘accelerated’, it actually doesn’t move or notice any kind of G force of any kind.
Whether or not a practical actual working model does what it is supposed ot do, well...
..that would be the interesting part.
As your speed approaches or reaches c, your apparent mass reaches or exceeds that of a planet.
Your actual mass does not change at all.
But you would be gravitationally slinging things around you.
If mankind lives long enough, we may actuially see whether or not this is true.
And the municipal judge is in the Pleiades.
2012 and I am still walking on the pavement.
A simple Infinite Improbability Drive!
That's a huge amount of territory.
The Orion drive is another interesting idea that would also need to be built in space. (mostly because you’ll never be able to launch that kind of nuclear payload into space)
I personally think propulsion advances are the key to true human spaceflight.
But those are really harsh environments and it would cost a lot of money to colonize them. /s lol
That is true, but unfortunately it’d be impossible to start a new country in those places.
Zero’s too busy promoting trains and putting people on food stamps.
He’ll settle for Uranus.
Yeah but, with all this stretching of space going on, what happens when you try to come back the other way?
Does space start getting compressed again? What about "stretch" marks?
You could run into a wrinkle in time.
I may need to go out and sit on a rock in my back yard to ponder this.
Think of it this way. You are on the open sea in a boat and not moving but the sea is rushing past you.
Hopefully it won’t permanently damage the fabric of space-time.
(I actually wrote a story once where a technology did just that, tear holes in the fabric of space... I lost it a while back though... drat)
There is nothing wrong with trains provided there are enough people who want to ride them where they are going.
We'd probably need to screen for colonists ~ the Russians didn't so they're mostly outta' there! But it is livable, and life can be pleasant no matter where you go.
One of the more interesting things I ran into doing my research into the Skolt Sa'ami ~ and talk about some thin stuff ~ was that the 5,000 or so left behind in Russia in the Kola peninsula were usually small enough, and rigorous enough they were great candidates to be fighter pilots in the Russian air force. Even their best planes had a very tight fit and bad heating ~ these guys could survive. With that they became important rather than just Europe's smallest minority. Modern gear has no doubt made them less special, but you'd need folks like that to deal with Siberia and much of Canada. They exist.
Ha, Ha, HA!
He said you don't travel across the paper.
Uh Huh ...
and like the joke about naking your own man from mud, and God said ... "get your own mud" ... who makes the bend in the paper ?
“(I actually wrote a story once where a technology did just that, tear holes in the fabric of space... I lost it a while back though... drat)”
It probably fell through one of those holes.
“Cosmological inflation”? The price of stuff really went up, then. Used to be you could buy a pound of dark matter for ten or twelve parsnips (parsnips are the universal currency). Along comes cosmological inflation, and you couldn’t touch a teaspoon of dark matter for less than a hundred parsnips.
A ringed planet and/or some solar sailing in the inner Solar System would allow us freedom from the damn collectivists for hundreds or even thousands of years.
And don't forget the wonderful business opportunities for retirement homes on the moon. (Help I've fallen....Hey, I'm still falling, here! Somebody help.)
SSSHHHH! Are you nuts? Don’t let Obama know that there are numbers past the trillions.
It’s not a speed limit as such. You don’t go up to it and then find you can’t go any faster. It’s more like a horizon that you can never reach. Even in a flat spacetime model there’s plenty of “warping” in the Lorentz Transformation.
I recall that in FARMER IN THE SKY, I believe it was, the young hero questions the spaceship engineer what happens if you reach “almost” the speed of light and then go full blast. In the story, the engineer has no answer, only proving the author’s limited grasp of this subject.
Duh. Were talking about warping the fabric of time and space here. I'd say that qualifies.
No "unexpected collisions" as this bubble would not move through space as you seem to think, nor would it accelerate or decelerate. To someone in the bubble it would seem as if they were at one moment one place and a moment later at a location light years away.
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